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Cylinder Head Flow information

Cylinder Head Flow Data at 28 Inches of Water

[Acura] [Alfa Romeo] [AMC] [Audi] [BMW] [Buick] [Cadillac] [Chevy] [BB Chevy] [Chrysler] [BB Chrysler] [Citroen] [Cummins] [Ferrari] [Fiat] [Ford] [BB Ford] [GMC] [GM Duramax Diesel] [Holden] [Honda] [Hyundai] [Jaguar] [Lotus] [Mazda] [Mercedes] [MGB] [Mitsubishi] [Nissan] [Olds] [Opel / Vauxhall] [Peugeot] [Pontiac] [Porsche] [Renault] [Rover] [Saab] [Studebaker] [Subaru] [Toyota] [Volvo] [VW]

Motorcycle heads
[Buell] [Harley-Davidson] [Honda] [Jawa] [Kawasaki] [Kohler] [KTM] [Rotax] [Suzuki] [Triumph] [Victory] [Yamaha] [IH]
ALL Volume numbers are in CCs. - ALL Flow numbers are in CFM.

Cylinder Head Flow Data Table

Acura

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1.8l Type R CCH

N/A

33mm/ 28mm

N/A

262/207

1.8l Type R Ported CCH

N/A

33mm/ 28mm

N/A

299/242

GSR Alaniz Cyl Heads

N/A

33mm/ 28mm

N/A

77/-

123/-

154/-

174/-

194/-

215/-

232/-

245/-

256/-

GSR Ported Alaniz Cyl Heads

N/A

75/-

117/-

151/-

179/-

209/-

236/-

256/-

271/-

279/-

GSR Ported WAT Porflow

N/A

33mm/ 28mm
81mm

N/A

84/70

119/111

150/150

183/176

213/188

237/195

255/197

267/198

280/203

1.8l GSR CCH

N/A

33mm/ 28mm

N/A

250/189

1.8l GSR Ported CCH

N/A

33mm/ 28mm

N/A

290/234

RSX-S Alaniz Cyl Heads

N/A

35mm/ 30mm

N/A

83/-

130/-

173/-

208/-

234/-

254/-

269/-

280/-

285/-

RSX Ported CHR Motorsports LLC Home Made Bench

N/A

35mm/ 30mm
-
Radius on Exhaust

N/A

95/113

131/148

162/175

192/200

213/213

234/226

251/232

264/237

277/241

286/244

293/245

Alfa Romeo

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

15mm

16mm

Average

2.0l Jim K

N/A

44mm/40mm

N/A

18/18

42/42

64/62

78/75

110/89

133/99

144/105

147/107

149/109

151/110

2.0l Jim K Exhaust Ported

N/A

44mm/40mm

N/A

18/20

42/42

64/64

78/75

110/92

133/107

144/117

147/120

149/124

151/125

2.0l Jim K 1mmOS Valves

N/A

45mm/41mm

N/A

18/18

42/42

64/62

84/84

122/110

149/119

164/122

171/124

172/124

174/124

2.0l Ported Stage 2 Jim K

N/A

46mm/38mm

N/A

20/17

44/35

64/52

84/67

124/97

154/110

177/119

184/122

189/124

192/125

2.0l Ported Stage 3 Jim K

N/A

46mm/38mm

N/A

20/17

45/35

67/52

89/67

136/97

172/110

192/119

197/122

201/124

201/125

155 TS Ported Andreas Engstr�m welded and epoxi

N/A

47mm/38mm
84mm
Pipe

N/A

28/25

50/43

66/66

87/87

132/126

177/155

213/166

225/167

228/167

232/169

235/170

237/171

238/172

Alfa 2

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

'72 2.0l

N/A

44mm/40mm

N/A

48/42

93/78

131/97

150/100

153/99

158/97

'72 2.0l +1mm Valves

N/A

45mm/41mm

N/A

53/49

110/79

143/98

165/104

171/104

176/104

AMC

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

AMC Stone Stock 304 Ken Parkman Iron

N/A

1.787/1.406
3.75
No Pipe

N/A

65/38

127/74

156/100

168/116

176/125

184/130

194/133

AMC 517 '70 Ken Parkman Iron

N/A

1.79/-
3.82

N/A

69/-

125/-

154/-

166/-

173/-

182/-

189/-

AMC 090 '73 Ken Parkman SF110 Iron

N/A

2.025/1.625

74/56

156/112

201/141

219/149

226/149

232/150

238/151

AMC 090 74Bubblefender Iron

N/A

2.025/1.625

N/A

74/56

156/112

201/141

219/145

226/149

232/150

AMC 090 Ported 74Bubblefender Iron

N/A

2.025/1.625

N/A

85/53

160/103

210/142

225/163

230/169

238/175

AMC 291 Iron

173/73

2.025/1.625

N/A

225/155

AMC 291 '70 Ken Parkman SF110 Iron

N/A

2.025/1.625
-
No Pipe

71/55

127/107

179/135

209/142

217/145

222/145

228/145

AMC 291 Bowl Intake Ported Exhaust Iron

N/A

2.055/1.65
-
Pipe

N/A

67/50

138/108

193/153

236/178

257/220

257/227

257/230

AMC 291-C '70 390 '71 401 74Bubblefender Iron

N/A

2.025/1.625

138/101

185/137

212/152

214/154

219/-

AMC 291-C Ported John Iron

N/A

-
-
No Pipe

N/A

90/57

148/115

200/147

241/192

273/206

293/210

300/211

308/-

AMC 475 '78-'85 74Bubblefender Iron

N/A

2.025/1.625

142/107

186/137

204/143

209/144

214/-

AMC 502 '74-'77 74Bubblefender Iron

N/A

2.025/1.625

59.2

144/114

188/132

204/140

212/144

216/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

AMC 502 '74 Ken Parkman SF110 Iron

N/A

2.025/1.625

70/59

143/113

192/146

213/150

220/152

228/153

236/153

AMC SS Iron

N/A

2.08/1.66

N/A

264/-

AMC SS 558 Ken Parkman Iron

N/A

2.08/1.66
-
No Pipe

N/A

70/57

154/100

206/129

242/146

239/152

246/159

248/167

AMC SS 558 Ken Parkman Iron

N/A

2.08/1.66
-
Pipe

N/A

70/58

154/107

206/142

242/161

239/172

246/181

248/190

AMC Iron Ported Payton

N/A

2.08/1.625

270/200

Edelbrock Performer 60119, 60139 SF1020 Alum

185/70

2.02/1.60

65/52

130/96

192/127

235/163

258/182

260/190

Edelbrock Performer RPM 60109 Alum

185/70

2.02/1.60
4.15

252/162

Edelbrock Ported 74Bubblefender Alum

N/A

2.02/1.60

134/106

182/145

244/176

270/200

274/212

Edelbrock Ported 74Bubblefender Alum

N/A

2.08/1.60

143/113

202/149

254/181

278/201

286/214

296/-

Edelbrock Performer 401 Ported Meaux Racing SF600 Alum

N/A

2.02/1.60
4.00
No Pipe

N/A

130/97

192/135

241/179

268/203

282/213

Indy 401SR

235/105

2.10/1.65

136/101

194/137

237/162

265/173

275/177

281/180

Indy 401-SR Alum

235/105

2.10/1.65

136/123

195/159

233/178

259/186

272/191

272/192

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Indy 401-SR Full Porting Alum

N/A

2.10/1.65

N/A

141/123

204/155

253/181

287/207

311/225

322/237

Indy 401-SR Ported Alfano Perfermance Alum

N/A

2.10/1.65

N/A

65/55

139/113

200/151

250/186

290/208

313/225

323/238

326/250

Indy 401-SR Ported Garland Perfermance Alum

N/A

2.10/1.65

N/A

80/54

160/115

228/170

283/216

322/239

340/257

346/270

349/280

Indy 401-SR Ported Alum

N/A

2.10/1.65

N/A

80/54

160/115

228/170

283/216

322/239

341/257

350/270

358/280

Indy 401-1 Alum

245/110

2.19/1.81

128/94

185/131

230/161

268/181

294/194

304/202

Indy 401-1 Alum

245/110

2.19/1.81

139/114

195/147

241/172

272/189

288/197

288/205

Indy 401-1 Full Porting Alum

275/125

2.19/1.81

N/A

147/120

208/158

257/186

297/207

329/224

354/238

Indy 401-1 CNC Alum

300/134

2.25/1.81

239/175

298/214

349/254

376/274

388/285

390/287

Indy 401-1 Ported RadAMX Alum

N/A

2.19/1.81
-
No Pipe

N/A

54/60

131/112

197/153

253/185

299/211

340/234

360/249

-/259

Audi

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.380

.400

.450

.500

.550

.600

.650

Average

1.8l T 20 V Small Port CCH

N/A

26.9mm/ 29.9mm

N/A

177/171

1.8l T 20 V Small Port Ported CCH

N/A

26.9mm/ 29.9mm

N/A

238/202

1.8l T 20 V Large Port CCH

N/A

26.9mm/ 29.9mm

N/A

212/195

1.8l T 20 V Large Port Ported CCH

N/A

26.9mm/ 29.9mm

N/A

257/224

1.8l T 20V CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

53/-

102/89

142/-

178/134

205/-

222/161

231/-

239/176

245/182

1.8l T 20V Ported CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

48/-

96/83

139/-

179/146

208/-

228/193

242/-

250/223

256/-

255/250

_Audi

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

S2 2.2l 20V Stock NPS

N/A

32mm/ 28mm
82mm
No Pipe

N/A

56/49

107/94

156/119

181/125

191/128

193/130

A7 2.3l MORGO Systems

N/A

32mm/ 29.5mm
-
Pipe

N/A

35/25

61/49

81/71

106/91

134/115

157/128

175/131

185/135

193/138

199/140

202/142

203/143

206/145

A7 2.3l Ported MORGO Systems

N/A

32mm/ 29.5mm
-
Pipe

N/A

33/32

64/67

94/94

125/115

154/131

180/147

197/157

211/166

223/170

239/176

240/180

246/182

250/185

2.5l Wv T4 MORGO Systems

N/A

Stock
-
Pipe

N/A

32/-

49/-

67/-

83/-

100/-

109/-

117/-

125/-

130/-

134/-

139/-

143/-

146/-

2.5l Wv T4 Ported MORGO Systems

N/A

Stock
-
Pipe

N/A

33/-

54/-

74/-

93/-

110/-

124/-

135/-

140/-

146/-

150/-

157/-

163/-

166/-

2.5l V6 MORGO Systems

N/A

27mm/ 24mm
-
Pipe

N/A

28/24

54/50

78/74

100/95

116/106

120/110

126/111

128/112

128/113

129/113

131/113

133/114

135/114

2.5l V6 Ported MORGO Systems

N/A

27mm/ 24mm
-
Pipe

N/A

-/27

-/53

-79

-/106

-/123

-/131

-/132

-/134

-/135

-/136

-/137

4.2l V8 MORGO Systems

N/A

Stock
-
Pipe

N/A

32/-

58/-

80/-

104/-

129/-

149/-

166/-

180/-

191/-

199/-

202/-

203/-

4.2l V8 Ported MORGO Systems

N/A

Stock
-
Pipe

N/A

32/-

61/-

90/-

119/-

148/-

172/-

189/-

198/-

208-

215/-

222/-

226/-

229/-

BMW

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Mini A Series Sabre Heads

N/A

33.2mm/ 29.4mm
-
No Pipe

N/A

19/16

38/33

56/45

72/53

82/58

89/63

95/67

101/69

102/72

Mini A Series Ported Sabre Heads Offset Guides

N/A

36.7mm/ 32mm
-
No Pipe

N/A

22/18

46/38

66/65

78/68

100/78

110/88

116/95

121/104

121/108

123/110

M5 CNC Heads UK

N/A

1.374/1.198
100mm
Pipe

N/A

42/-

86/74

133/-

182/150

221/-

245/177

255/-

262/185

268/-

271/189

M5 Ported CNC Heads UK

N/A

1.374/1.198
100mm
Pipe

N/A

42/-

89/73

134/-

175/159

212/-

239/193

263/-

278/208

288/-

292/208

295/-

EVO 3

N/A

37mm/ 32mm

N/A

92/77

185/165

248/213

264/225

268/228

273/231

Mini Cooper S CHR Motorsports LLC Home Made Bench

N/A

30.25mm/ 23.25mm
-
Radius on Exhaust

N/A

33/31

66/51

98/77

127/98

153/106

169/111

174/113

176/115

175/116

Mini Cooper S CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.25mm
-
Radius on Exhaust

N/A

83/45

136/107

160/120

179/127

182/130

191/132

193/133

Mini Cooper S Ported CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.25mm
-
Radius on Exhaust

N/A

55/35

111/69

144/102

173/129

200/149

213/164

221/172

232/173

236/174

Mini Cooper S Ported CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.5mm
-
Radius on Exhaust

N/A

55/42

111/80

144/123

173/151

200/161

213/165

221/170

232/172

236/173

Mini Cooper S Madness

N/A

30.25mm/ 23.25mm

N/A

32/30

69/69

103/93

136/104

163/108

178/110

178/111

179/111

Mini Cooper S Ported Madness Stage 1

N/A

30.25mm/ 24.5mm

N/A

38/37

75/70

109/107

143/134

175/142

198/144

211/145

217/145

Mini Cooper S Ported Madness Stage 2

N/A

31.5mm/ 24.5mm

N/A

36/32

73/61

110/91

145/122

178/152

213/161

224/164

230/165

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Mini Cooper S '01-06 M2 Race Systems

98/54

30.2mm/ 23.25mm
3.285

37/26

71/61

103/86

136/98

165/102

182/104

184/105

185/105

Mini Cooper S '01-06 CNC M2 Race Systems

114/69

30.2mm/ 23.25mm
3.285

38/27

75/58

112/86

146/111

173/140

192/158

209/172

221/175

230/176

Mini Cooper S '01-06 CNC M2 Race Systems 1mmOS Valves

114/69

31.2mm/ 24.25mm
3.285

41/28

80/64

118/99

155/126

180/150

196/162

210/172

224/176

234/177

Mini Cooper S Ported Cosworth Stage 1

N/A

31.25mm/ 24.25

N/A

35/30

74/54

107/81

138/102

165/118

186/128

201/134

210/137

Mini Cooper S Ported JCW

N/A

34/29

72/58

105/86

137/117

165/124

182/128

189/129

186/130

Mini SOHC Sabre Heads

N/A

30.2mm/ 23.3mm
77mm
No Pipe

N/A

34/26

70/56

107/79

140/98

166/105

180/108

181/108

186/108

188/109

Mini SOHC Ported Sabre Heads

N/A

30.2mm/ 23.3mm
77mm
No Pipe

N/A

35/27

70/66

105/106

139/126

170/129

190/131

200/132

205/132

210/133

212/134

Mini CNC Heads UK

N/A

30.2mm/ 23.33mm
100mm
No Pipe

N/A

35/-

71/56

105/-

142/100

171/-

189/109

193/-

196/110

197/-

-/110

Mini Ported CNC Heads UK

N/A

30.2mm/ 23.33mm
100mm
No Pipe

N/A

36/-

72/66

107/-

145/148

176/-

200/170

215/-

225/174

230/-

233/174

M20 325 1705885 Digger

N/A

42mm/36mm

N/A

55/44

110/89

155/115

181/124

181/127

186/127

188/127

Alpina 1705885 Digger

N/A

42mm/36mm

N/A

53/39

106/86

151/124

183/139

190/145

191/154

195/156

_BMW

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

M20B25_885 Ported /Andre' Norrback

N/A

42mm/36mm
85mm
No Pipe

N/A

42/31

82/61

119/84

154/103

170/112

177/119

181/122

184/-

M20B25 AMC Ported /Andre' Norrback

N/A

42mm/35mm
86mm
No Pipe

N/A

48/36

86/68

115/100

138/107

156/117

159/120

161/120

M20 325i Ported NPS

N/A

41.95mm/ 35.9mm
83mm
No Pipe

N/A

40/33

82/64

122/89

153/106

168/116

173/121

173/124

M52B20 Roadster Ported /Andre' Norrback

N/A

30mm/27mm
85mm
No Pipe

N/A

55/51

112/98

162/122

186/138

189/148

190/152

M20 323i 1264200 Marquis Rex

N/A

40mm/34mm

N/A

33/-

69/-

101/-

117/-

119/-

123/-

M20 323i 1277731 Marquis Rex

N/A

40mm/34mm

N/A

32/-

68/-

105/-

129/-

136/-

141/-

M20 325i 1705885 Marquis Rex

N/A

42mm/36mm

N/A

36/-

78/-

112/-

135/-

158/-

175/-

Buick

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick 320 Stright 8 Stock NPS Iron

N/A

1.77/1.45
3.543
No Pipe

N/A

50/43

101/83

128/93

134/96

Buick 215 V8 Alum

N/A

1.525/1.35

N/A

128/81

Buick 300 V8 Alum

N/A

1.625/1.312

N/A

105/96

135/108

142/115

149/115

154/116

Buick 300 V8 Ported Alum

N/A

1.775/1.50
-
No Pipe

N/A

66/47

129/104

174/130

191/146

196/152

Buick 300 V8 Ported Peak Performance Alum

N/A

1.625/1.312

N/A

151/108

159/123

160/129

Buick 340 V8 DynoDave Iron

N/A

1.81/1.37

N/A

54/38

112/75

153/99

172/102

175/104

Buick 340 1376330 NPS Iron

N/A

1.81/1.39

N/A

49/40

102/80

143/97

156/102

160/104

160/-

Buick 340 1376330 VJ Bowls Port Cleanup NPS Iron

N/A

1.81/1.39

N/A

57/44

110/82

155/104

185/118

185/130

195/136

Buick Nailhead Stock Iron

N/A

1.875/1.437
4.00
No Pipe

124

63/41

110/81

146/101

183/107

188/111

Buick Nailhead '57 889 Mild Ported RnD Engineering I-30 E-30 Back Cut Iron

N/A

1.875/1.437
4.00
No Pipe

124

64/47

126/76

169/99

196/111

196/116

Buick Nailhead '66 401 Stock Babeola Iron

N/A

1.87/1.50

124

53/47

110/78

157/103

180/117

190/120

196/123

Buick Nailhead 401 Ported Gessler Iron

N/A

1.875/1.50

N/A

62/48

127/83

171/108

197/130

212/138

219/141

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick GN Iron

N/A

1.71/1.50

N/A

156/110

Buick GN Iron

N/A

1.71/1.50

N/A

52/45

108/84

149/101

152/108

155/111

Buick GN Iron

N/A

1.71/1.50

N/A

54/50

111/96

161/131

177/136

178/136

Buick GN Ported Iron

N/A

1.77/1.50

N/A

196/157

Buick GN Ported Iron

N/A

1.77/1.50

N/A

59/49

127/98

175/142

193/154

202/156

Buick GN Ported VPE Iron

N/A

206/173

217/181

221/184

Buick GN Ported VPE Stage 3 Iron

N/A

205/174

218/184

223/184

Buick GN1 Mild Ported SF600

N/A

1.77/1.50
3.875

N/A

62/51

128/106

182/139

216/164

228/172

228/177

Buick GN1 Ported

N/A

1.77/1.50

N/A

64/52

143/115

206/149

237/181

244/197

Buick '86 Ported Iron

N/A

1.77/1.50

N/A

120/99

173/137

201/151

208/152

214/152

218/152

TA Performance Street Intimidator

156/72

1.94/1.60
4.00
No Pipe

59/61

118/107

167/143

210/162

210/177

213/180

TA Performance Street Eliminator

163/73

1.94/1.60

46/55

59/42

108/87

156/121

184/135

195/144

204/145

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance Street Eliminator Ported

163/73

1.94/1.60

N/A

87/49

150/100

204/139

235/184

263/195

266/204

Buick V6 Stage II Ported Chapman

247/-

2.10/1.625

40.5

68/53

145/113

221/174

281/213

321/229

336/241

341/247

Buick TA Ported to Stage I Iron

N/A

2.13/1.75

N/A

66/57

133/109

188/133

226/147

236/159

234/159

233/162

Buick 455 '73 860 Ported Smithberg Racing Iron

N/A

2.125/1.75
4.31
No Pipe

N/A

75/67

157/115

222/149

268/170

287/187

289/193

Buick Stage I Iron

N/A

2.13/1.75

N/A

230/189

Buick Stage I '74 Jim Iron

N/A

2.13/1.75

N/A

218/139

Buick Stage I Ported Iron

N/A

295/205

Buick Stage I Ported Iron

N/A

74/-

158/-

233/-

280/-

292/-

Buick Stage I Ported Iron

N/A

73/-

153/-

222/-

276/-

304/-

297/-

Buick Stage II

N/A

2.13/1.75

N/A

236/213

Buick 350 Rick Crawford Iron

N/A

Stock

N/A

55/44

112/100

165/119

199/137

196/146

199/149

Buick 350 Rick Crawford Ported Iron

N/A

1.92/1.55

N/A

65/66

122/114

180/150

236/179

260/191

264/199

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick 455 Iron

N/A

2.00/1.625

N/A

59/52

120/100

175/124

208/140

218/147

Buick 455 Iron

184/142

2.125/1.75

N/A

220/150

Buick 455 Ported Gessler Iron

N/A

2.125/1.75

N/A

71/61

146/119

213/145

259/172

270/187

264/195

Buick 430 (Stage 1 Valves) Charlie Evans Iron

N/A

2.125/1.75

N/A

76/57

142/97

198/124

227/142

225/152

227/156

Buick 430 Ported Evans Iron

N/A

Stock

N/A

76/53

156/106

224/139

264/166

274/177

269/181

Buick Converted to Stage 1 Valves TA Iron

N/A

2.13/1.755

N/A

66/57

133/109

188/133

226/147

236/159

233/159

233/162

Buick 430 985 Ported TA SF600 Iron

N/A

2.13/1.755
4.350

N/A

142/109

202/155

250/176

287/199

300/204

Buick Ported P.A.E. Iron

N/A

2.15/1.75
-
No Pipe

N/A

78/58

143/113

213/164

262/190

283/207

297/212

Bulldog Alum

N/A

2.125/1.75

N/A

82/62

144/114

204/155

253/184

293/201

303/215

Bulldog CCM Alum

250/-

2.19/1.81

Bulldog Ported Earick Racing Alum

N/A

101/-

162/-

234/-

344/-

349/-

380/-

Edelbrock Performer RPM 60049 SF1020 Alum

215/130

2.125/1.75

68/58

127/108

190/150

241/173

274/183

273/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Edelbrock Performer RPM 60049 Mike Alum

N/A

2.125/1.75

N/A

68/55

130/107

194/144

251/164

278/172

283/175

281/175

Edelbrock Performer RPM 60049 George Alum

N/A

2.125/1.75

N/A

66/55

126/103

192/139

247/162

279/175

276/183

278/185

Edelbrock Performer RPM Ported SF600 Alum

N/A

2.125/1.75

N/A

66/59

137/115

206/154

260/177

296/188

301/194

Edelbrock Ported Gessler Level 2 Alum

N/A

2.125/1.75

N/A

68/66

142/116

210/155

260/176

294/187

305/193

TA Performance Ported 455 Iron

N/A

2.13/1.75

N/A

250/180

TA Performance Street Eliminator SF600

N/A

2.16/1.755

N/A

72/-

149/-

194/161

249/190

285/206

290/211

281/211

TA Performance Street Eliminator

N/A

2.26/1.755

N/A

70/59

140/112

194/161

249/190

285/206

290/211

281/211

TA Performance Street Eliminator Stage 1 Ported

263/179

2.26/1.755

50/57

149/122

214/167

276/197

329/226

361/237

TA Performance Street Eliminator Stage 1 Ported Gessler

N/A

2.16/1.755

N/A

70/61

144/112

208/165

266/194

310/214

328/226

TA Performance Street Eliminator Stage 2 Kerry SF600

N/A

2.16/1.755
4.375

N/A

72/-

149/-

218/-

273/-

298/-

295/-

300/-

TA Performance Street Eliminator Stage 2 Ported Kerry SF600

N/A

2.16/1.755
4.375
No Pipe

N/A

75/69

157/128

238/176

305/222

347/251

361/263

360/265

367/266

TA Performance Street Eliminator Stage 2 Ported Kerry SF600

N/A

2.16/1.755
4.375
2 1/8" Pipe

N/A

75/70

157/135

238/187

305/236

347/273

361/294

360/304

367/306

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance TE Stage 2 Ported Alum

N/A

2.26/1.755
4.50

388/268

TA Performance Stage 1 Out of Box Jim Weise Alum

N/A

2.13/1.75

N/A

66/56

140/112

203/145

248/182

269/193

279/197

276/200

TA Performance Stage 1 Ported Jim Weise Alum

N/A

2.13/1.755

N/A

74/60

152/126

221/174

274/205

314/228

314/230

315/230

TA Performance Stage 1 Base Alum

N/A

2.13/1.755

N/A

280/200

TA Performance Stage 1 Ported Alum

N/A

2.13/1.755

N/A

350/205

TA Performance Stage 2 Alum

N/A

2.13/1.75

N/A

300/240

TA Performance Stage 2 Ported Alum

N/A

2.13/1.75

N/A

350/260

TA Performance Ported Alum

N/A

2.125/1.75

N/A

315/230

TA Performance Stage 3 Alum

N/A

2.25/1.80

330/255

TA Performance Stage 3 Ported Alum

N/A

2.30/1.80

385/270

TA Performance Stage 3 Ported Alum

250/-

2.225/1.81

N/A

350/233

360/263

TA Performance Stage 3 Alum Ported Bruce Kent

N/A

2.225/1.80

N/A

330/255

385/295

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance Stage 4 Alum

N/A

2.25/1.80

325/230

TA Performance Stage 4 Alum

N/A

2.25/1.80

N/A

375/265

TA Performance Stage 4 Alum

N/A

2.25/1.80

N/A

76/65

147/129

218/179

266/222

321/247

362/260

TA Performance Stage 4 Ported Alum

N/A

2.30/1.80

395/270

TA Performance Stage 4 Ported Alum

N/A

2.20/-
4.40

N/A

74/-

154/-

225/-

281/-

335/-

369/-

378/-

TA Performance Stage 4 Ported Alum

N/A

2.26/-
4.40

N/A

70/-

140/-

204/-

269/-

325/-

360/-

385/-

Cadillac

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.850

Average

Cadillac MTS Iron

N/A

55/41

96/58

147/110

195/126

225/137

240/143

Cadillac Ported MTS Iron

N/A

68/57

137/105

191/137

243/175

268/192

285/204

286/208

288/210

Cadillac 902 '69

200/145

1.96/-

83/73

134/107

180/140

215/164

248/181

263/191

277/206

Cadillac Ported Potter Automotive Iron

N/A

2.19/1.84

320/240

Cadillac

185/124

2.00/1.625

119/87

162/129

214/149

237/160

240/162

Cadillac 493 '75

185/124

2.00/1.625

120

68/67

130/97

190/132

215/160

233/172

246/-

Cadillac 493 '75 Pocket Ported

N/A

2.00/1.625

N/A

94/80

148/124

186/150

217/173

246/183

255/189

Bulldog Performance Alum

N/A

71/57

136/102

171/140

230/170

270/193

294/209

296/216

286/222

Bulldog Performance Alum

N/A

2.19/1.84

88/63

146/110

203/145

242/178

276/202

296/224

Bulldog Performance Alum

260/-

2.19/1.84

65/61

125/117

178/159

238/203

285/219

307/235

302/242

Bulldog Performance Ported CPP Alum

N/A

2.19/1.77

360/-

Bulldog / MTS Ported Alum

N/A

2.25/1.86

N/A

345/268

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.850

Average

MTS Alum

N/A

2.19/-
4.35

N/A

78/-

135/-

178-

222/-

258/-

274/-

MTS Ported Alum

N/A

2.19/-
4.35

N/A

88/-

136/-

193/-

244/-

281/-

318/-

336/-

338/-

MTS Ported Stage 3 Alum

N/A

2.19/1.84

N/A

73/63

133/114

192/157

246/189

299/215

330/236

341/250

327/258

MTS CNC highport hand finished JC Alum

N/A

2.25/-
4.35

N/A

80/-

137/-

195/-

251/-

305/-

340/-

359/-

375/-

403/-

Cadillac Performance Parts Alum

295/-

2.275/1.80

171/109

233/149

296/184

345/221

376/249

391/267

398/278

402/278

_Cadillac Earlier

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

'53 331 ci Norm Schenck / Competition Fuel Systems

N/A

1.75/1.56
3.875
1 3/4" Pipe

N/A

52/45

72/59

93/72

111/86

125/99

140/110

155/118

161/125

164/128

'53 331 ci Pocket Ported Norm Schenck / Competition Fuel Systems

N/A

1.75/1.56
3.875
1 3/4" Pipe

N/A

55/45

86/63

108/81

133/101

155/115

165/127

173/136

180/142

185/147

Northstar

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

4.0 CHRFAB

N/A

33mm/29mm

N/A

26/30

75/68

111/94

144/109

171/119

193/126

207/131

212/134

215/138

217/142

4.6 CHRFAB

N/A

33mm/29mm

N/A

39/29

81/67

122/98

157/123

186/134

208/141

218/146

219/150

222/153

225/154

4.6 Ported CHRFAB

N/A

33mm/29mm

N/A

40/29

83/59

124/92

159/121

190/137

218/150

239/160

255/176

266/183

273/187

Chevy

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Bow Tie

171/-

2.02/1.60

N/A

212/145

211/147

Chevy Bow Tie

178/-

N/A

221/138

Chevy Bow Tie 034 Meaux Racing Out of Box SF600 Iron

N/A

2.02/1.60
4.00
Pipe

N/A

119/108

171/140

206/146

230/147

217/149

219/149

Chevy Bow Tie 034 Ported Meaux Racing SF600 Iron

223/-

2.085/1.585
4.00
No Pipe

N/A

134/107

195/150

241/201

275/216

293/222

303/224

311/224

317/225

Chevy Bow Tie 034 Ported Meaux Racing Larger Bore SF600 Iron

223/-

2.085/1.585
4.125

N/A

138/107

199/150

246/201

279/216

296/222

307/224

316/224

322/225

Chevy Bow Tie Tri-Mark Iron

178/-

2.02/1.60

N/A

67/58

125/90

180/125

218/135

220/142

216/147

Chevy Bow Tie Tri-Mark Ported Stealth Iron

178/-

2.02/1.60

N/A

68/60

134/117

192/152

228/165

238/170

243/176

Chevy Bow Tie Tri-Mark Ported Super Stealth Iron

178/-

2.02/1.60

N/A

72/60

142/115

195/155

236/170

246/175

252/181

Chevy Bow Tie 2

N/A

250/174

Chevy Bow Tie Phase II Iron CCM

184/55

63/57

130/100

177/119

205/123

225/123

210/127

209/127

Chevy Bow Tie Vortec 185 CHW

185/64

2.00/1.55
-
No Pipe

62/49

123/96

172/124

214/137

233/144

227/148

228/153

Chevy Bow Tie Vortec 206 CHW

206/77

2.00/1.55
-
No Pipe

61/50

127/99

177/123

216/140

227/148

233/155

235/159

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 083 NPS Iron

N/A

1.94/1.50
4.016
No Pipe

N/A

57/48

113/99

156/133

178/140

187/141

187/143

Chevy 186 Fuelie Iron

161/65

2.02/1.60

60/38

113/76

159/110

182/125

187/135

188/140

Chevy 291 3-angle VJ Meaux Racing SF600 Iron

N/A

1.94/1.50
4.00
Pipe

N/A

100/88

155/124

189/142

191/142

193/146

Chevy 291 Bowl Ported exhaust Cleanup trmnatr Iron

N/A

2.02/1.60
4.00
No Pipe

N/A

60/53

125/101

181/138

216/163

227/183

227/190

Chevy 291 SS trmnatr Iron

162/65

1.94/1.50
4.06
No Pipe - Stahl 1/2" Adaptor

57.5

127/106

187/141

225/167

244/185

249/194

253/198

256/200

Chevy 292 Bill Jones Iron

N/A

2.02/1.60
-
No Pipe

N/A

61/56

120/98

164/123

190/130

206/132

212/119

Chevy 292 Ported Bill Jones Iron

N/A

2.06/1.635
-
No Pipe

N/A

68/57

141/117

189/171

222/189

245/201

256/207

Chevy 292 Ported Butch Elkins Iron

197.4/-

2.02/1.625

N/A

137/110

196/157

235/185

253/194

267/198

Chevy 292 Ported Lee Shepard SF600 Iron

N/A

2.04/1.60
4.00
Pipe

N/A

126/128

193/184

234/218

258/230

269/236

274/239

Chevy 292 Ported Rons Porting Service SF600 Iron

N/A

2.04/1.60
4.00
Pipe

N/A

118/120

173/157

210/183

240/218

261/224

274/227

Chevy 292 Ported MadCap Racing Heads SF600 Iron

194/-

2.035/1.60
4.00
Pipe

N/A

122/115

170/154

213/193

243/216

261/222

266/221

Chevy 292 Ported Meaux Racing SF600 Iron

197/-

2.055/1.60
4.00
Pipe

N/A

130/119

186/166

228/213

258/245

271/256

280/257

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 292 Ported Meaux Racing SF600 Iron

209.6/-

2.055/1.60
4.00
Pipe

N/A

132/119

188/163

233/207

263/237

274/251

285/262

Chevy 292 Ported Meaux Racing SF600 Iron

213/-

2.08/1.60
4.00
Pipe

N/A

129/-

188/-

236/-

270/-

285/-

298/-

Chevy 292 Ported Joe Sherman Iron

N/A

2.08/1.60

N/A

204/141

234/177

261/202

281/214

288/217

291/217

Chevy 416 Iron

165/59

1.84/1.50

Chevy 416 Bill Jones Iron

N/A

1.72/1.50
-
No Pipe

N/A

179/127

Chevy 416 Mild Ported Bill Jones Iron

N/A

1.72/1.50
-
No PIpe

N/A

197/172

Chevy 416 Meaux Racing Iron

N/A

1.84/1.50
4.00

N/A

99/90

144/118

175/132

185/137

184/137

186/137

Chevy 416 Ported Meaux Racing SS Iron

N/A

1.84/1.50
4.00

N/A

99/98

153/136

197/170

225/183

231/188

235/192

235/196

Chevy 434 Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

67/54

126/104

175/126

209/132

213/134

216/133

216/134

Chevy 441 Iron CHP

155/62

1.94/1.50
-
No Pipe

55/45

110/80

160/112

194/127

201/136

203/139

Chevy 441 Iron CHP

155/62

1.94/1.50
-
Pipe

55/45

110/83

160/118

194/133

201/146

203/148

Chevy 461 Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

66/55

131/108

185/137

222/162

240/174

236/176

234/175

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 461 Iron

161/63

2.02/1.60

216/137

Chevy 461 Ported Iron

N/A

2.02/1.60
4.06

N/A

94/65

152/102

183/126

210/147

224/162

232/172

238/180

Chevy 461 Ported Creative Flow Management Iron

N/A

2.02/1.60
4.03
No Pipe

N/A

79/61

140/110

189/160

231/188

262/203

274/212

263/213

Chevy 461 Ported SS (Oval) Iron

165/65

2.02/1.60

M/A

260/200

Chevy 461X 3-angle VJ Meaux Racing SF600 Iron

173.5/-

1.94/1.50
4.00
Pipe

N/A

100/88

155/124

189/142

191/142

193/146

Chevy 461X C/ED Ported Meaux Racing SF600 Iron

N/A

2.055/1.60
4.00
Pipe

N/A

131/116

188/153

230/194

260/212

273/245

282/253

Chevy 462 Iron CCM

157/64

1.94/1.50
-
No Pipe

50/54

119/88

167/116

198/128

212/134

218/137

Chevy 462 Iron CCM

157/64

1.94/1.50
-
Pipe

50/54

119/91

167/121

198/134

212/139

218/142

Chevy 462 Bill Jones Iron

N/A

1.94/1.50
-
No Pipe

N/A

58/50

121/94

169/124

192/131

197/135

206/137

Chevy 462 Kendrick Auto

N/A

2.02/1.60

N/A

84/56

130/104

166/125

196/136

214/141

215/144

Chevy 462 Pocket Ported Kendrick Auto

N/A

2.02/1.60

N/A

81/55

127/109

169/136

202/159

223/179

226/187

Chevy 487X Chamber Bowl work VJ Brian W SF600 Iron

N/A

2.02/1.60
4.155

N/A

62/53

137/100

145/129

210/144

222/145

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 487X Chamber Bowl some Port work VJ Meaux Racing SF600 Iron

N/A

2.055/1.60
4.00
Pipe

N/A

138/111

201/161

225/195

236/219

242/225

243/227

Chevy 492 Meaux Racing Out of Box SF600 Iron

N/A

2.02/1.60
4.00
Pipe

N/A

115/105

165/132

196/138

209/143

207/147

210/147

Chevy 492 Cast Heads Iron

157/62

2.02/1.60

69/57

130/107

173/125

198/137

206/141

209/141

Chevy 492 Ported Cast Heads Iron

N/A

2.02/1.60

N/A

62/56

129/109

180/141

217/166

238/174

244/181

246/185

Chevy 492 Tri-Mark Iron

161/-

2.02/1.60

69/57

129/108

172/124

196/141

207/142

210/143

Chevy 492 Ported Tri-Mark Stealth Iron

169/-

2.02/1.60

68/58

141/113

192/145

218/162

234/167

240/170

Chevy 882 Iron CCM

151/59

1.94/1.50
-
No Pipe

70/58

125/108

175/135

204/141

205/142

206/142

Chevy 882 Iron CCM

151/59

1.94/1.50
-
Pipe

70/59

125/109

175/136

204/143

205/144

206/145

Chevy Fast Burn 4298 GM Alum

202/78

2.00/1.55

62/55

136/104

187/133

232/158

266/180

275/193

Chevy Fast Burn 4298 Bob

202/78

2.00/1.55

N/A

133/98

183/129

225/150

254/171

244/179

248/184

Chevy Fast Burn Dr Js Performance

N/A

2.00/1.55

N/A

70/51

136/101

188/140

224/167

237/189

236/200

237/207

Chevy Fast Burn CNC Dr Js Performance

N/A

2.00/1.55

N/A

70/51

138/101

194/134

236/178

265/202

278/220

284/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Fast Burn Harry CNC Alum

215/76

2.00/1.55

62/55

136/104

187/133

232/158

266/180

275/193

Chevy Fast Burn 7712 Out of Box Meaux Racing SF600 Alum

210/-

2.00/1.55
4.125
No Pipe

134/111

177/124

205/149

223/166

234/177

237/182

Chevy Fast Burn Off ZZ383 Out of Box Smithberg Racing Alum

210/78

2.00/1.55
4.03

64/-

134/-

191/-

234/-

266/-

253/-

Chevy Fast Burn Off ZZ383 VJ 2.02 Int Smithberg Racing Alum

210/78

2.02/-
4.03

N/A

72/-

148/-

191/-

236/-

270/-

259/-

Chevy Fast Burn Off ZZ383 Ported Smithberg Racing Alum

210/78

2.02/-
4.03

70/-

140/-

199/-

249/-

286/-

296/-

299/-

Chevy Turbo

N/A

201/177

Chevy L83 462624 Jonas

158/-

1.94/1.50

44/41

101/82

155/125

182/137

196/140

Chevy L98 113 Alum

163/58

1.94/1.50

62/-

116/-

161/-

185/-

195/-

198/-

Chevy L98 113 Alum

163/58

1.94/1.50

62/53

115/101

159/134

189/157

190/171

Chevy L98 Weingartner Racing Alum

N/A

1.94/1.50
4.125
No Pipe

N/A

60/70

114/108

174/152

199/152

205/166

207/168

Chevy L98 113 Ported Precision Motorsports Alum

N/A

2.02/-

N/A

87/-

144/-

180/-

218/-

235/-

243/-

Chevy L98 113 CNC TPIS Alum

N/A

2.00/1.56

55/40

122/112

193/154

242/181

270/197

262/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L98 Alum

163/58

1.94/1.50

120/100

163/129

189/148

199/164

199/167

Chevy L98 Alum

163/58

1.94/1.50
-
No Pipe

N/A

56/49

120/96

160/123

186/140

196/155

199/157

Chevy L98 Hutter Alum

173/-

1.94/1.50

139/110

190/145

229/175

243/190

246/196

Chevy L98 CNC Chapman Alum

185/66

2.00/1.56
-
No Pipe

61/52

121/109

172/149

216/182

252/192

Chevy L98 Ported ET Performance Alum

184/-

2.00/1.55
4.03

62.5

67/52

129/104

187/146

228/175

242/188

247/193

Chevy Vortec Iron CHP

170/-

1.94/1.50

66/57

129/101

186/136

219/149

216/155

Chevy Vortec Ported Chad Speier Iron

200/-

2.055/1.60

N/A

71/50

147/113

204/183

245/183

270/205

276/220

279/228

282/232

Chevy Vortec 062 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

73/61

144/113

202/145

236/158

233/162

233/165

Chevy Vortec 906 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

76/54

137/106

199/139

239/152

240/157

241/159

Chevy Vortec 906 NPS Iron

N/A

1.94/1.50
4.016
No Pipe

N/A

62/43

125/89

178/119

207/130

225/134

222/136

Chevy Vortec 906 Meaux Racing SF600 Iron

170/-

1.94/1.50
4.00

N/A

121/98

179/124

219/137

221/146

223/152

Chevy Vortec 906 Meaux Racing 3 Angle VJ and clean up SF600 Iron

170/-

1.94/1.50
4.00

N/A

134/107

187/142

223/157

221/163

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Vortec 906 Ported Meaux Racing Level 2 SF600 Iron

N/A

2.055/1.60
4.00
No Pipe

N/A

144/119

192/170

236/195

264/207

265/213

271/216

Chevy Vortec 906 CHW Iron

170/64

1.94/1.50
-
No Pipe

63/44

127/93

178/125

212/140

229/144

224/146

223/147

Chevy Vortec 906 Ported CHW Iron

178/64

2.05/1.60
-
No Pipe

70/61

143/115

193/139

230/165

251/170

241/177

235/180

Chevy Vortec 906 Ported Smithberg Racing Street Bowl SSR work Iron

178/65

2.00/1.56
4.03
No Pipe

67/52

140/104

200/143

245/165

250/184

252/190

Chevy Vortec Scoggin-Dickey 170 Iron CHP

170/A

1.94/1.50

57/40

123/100

174/139

212/153

210/160

207/162

Chevy Vortec Scoggin-Dickey 180 Iron CHP

180/-

2.00/1.55

71/53

139/102

182/131

224/146

248/161

240/165

Chevy Vortec L30 059

N/A

1.84/1.50

N/A

68/47

128/103

179/138

205/152

221/163

Chevy Vortec L31 Iron

170/61

1.94/1.50

58/43

114/88

173/125

216/143

225/149

222/152

Chevy Vortec L31 885 Iron CCM

170/61

1.94/1.50
-
No Pipe

70/48

138/101

190/129

227/140

239/147

229/151

Chevy Vortec L31 885 Iron CCM

170/61

1.94/1.50
-
Pipe

70/49

139/105

190/137

227/151

239/160

229/162

Chevy Vortec L31 885 Ported Iron CHP

N/A

1.94/1.50

N/A

60/50

128/101

193/162

224/181

239/181

Chevy Vortec L31 Tri-Mark Iron

168/-

1.94/1.50

67/51

129/98

183/133

218/146

217/151

216/152

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Vortec L31 Tri-Mark Ported Stealth Iron

173/-

1.94/1.50

N/A

68/58

134/117

192/145

224/146

232/170

238/171

Chevy Vortec L31 Tri-Mark Ported Super Stealth Iron

184/-

1.94/1.50

N/A

67/60

142/115

198/155

236/170

246/175

251/181

Chevy Vortec Ported McCoy

N/A

266/200

Chevy Vortec / Bow Tie 421 Small Port Iron

175/65

2.00/1.55

225/152

235/161

236/163

Chevy Vortec / Bow Tie 431 Large Port Iron

206/77

2.00/1.55

268/164

Chevy Vortec / Bow Tie Small Port Bob Iron

175/64

2.00/1.55

N/A

67/53

136/100

182/128

223/145

251/152

240/164

240/166

Chevy Vortec / Bow Tie Large Port Bob Iron

206/77

2.00/1.55

N/A

63/50

133/100

182/134

228/154

258/168

255/168

261/169

Chevy Vortec / Bow Tie Large Port Iron

215/84

2.00/1.55

Chevy 364 18 Deg 248 RCR Super Truck Alum

248/-

2.14/1.60

147/100

231/167

287/205

324/237

338/251

343/257

Chevy 580 18 Deg 245 RCR Super Truck Alum

245/-

2.15/1.625

54/65

148/124

223/180

281/223

325/238

343/244

346/247

Chevy 364 / 580 18 Deg 236 CNC Chapman Alum

236/-

2.135/1.625
-
No Pipe

52/65

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Chevy 364 / 580 18 Deg 246 CNC Chapman Alum

246/-

2.15/1.625
-
No Pipe

52/65

68/52

159/112

227/175

281/218

319/235

333/247

342/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 364 / 580 18 Deg 256 CNC Chapman Alum

256/-

2.18/1.625
-
No Pipe

52/66

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Chevy 364 / 580 18 Deg 266 CNC Chapman Alum

266/-

2.18/1.625
-
No Pipe

52/66

71/51

151/114

226/180

271/213

323/240

353/248

358/255

363/260

Chevy 364 / 580 18 Deg 249 Ported Hutter Alum

249/-

2.15/1.625

53/64

151/117

232/163

293/224

322/244

343/254

347/261

Chevy 18 Deg Ported ET Performance Alum

257/-

2.15/1.60
4.03

N/A

74/49

159/114

231/177

288/219

323/238

341/246

Chevy 18 Deg 247RS CNC Chapman Alum

247/105

2.15/1.625
-
No Pipe

47.5

72/51

157/114

228/180

278/213

317/240

338/248

342/255

346/260

Chevy 18 Deg 255RS CNC Chapman Alum

255/105

2.18/1.625
-
No Pipe

47.5

71/51

150/114

226/180

277/213

323/240

347/248

351/255

354/260

Chevy 18 Deg 270RS CNC Chapman Alum

270/105

2.18/1.625
-
No Pipe

47.5

71/51

151/114

226/180

271/213

323/240

353/248

358/255

363/260

Chevy 18 Deg 235 CNC M2 Race Systems Alum

235/-

2.15/1.625
4.03

219/182

277/238

320/254

340/262

337/268

Chevy 18 Deg 255 CNC M2 Race Systems Alum

255/-

2.18/1.625
4.03

220/182

279/238

320/254

351/262

360/268

Chevy 18 Deg 270 CNC M2 Race Systems Alum

270/-

2.18/1.625
4.03

211/172

272/213

315/236

352/247

375/254

381/262

Chevy 18 Deg CNC Alum

N/A

2.20/1.625

N/A

72/55

151/111

220/158

275/218

317/237

353/250

367/256

371/262

Chevy 15 Deg CNC Alum

N/A

2.15/1.625

N/A

72/53

154/111

227/152

227/209

326/240

349/253

353/259

358/262

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 15 Deg CNC M2 Race Systems

245/-

2.18/1.625
4.03

Chevy 615x 15 Deg 261 CNC Chapman Alum

261/100

2.18/1.625
-
No Pipe

69/52

149/110

215/173

278/215

329/236

363/249

379/258

391/261

Chevy 615 15 Deg CNC Rons Porting Service Alum

278/-

2.18/1.625

158/119

227/170

287/214

335/245

360/260

366/270

372/274

Chevy 15X 15 Deg 246 CNC Slawko Alum

246/102

2.15/1.60

348/265

350/267

Chevy / GM Splayed Valve 12 Deg MBE Port

N/A

2.23/1.55
4.155
No Pipe

N/A

140/102

221/150

294/186

354/232

398/266

414/273

415/280

425/278

427/-

Chevy / GM Splayed Valve 10 Deg MBE Port

N/A

-
-
No Pipe

N/A

436/-

Chevy 517 Canted Valve CNC Chapman Alum

294/-

2.18/1.625
-
No Pipe

71/54

157/114

236/179

299/224

331/239

355/249

371/255

375/258

Chevy Canted Valve Ported ET Performance Alum

285/-

2.185/1.625
4.155

35-72

64/47

148/100

228/142

318/183

375/214

402/237

414/250

419/258

422/263

Chevy Canted Valve Ported Meaux Racing SF600 Alum

N/A

2.20/1.55
4.125
No Pipe

N/A

140/99

213/150

287/192

335/228

370/250

387/261

398/267

Chevy Canted Valve 10 Deg Pro Stock Truck '01 - Darin Morgan Alum

N/A

2.23/-
4.20

145/-

215/-

285/-

356/-

400/-

415/-

425/-

435/-

442/-

Chevy / GM SB2.2 011 278 Ported GPTech Busch Alum

278/-

2.17/1.625

152/104

235/164

300/202

348/233

379/249

373/258

Chevy / GM SB2.2 011 282 Ported GPTech Alum

282/-

2.18/1.625

141/97

226/147

302/188

355/224

384/252

390/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy / GM SB2.2 011 275 Ported Neal Alum

275/-

2.15/1.60

148/109

235/148

292/200

335/221

351/238

356/253

Chevy / GM SB2.2 011 282 Ported Neal Alum

282/-

2.15/1.625

136/104

217/139

288/180

335/219

352/237

352/246

Chevy / GM SB2.2 011 287 Ported Neal Alum

287/-

2.17/1.60

143/95

222/137

293/180

340/213

374/230

388/243

Chevy / GM SB2.2 Ported ET Performance Alum

N/A

2.215/1.60
4.155

N/A

76/56

151/114

229/169

300/214

363/240

390/250

397/254

400/255

Chevy / GM SB2.2 267 CNC Chapman Alum

267/-

2.17/1.625
-
No Pipe

70/52

159/112

238/171

301/207

347/233

367/249

369/259

373/262

Chevy / GM SB2.2 292 CNC Chapman Alum

292/-

2.17/1.625
-
No Pipe

65/52

145/113

236/173

307/207

367/233

385/249

389/259

391/262

Chevy / GM SB2.2 Drag MBE Port 1 Alum

312/-

2.19/1.59
4.15
No Pipe

N/A

70/45

156/101

240/139

320/188

377/230

413/255

426/266

439/272

Chevy / GM SB2.2 Drag MBE Port 2 Alum

312/-

2.19/1.59

N/A

450/-

Chevy / GM SB2.2 Drag MBE Port 3 I-55 E-55 SF600 Alum

312/-

2.18/1.60
4.155
No Pipe

N/A

61/50

142/107

224/145

305/191

364/230

406/257

428/270

437/278

442/283

Chevy / GM SB2.2 Hendricks - Meaux Racing SF600 Alum

N/A

2.18/1.60
4.125
No Pipe

N/A

142/107

219/146

289/184

337/211

359/236

355/252

356/263

Chevy / GM SB2.2 Hendricks - Meaux Racing SF600 Alum

N/A

2.20/1.60
4.125
No Pipe

N/A

142/107

219/146

289/184

337/211

355/252

356/263

398/267

Chevy / GM SB2.2 Hendricks - Darin Morgan SF600 Alum

N/A

2.18/1.60
-
No Pipe

N/A

132/90

214/163

299/200

386/240

410/260

425/273

442/278

449/282

451/287

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy / GM SB2.2 DEI - Darin Morgan SF600 Alum

N/A

2.18/1.60
-
No Pipe

N/A

158/101

231/142

310/180

365/212

392/244

397/263

404/269

Chevy / GM SB2.2 NASCAR '02 - Darin Morgan Alum

N/A

2.18/-
4.185

161/-

236/-

312/-

371/-

402/-

405/-

412/-

415/-

418/-

Chevy / GM SB2.2 NASCAR '05 - Darin Morgan Alum

N/A

2.18/-
4.185

145/-

225/-

300/-

375/-

415/-

426/-

443/-

451/-

453/-

Chevy / GM SB2.2 Darin Morgan Alum

N/A

2.20/-
4.20

152/-

226/-

305/-

375/-

418/-

429/-

446/-

453/-

456/-

Chevy / GM SB2.2 Comp Elim - Darin Morgan Alum

N/A

2.07/-
4.00

29.5

136/-

227/-

287/-

348/-

360/-

371/-

382/-

384/-

388/-

Chevy / GM SB2.2 CNC RFD Alum

N/A

2.20/1.58

N/A

64/61

140/115

228/159

312/198

368/229

402/253

418/265

429/276

436/283

Chevy / GM SB2.2 CNC RFD Alum

N/A

2.20/1.58

156/109

240/145

322/200

376/231

417/262

422/273

441/280

453/282

Chevy / GM ROx 667 Weld Tech Alum

288/-

2.18/1.61

147/119

224/174

293/213

336/241

373/254

382/262

386/265

Chevy / GM RO7 - Darin Morgan SF600 Alum

N/A

2.18/-

N/A

143/-

221/-

307/-

372/-

408/-

428/-

446/-

453/-

459/-

AeroHead Iron CHP

178/70

1.94/1.50

60/48

116/101

162/141

219/171

225/185

226/188

AFR 180 Street Old SF600 Alum

180/-

2.02/1.60
4.06
1 3/4" Pipe

68-74

129/108

195/156

240/178

255/190

260/194

AFR 180 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

144/102

206/152

245/190

260/204

268/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 180 Street SF600 Alum

180/-

2.02/1.60
4.06
1 3/4" Pipe

65-75

138/110

198/158

240/190

260/207

AFR 180 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

65-75

142/115

203/165

247/200

270/217

AFR 190 Alum CCM

N/A

2.02/1.60

N/A

71/67

144/121

208/157

244/188

262/202

261/211

AFR 190 Vortec Alum

190/64

2.02/1.60
4.06
1 3/4" Pipe

135/110

213/158

253/190

276/207

AFR 190 Street SF600 Alum

190/64

2.02/1.60
-
No Pipe

68-74

129/108

195/156

240/178

260/190

262/194

AFR 190 Comp SF600 Alum

N/A

2.02/1.60

135/110

201/157

243/180

264/195

276/208

AFR 195 OLD Out of Box Weingartner Racing Alum

195/-

2.02/1.60
4.125
No Pipe

N/A

73/53

146/108

210/150

258/176

279/186

273/191

275/192

279/193

AFR 195 Street SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

68-74

132/108

198/156

240/178

260/190

262/194

AFR 195 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

135/110

201/157

249/180

275/195

280/208

AFR 195 Eliminator Street SF600 Alum

195/-

2.05/1.60

137/110

194/158

240/190

270/207

286/215

AFR 195 Eliminator David Vizard Alum

195/65

2.05/1.60

75/57

139/113

198/160

250/190

277/207

292/216

295/220

AFR 195 Eliminator Comp SF600 Alum

195/-

2.08/1.60

140/115

202/165

248/200

280/217

300/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 195 Eliminator Comp Out of Box Hemphill Racing SF600 Alum

195/-

2.08/1.60
4.04
No Pipe

65/53

150/116

211/175

255/208

285/219

305/219

AFR 195 Eliminator Street V2 SF600 Alum

195/64

2.05/1.60
4.06
1 3/4" Pipe

55/65

146/119

201/166

247/197

275/213

AFR 195 Eliminator Comp V2 SF600 Alum

195/64

2.08/1.60
4.06
1 3/4" Pipe

65/75

151/125

211/172

260/207

293/224

308/233

AFR 210 Eliminator #1103 Chad Speier Alum

N/A

2.08/-
4.155

N/A

141/-

200/-

249/-

285/-

300/-

294/-

290/-

AFR 210 Eliminator Dr Js Performance Alum

N/A

2.10/1.625
-
1 3/4" Pipe

N/A

70/57

147/112

201/157

245/190

266/201

267/206

267/210

AFR 210 Eliminator CNC Dr Js Performance Alum

N/A

2.10/1.625
-
1 3/4" Pipe

N/A

76/58

148/117

203/165

252/210

286/234

304/250

315/258

AFR 210 Race Old SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

197/145

245/185

273/205

282/215

285/220

AFR 210 Race Old Meaux Racing Alum

N/A

2.08/1.60
-
No Pipe

N/A

140/110

198/152

247/178

284/192

289/197

296/201

294/203

AFR 210 Race Old Ported Meaux Racing Alum

N/A

2.08/1.60
-
No Pipe

N/A

161/119

218/159

262/188

293/203

307/208

312/213

315/215

316/216

AFR 210 Street SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

139/110

199/158

249/192

279/210

295/220

301/224

AFR 210 Comp SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

147/120

206/166

257/214

290/225

308/235

312/240

AFR 210 CNC Meaux Racing Out of Box Alum

210/80

2.08/1.60
4.00
No Pipe

N/A

130/115

185/154

233/182

270/196

280/205

284/212

283/216

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 210 CNC Out of Box Alum

210/80

2.08/1.60

N/A

144/118

202/167

249/198

278/207

284/210

280/212

AFR 210 CNC Out of Box Weingartner Racing Alum

210/-

2.08/1.60
4.125
No Pipe

N/A

70/55

140/111

199/150

248/185

276/206

282/216

291/221

289/224

AFR 210 massaged Chad Speier Alum

208/-

2.08/1.6125

161/119

218/159

262/188

293/203

307/208

312/213

315/215

316/216

AFR 210 Race V2 SF600 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

145/110

199/158

255/192

292/210

309/220

AFR 210 Comp V2 SF600 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

147/120

201/166

257/214

296/225

318/235

AFR 220 Race SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

132/112

190/145

248/185

280/205

286/215

292/220

AFR 220 Comp SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

198/150

255/190

290/207

298/220

303/230

AFR 220 Eliminator Comp SF600 Alum

220/-

2.10/1.60

150/126

207/178

260/215

296/236

322/247

331/251

AFR 220 Eliminator Comp Out of Box Meaux Racing SF600 Alum

220/-

2.10/1.60
4.125
No Pipe

N/A

145/117

195/171

244/207

283/223

303/230

304/233

303/235

AFR 220 Eliminator Race Alum

220/-

2.10/1.60
4.125
1 7/8" Pipe

65-75

155/116

210/162

260/204

295/220

312/229

AFR 220 Eliminator Comp Alum

220/-

2.10/1.60
4.125
1 7/8" Pipe

65-75

145/120

207/166

263/214

299/225

324/240

329/245

AFR 227 Race Old SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

135/112

192/145

250/185

288/205

292/215

295/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 227 Comp Old SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

138/112

207/150

258/190

294/207

302/220

309/230

AFR 227 Street 60/40 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

148/114

210/162

259/204

292/220

305/229

AFR 227 Comp 60/40 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

153/120

214/167

265/214

298/230

315/238

AFR 227 Comp 60/40 Out of Box Alum

N/A

2.10/1.60
-
No Pipe

N/A

154/114

208/165

264/205

304/223

325/232

AFR 227 Eliminator CNC Out of Box Weingartner Racing Alum

210/-

2.10/1.60
4.125
No Pipe

N/A

75/61

160/123

217/170

269/208

303/220

322/227

321/233

322/234

AFR 227 Street 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

148/114

210/162

261/204

296/220

312/229

318/237

AFR 227 Comp 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

152/120

212/167

265/214

300/230

319/238

327/243

AFR 235 Eliminator CNC 60/40 SF600 Alum

235/-

2.125/1.60
4.125
1 7/8" Pipe

70-80

159/120

221/175

270/214

305/235

324/247

334/254

340/256

AFR 235 Eliminator CNC Out of Box Weingartner Racing Alum

235/-

2.125/1.60
4.125
No Pipe

79/58

169/117

236/172

274/205

306/221

322/231

333/237

339/241

341/245

AFR 235 Out of Box Dr Js Perfomance Alum

235/-

2.125/1.60
4.155

66/-

144/-

209/-

259/-

290/-

312/-

323/-

329/-

327/-

319/-

AFR 235 Out of Box CHW Alum

235/-

2.125/1.60
-
No Pipe

N/A

72/58

162/110

216/167

260/185

292/205

308/216

319/221

327/224

AFR 23 Deg 215 RR SF600 Alum

215/80

2.10/1.60
4.125
1 7/8" Pipe

150/112

220/150

276/190

308/207

315/220

325/230

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 245 CNC 60/40 Alum

245/80

2.125/1.60

N/A

165/120

232/175

278/214

310/235

330/247

341/252

350/-

AFR 245 Eliminator CNC Alum

245/-

2.125/1.60
4.125
1 7/8" Pipe

70-80

165/128

232/181

278/214

310/235

330/247

341/254

350/256

AFR 18 Deg GM SF600

243/100

147/109

219/160

273/204

319/230

329/246

340/255

AFR 285 15 Deg Alum

285/-

2.16/1.60

50-53

AFR 305 15 Deg I-55 E-55 Alum

305/-

2.20/1.60

50-53

AFR 325 13.5 Deg Alum

325/-

2.236/1.595
-
1 7/8" Pipe

141/114

211/160

286/196

347/225

398/253

438/276

452/298

453/309

AJPE 23 Deg 250

250/-

2.15/1.525
4.03
No Pipe

148/106

221/153

281/193

318/223

328/232

336/238

347/-

AJPE 23 Deg 283

283/-

2.18/1.60
4.125
No Pipe

142/103

221/143

281/205

325/222

347/230

364/238

369/248

374/-

AJPE 18 Deg 250

250/-

2.125/1.60
4.03
No Pipe

N/A

145/114

216/164

267/217

303/243

325/251

336/255

AJPE 18 Deg 270

270/-

2.18/1.60
4.125
No Pipe

N/A

148/114

225/164

275/217

314/243

352/251

356/255

AJPE 18 Deg 279

279/-

2.20/1.625
4.125
No Pipe

N/A

143/111

223/166

278/225

319/245

353/255

368/260

AJPE 12 Deg 280 Weingarter Racing Brez

280/-

2.10/1.625
4.155
No Pipe

N/A

68/46

129/78

201/123

272/167

323/195

354/216

358/231

359/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AJPE 13 Deg Canted Valves Billet

344/114

2.25/1.65
4.125
2.1" Pipe

125/105

196/159

268/216

326/255

375/284

410/305

420/319

All PRO II-13 Ported Jones Engineering Alum

N/A

2.20/1.625

N/A

165/124

245/204

299/248

343/272

364/278

386/292

All PRO RE-13 Ported Jones Engineering Alum

N/A

2.20/1.625

146/110

221/161

291/216

348/239

388/248

408/251

409/253

All PRO RE-13 Ported Jones Engineering Alum

N/A

2.20/1.625

136/101

222/154

295/209

354/239

395/257

415/266

422/273

428/277

All PRO RE-18 Ported Rons Porting Servive Alum

274/-

2.15/1.625

42-57

165/128

239/183

290/236

318/268

341/274

354/280

All PRO RE-15 Ported Alum

N/A

2.19/1.60

N/A

164/128

228/211

281/247

327/268

353/278

369/282

All PRO LM-13 Deg Ported Alum

270/-

2.18/1.60

35-50

155/120

232/180

296/230

340/246

362/255

372/263

All PRO LM-13 Deg Ported Alum

278/-

2.18/1.625

35-50

150/124

232/204

298/248

342/272

367/278

378/292

All PRO 13 Deg CNC MBE Sprint Car Alum

N/A

68/47

135/96

211/152

290/202

344/239

382/259

397/271

406/278

413/280

420/281

All PRO 13 Deg CNC Jones Engineering Alum

282/-

2.18/1.625

147/112

232/164

306/223

351/246

386/252

392/258

All PRO 13 Deg CNC Jones Engineering Alum

292/-

2.20/1.60

150/113

228/164

290/219

339/246

374/256

391/262

396/266

All PRO 305-4 13 Ported Alum

305/-

2.25/1.60

N/A

159/115

223/192

284/239

343/261

382/275

404/283

414/287

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO 13.5 Deg CNC Jones Engineering 75/135 Alum

306/-

2.23/1.60

148/117

231/169

297/218

346/246

378/258

392/265

All PRO 13.5 Deg CNC Jones Engineering 95/150 Alum

306/-

2.23/1.60

138/117

213/169

279/218

333/246

383/258

410/265

418/268

All PRO 272 22 Deg Ported Jones Engineering Alum

278/-

2.18/1.60

149/118

217/172

276/221

321/239

357/246

371/251

All PRO 23 Deg Ported Alum

219/-

2.10/1.60

60-74

151/109

219/165

266/221

288/243

308/250

314/253

All PRO 23 Deg Ported Jones Engineering Alum

242/-

2.125/1.60

156/108

210/169

266/216

311/230

333/238

340/243

All PRO 23 Deg Ported Kelford Cams 360 SprintCar Alum

N/A

2.125/1.625

N/A

88/47

162/104

224/158

268/222

300/239

324/247

331/255

All PRO 23 Deg Ported Rons Porting Service Alum

245/-

2.18/1.625

153/123

212/172

272/210

322/239

358/251

379/258

382/261

All PRO 23 Deg Rolled to 16.8 Deg Ported BES Alum

288/-

2.18/1.625

43.5

114/91

205/176

268/233

314/262

353/286

374/302

381/311

381/317

All PRO 23 Deg RR 245 Ported BES Alum

N/A

2.18/1.625
4.155

N/A

122/112

187/165

250/218

301/248

339/264

362/274

368/279

371/280

Avenger 180 23 Deg Alum

180/72

2.02/1.60

60/68

64/60

128/110

178/150

227/188

258/204

270/215

Avenger 190 23 Deg Alum

190/-

2.02/1.60

60/67

64/61

128/115

181/150

227/190

260/209

277/227

280/231

Avenger 210 23 Deg Alum

210/80

2.055/1.60

60/67

69/61

139/115

194/150

240/190

277/209

299/227

304/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Avenger 15 Deg Alum

290/90

2.18/1.60

61/69

79/62

159/120

223/167

290/218

335/232

361/240

372/248

381/255

BMF 18 Deg 238 CNC Alum

238/90

2.15/1.60

241/178

299/223

340/236

348/243

350/247

351/250

353/251

BMF 18 Deg 248 CNC Alum

248/90

2.15/1.60

239/178

302/223

344/236

352/243

362/247

365/250

365/251

BMF 18 Deg 260 CNC Alum

260/90

2.15/1.60

242/178

300/223

342/236

361/243

369/247

370/250

370/251

BMF 18 Deg CNC OLD Alum

268/90

2.18/1.60

N/A

145/131

208/177

266/215

313/242

338/253

351/260

368/262

BMF 18 Deg 268 CNC Alum

268/90

2.18/1.60

242/178

300/223

342/236

369/243

375/247

379/250

382/251

BMF 18 Deg 268 CNC Out of Box Meaux Racing SF600 Alum

268/90

2.18/1.60
4.125
No Pipe

N/A

149/111

218/158

272/199

317/229

337/241

339/-

343/-

349/265

BMF SBX 4.5 Bore CNC Darin Morgan SF600 Alum

N/A

2.30/1.65
-
No Pipe

N/A

159/-

244/-

319/-

386/-

432/-

447/-

463/-

469/-

478/-

Brodix CARB Legal Alum

170/-

2.02/1.60

132/93

185/134

217/159

215/174

212/180

Brodix 305 Sprint Race Saver Ported Smithberg Racing

N/A

1.94/1.60
3.91
No Pipe

N/A

77/52

151/95

203/132

219/160

234/176

239/184

Brodix SP CH Alum

215/-

2.08/1.60

121/92

176/134

223/158

249/172

261/179

269/182

Brodix DS 225 23 Deg Alum

225/-

2.08/1.60

N/A

142/115

212/154

260/183

287/199

302/204

304/210

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BP HH 23 Deg 40/60 I-50 E-45 Alum

229/-

2.125/1.60

139/122

205/166

257/200

300/219

319/227

325/236

Brodix BP HH RO 225 23 Deg 40/60 I-52 E-55 Alum

225/-

2.15/1.57

N/A

142/103

205/143

259/182

303/206

327/222

335/238

Brodix BP HH RO 234 23 Deg 40/60 I-52 E-55 Alum

234/-

2.15/1.57

N/A

130/103

199/143

258/182

305/206

332/222

345/238

Brodix HH 234 Out of Box Weingartner Racing Alum

234/-

2.15/1.57
4.155
No Pipe

N/A

132/95

186/134

248/176

293/204

318/219

339/229

338/235

335/238

335/-

Brodix -8 STD FSH CARB Legal Alum

185/-

2.08/1.60

134/106

191/135

229/152

233/159

Brodix -8 STD or SP 23 Deg Alum

194/-

2.08/1.60
-
No Pipe

134/109

191/138

230/155

240/161

Brodix -8 PRO 23 Deg Alum

185/-

2.02/1.60
-
No Pipe

134/106

191/135

230/153

240/160

Brodix -8 STD 23 Deg Ported ET Performance Alum

215/-

2.08/1.60
4.155

69/53

136/92

198/175

248/207

283/227

287/237

290/240

Brodix -10 STD or SP 23 Deg Alum

210/-

2.08/1.60

145/109

195/139

240/155

253/161

262/166

262/168

Brodix -10 WP SP RI 23 Deg Jones Engineering 40/60 I-45 E-45 Alum

240/-

2.125/1.60

151/114

223/156

273/207

304/230

324/240

332/245

Brodix -10 WP SP X - 231 23 Deg Alum

231/-

2.10/1.60

152/115

222/167

268/210

297/227

313/230

320/234

Brodix -10 WP SP X - 233 23 Deg Alum

233/-

2.125/1.60

151/115

223/167

269/210

300/227

318/230

329/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -10 WP SP X AP 23 Deg Alum

230/-

2.125/1.60

156/107

218/155

271/194

309/239

336/251

352/258

Brodix -10 CNC Jones Engineering Alum

240/-

2.125/1.60

151/114

223/156

273/207

304/230

324/240

332/245

Brodix -11 STD or SP 23 Deg Alum

221/-

2.08/1.60

132/109

188/138

232/155

260/161

256/166

258/167

Brodix -11 STD X 23 Deg 40/60 Alum

225/-

2.08/1.60

133/90

191/126

235/158

272/184

283/200

285/208

Brodix -11 SP X ASCS/SUPR Alum

215/-

2.08/1.60

130/100

187/132

232/162

265/185

267/201

270/210

Brodix -11 SP X ASCS 3V Performance Alum

N/A

2.08/1.60

N/A

74/67

156/125

212/172

255/193

272/201

280/201

Brodix -11 SP X ASCS Chad Speier Worked Alum

N/A

2.08/1.60

N/A

142/-

211/-

260/-

290/-

299/-

292/-

291/-

Brodix -11 SP X ASCS CNC smeg Alum

N/A

2.08/1.60

N/A

132/-

186/-

235/-

277/-

300/-

309/-

310/-

Brodix -11 SP X 23 Deg 40/60 Alum

225/-

2.08/1.60

133/103

191/137

235/166

272/188

283/201

285/211

Brodix -11 KC SP X 23 Deg 40/60 Alum

231/-

2.10/1.60

146/113

203/149

253/177

293/198

314/228

316/236

Brodix -12 WP SP RI - 247 15 Deg CNC 40/60 Alum

247/-

2.15/1.60

152/120

230/170

284/216

316/233

326/240

330/248

Brodix -12 WP SP RI - 262 15 Deg CNC 40/60 Alum

262/-

2.15/1.60

150/120

228/170

282/216

322/233

330/240

335/248

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -12 WP SP RI MC 15 Deg CNC 58/107 Alum

262/-

2.17/1.60

155/117

224/177

282/218

329/231

335/240

347/247

Brodix -12 KC SP B 15 Deg CNC 40/60 Alum

287/-

2.15/1.60

155/120

230/168

285/216

320/232

343/240

354/247

Brodix -12 STS SP WB MC 15 Deg CNC 70/125 Alum

305/-

2.20/1.60

159/106

233/145

290/190

334/221

361/235

372/247

Brodix -12 15 Deg 288 CNC Chapman Alum

288/-

2.20/1.625
-
No Pipe

58.5

73/51

163/112

238/173

293/219

325/238

362/242

363/251

Brodix -12 RVR 15 Deg Jones Engineering70/125 Alum

285/-

2.18/1.60

152/108

231/149

292/204

339/236

360/245

375/252

375/255

Brodix -12X12 WP SP B - 275 12 Deg CNC Alum

275/-

2.15/1.60

166/112

236/156

293/188

333/237

344/249

346/255

Brodix -12X12 WP SP B - 286 12 Deg CNC Alum

286/-

2.18/1.60

154/112

228/156

289/188

334/237

357/249

360/255

Brodix -12X12 WP SP B - 296 12 Deg CNC Alum

296/-

2.18/1.60

165/112

230/156

291/188

338/237

358/249

376/255

Brodix -12X12 WP SP B - 299 12 Deg CNC Alum

299/-

2.20/1.60

154/119

228/158

290/216

343/245

375/254

388/258

399/263

Brodix -12X12 15 Deg 272 CNC Chapman Alum

272/-

2.18/1.625
-
No Pipe

73/54

160/109

234/171

292/210

330/232

355/241

359/250

368/255

Brodix -12X12 15 Deg 292 CNC Chapman Alum

292/-

2.20/1.625
-
No Pipe

61.5

73/54

151/109

224/171

287/210

337/232

365/241

383/250

393/255

Brodix -13 KC 13 Deg Ported 85/134 Alum

283/-

2.18/1.625

159/113

239/164

307/213

352/236

359/247

364/258

370/263

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix 13 Deg LMD CNC Rons Porting Service I-50 E-45 85/134 Alum

285/-

2.18/1.625

161/126

243/182

308/220

353/248

378/262

382/270

385/275

387/278

Brodix 13 Deg LMD Jones Engineering I-45 E-45 85/134 Alum

282/-

2.18/1.625

158/110

234/156

302/219

349/243

371/260

377/267

385/271

Brodix -15 WP SP / STD 15 Deg Ported 58/107 Alum

267/-

2.18/1.625

156/111

225/164

275/223

327/245

358/254

362/259

Brodix 15 Deg CNC Alum

262/-

2.15/1.60

153/120

228/170

282/216

322/233

332/240

340/252

Brodix 15 Deg CNC Jones Engineering I-45 E-45 Alum

261/-

2.18/1.60

156/111

225/164

275/223

327/245

358/254

362/259

Brodix 15 Deg CNC Rons Porting Service Alum

297/-

2.20/1.60

155/125

230/175

290/210

340/232

375/241

386/251

Brodix -16 KC STD 16 Deg 58/107 Alum

269/-

2.18/1.625

142/119

211/161

277/198

332/233

367/252

379/261

Brodix 16 Deg CNC Jones Engineering I-45 E-45 Alum

267/-

2.18/1.60

161/101

231/149

291/211

337/237

360/253

371/263

375/268

Brodix -18 STD X 18 Deg 40/60 Alum

244/-

2.14/1.60

157/106

212/145

260/179

303/195

319/205

325/211

Brodix -18 STD X 18 Deg M2 Race Systems CNC 40/60 Alum

254/-

2.14/1.60
4.125

145/110

214/154

261/206

303/224

328/231

336/237

Brodix -18 SP X 18 Deg 40/60 Alum

244/-

2.14/1.60

157/122

212/164

260/200

303/217

319/226

325/233

Brodix -18 SP X 18 Deg CNC M2 Race Systems 40/60 Alum

253/-

2.14/1.60
4.125

145/119

214/158

261/196

303/232

328/243

336/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -18 SP X 18 Deg Ported Jason 40/60 Alum

258/-

2.15/1.60

N/A

144/127

203/175

261/216

306/233

334/240

351/245

359/248

Brodix -18 SP 18 Deg 262 CNC Chapman 40/60 Alum

262/-

2.15/1.625
-
No Pipe

72/52

161/108

225/174

273/223

314/246

335/257

348/263

Brodix -18 WP SP C 18 Deg CNC 58/107 Alum

254/-

2.18/1.625

157/112

230/167

280/209

329/227

360/238

367/245

Brodix -18 KC SP C 18 Deg 58/107 Alum

254/-

2.18/1.625

163/119

232/172

288/214

335/233

351/242

360/250

Brodix -18 WP SP C AP 18 Deg CNC 58/107 Alum

266/-

2.18/1.625

154/134

224/175

278/241

328/261

369/270

395/274

Brodix 18 Deg Busch Ported ET Performance Alum

257/-

2.15/1.60
4.03

52.5

74/49

159/114

231/177

288/219

323/238

340/246

Brodix 18 Deg Ported ET Performance Alum

260/-

2.14/1.60
4.155

52.5

71/54

143/106

220/159

283/213

326/239

349/251

356/257

362/264

Brodix 18 Deg CNC Rons Porting Service 262 Alum

262/-

2.18/1.625

156/129

225/188

281/232

331/243

350/248

360/250

362/252

Brodix 18 Deg CNC Rons Porting Service 278 Alum

278/-

2.18/1.625

150/125

220/180

281/224

331/240

362/248

380/251

385/254

Brodix 18 Deg CNC AP Alum

266/-

2.18/1.625

154/113

224/162

278/224

328/241

369/248

395/254

Brodix 18 Deg Ported Meaux Racing SF600 Alum

256/99

2.18/1.625
4.125
No Pipe

48.5

139/124

218/192

281/228

321/246

343/252

351/258

358/262

362/265

Brodix Track 1 Alum CHP

N/A

2.08/1.60

N/A

60/48

115/106

166/147

209/178

246/191

267/200

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix Track 1 Alum

215/-

2.08/1.60

128/111

183/149

229/179

268/193

269/207

Brodix Track 1 227 CNC Out of Box Weingartner Racing

227/-

2.08/1.60
4.125
No Pipe

N/A

70/58

146/114

214/163

268/205

298/221

312/227

318/235

Brodix Track 1 23 Deg Ported Alum

215/-

2.08/1.60

147/110

213/142

258/180

288/213

290/225

294/231

Brodix Track 1 23 Deg CNC M2 Race Systems Alum

215/-

2.08/1.60
4.03

151/116

219/150

263/185

291/208

294/219

296/227

Brodix Track 1 23 Deg CNC M2 Race Systems Alum

227/-

2.08/1.60
4.125

145/116

207/150

260/185

297/208

305/219

309/227

Brodix Track 1 23 Deg Alum

221/-

2.08/1.60

124/103

179/138

228/164

264/178

276/186

279/190

Brodix Track 1 23 Deg Ported BHPerformace Alum

N/A

-
-
No Pipe

N/A

68/60

134/115

198/162

257/192

301/206

318/218

330/227

Brodix Track 1X 23 Deg 40/60 Alum

222/-

2.10/1.60

152/113

213/152

262/173

285/185

287/192

292/195

Brodix Track 1X 23 Deg CNC 40/60 Rons Porting Service Alum

236/-

2.125/1.60

155/119

224/163

279/194

308/210

326/226

331/235

333/242

Brodix Track 1 40/60 Valve Spacing 23 Deg Alum

N/A

2.125/1.60

N/A

138/106

199/145

253/182

294/209

318/224

325/233

Brodix STS Track 1 23 Deg Alum

215/-

2.08/1.60

150/116

213/150

258/185

285/208

303/219

305/227

Brodix KC Track 1 23 Deg Alum

227/-

2.08/1.60

154/116

223/150

270/185

303/208

312/219

316/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix STS Track 1 23 Deg CNC I-50 E-45 40/60 Alum

233/-

2.125/1.60

139/106

200/145

254/181

296/209

319/224

326/233

Brodix JJ 180 23 Deg Alum

180/-

2.02/1.60

138/97

194/129

234/155

243/171

245/179

Brodix JJ 200 23 Deg Alum

200/-

2.05/1.60

125/97

182/129

227/155

260/171

266/179

Brodix JJ 210 CNC 23 Deg Alum

210/-

2.08/1.60

148/110

217/166

260/200

278/214

284/219

287/224

Brodix IK 180 23 Deg Alum

180/-

2.02/1.60

64/70

138/112

188/149

234/167

243/175

245/178

Brodix IK 180 23 Deg PHPerformance Alum

180/-

2.02/1.60

143/112

195/149

227/167

242/175

250/178

251/-

Brodix IK 180 23 Deg Ported PHPerformance Alum

198/-

2.02/1.60
-
No Pipe

71/59

149/128

210/168

262/189

288/198

292/203

290/204

Brodix IK 200 23 Deg Alum

200/-

2.02/1.60

64/70

123/100

181/145

230/164

253/171

261/176

262/177

Brodix IK 200 23 Deg Out of Box Weingartner Racing Alum

200/-

2.02/1.60
4.155
No Pipe

N/A

62/46

125/94

171/134

223/157

235/166

260/172

262/173

Brodix IK 210 23 Deg Ported Alum

210/-

2.08/1.60

148/110

217/166

260/200

278/214

284/219

287/224

Brodix RR 180 23 Deg Alum

180/-

2.02/1.60

64/67

138/97

194/129

234/155

243/171

245/179

Brodix RR 180 23 Deg CNC CC Alum

180/-

2.02/1.60

64/67

142/113

199/153

238/171

241/179

241/184

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix RR 200 23 Deg Alum

200/-

2.055/1.60

64/67

125/97

182/129

227/155

260/171

266/179

Brodix RR 200 23 Deg CNC CC Alum

200/-

2.055/1.60

64/67

141/113

221/153

242/171

265/179

272/183

Brodix CV SP 265 Alum

265/-

2.20/1.60

159/109

232/145

293/188

347/221

379/237

395/244

Brodix CV SP 330 Alum

330/-

2.25/1.60

165/116

243/158

305/193

350/234

376/245

392/254

Brodix 13 Deg CNC Jones Engineering Alum

282/-

2.18/1.60

158/110

234/156

302/219

349/243

371/260

377/267

385/271

Brodix BP AK 13 Deg 270 95/150 Alum

270/-

2.18/1.60

154/110

236/161

298/213

333/238

361/248

376/258

Brodix BP AK 13 Deg 285 95/150 Alum

285/-

2.18/1.60

157/110

239/161

298/213

339/238

369/248

382/258

Brodix WP LM 12 Deg 85/134 Alum

300/-

2.18/1.625

155/111

236/155

305/215

352/243

375/254

384/263

387/270

Brodix FF 13 Deg Ported Jones Engineering 88/184 I-45 E-45 Alum

290/-

2.20/1.60

159/114

238/155

304/194

356/237

377/253

386/260

389/265

Brodix FF 10 Deg Ported Jones Engineering 110/184 Alum

300/-

2.23/1.60

145/104

228/161

304/209

365/238

397/252

401/258

404/264

Brodix BD 1000 12 Deg 275 Weld Tech Alum

275/-

2.15/1.60

166/112

236/156

293/188

333/237

344/249

346/255

Brodix BD 1000 12 Deg 286 Weld Tech Alum

286/-

2.18/1.60

154/112

228/156

289/188

334/237

357/249

360/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BD 1010 12 / 13.5 Deg CNC 58/125 Alum

299/-

2.20/1.60

152/117

229/162

292/220

343/245

375/255

388/260

Brodix BD 1010 12 Deg CNC Jones Engineering 95/150 Alum

282/-

2.18/1.60

153/110

231/162

295/221

342/243

370/252

392/258

399/261

Brodix BD 2000 12 / 13.5 Deg CNC 85/125 Alum

285/-

2.20/1.58

157/109

238/152

302/205

353/232

381/241

399/250

Brodix BD 2000 CNC Out of Box - Darin Morgan SF600 85/125 Alum

N/A

2.20/1.60
-
No Pipe

N/A

168/104

237/141

301/194

344/223

377/237

400/241

397/242

381/244

380/245

Brodix BD 2000 Ported TEA 85/125 Alum

285/-

N/A

73/59

159/115

230/187

290/254

342/277

371/289

391/295

399/301

Brodix BD 2300 13.5 Deg CNC 95/150 Alum

311/-

2.23/1.60

150/113

223/164

275/219

331/246

382/256

401/260

417/267

Brodix BD 2300 13.5 Deg CNC Jones Engineering 95/150 Alum

312/-

2.20/1.60

137/113

226/164

304/219

363/246

394/256

410/262

421/267

Brodix BD 4510 12 Deg 4.5 BS CNC Jones Engineering 95/150 I-45 E-45 Alum

292/-

2.18/1.60

156/107

243/155

311/202

383/234

385/247

399/253

406/255

Brodix WP BD 4510 12 Deg 4.5 BS CNC 88/184 I-45 E-45 Alum

292/-

2.20/1.60

159/114

243/155

307/196

356/229

378/251

390/258

402/263

Brodix WP FF 13 Deg 4.5 BS CNC 88/184 Alum

290/-

2.20/1.60

159/114

238/155

304/194

356/237

377/253

386/260

389/265

Brodix DR 1213 12.5 / 13.5 Deg CNC Jones Engineering Alum

315/-

2.23/1.60

141/105

221/159

295/210

351/237

396/252

421/262

435/268

Brodix 1213 12.5 / 13.5 Deg CNC RFD Alum

318/-

2.25/1.60

N/A

180/155

258/202

314/246

360/276

410/283

421/286

433/288

446/290

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix GB 2000 WP 286 13.5 Deg CNC 85/125 Alum

286/-

2.20/1.58

157/109

238/152

302/205

353/232

381/241

399/250

Brodix GB 2000 13.5 Deg Ported TEA 85/125 Alum

285/-

N/A

78/59

170/115

244/187

304/254

349/277

375/289

387/295

399/301

Brodix GB 2200 WP 282 13.5 Deg CNC 85/125 Alum

282/-

2.20/1.58

150/104

223/158

286/210

336/235

368/246

383/252

Brodix GB 2200 WP 282 + 30 13.5 Deg CNC 85/125 Alum

282/-

2.20/1.58

150/104

224/158

289/210

337/235

371/246

396/252

Brodix GB 2200 13.5 Deg 282 CNC Jones Engineering 85/125 Alum

282/-

2.20/1.58

150/104

223/158

286/210

336/235

368/246

383/252

Brodix GB 2200 13.5 Deg 291 CNC Jones Engineering 85/125 Alum

291/-

2.20/1.58

152/104

228/158

292/210

339/235

373/246

390/252

Brodix GB 2300 WP 309 13.5 Deg CNC 75/125 Alum

309/-

2.20/1.58

153/100

231/151

286/216

342/243

374/250

394/253

Brodix GB 2300 13.5 Deg CNC RFD 75/125 Alum

N/A

2.22/1.60

188/140

255/170

312/240

357/255

399/280

418/284

430/289

439/290

Brodix GB 2300 13.5 Deg CNC M2 Race Systems 75/125 Alum

317/-

2.20/1.58
4.155

74/63

167/135

225/186

280/224

327/240

364/244

388/245

401/245

Brodix GB 2300 13.5 Deg 309 CNC Jones Engineering 75/125 Alum

309/-

2.20/1.58

153/100

231/151

286/216

342/243

374/250

394/253

Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 75/125 Alum

311/-

2.20/1.58

155/121

234/177

296/232

344/245

380/252

395/256

Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 95/150 Alum

311/-

2.23/1.60

150/113

223/164

275/219

331/246

382/256

401/262

417/267

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix GB 2400 13.5 Deg 320 CNC Jones Engineering 95/150 Alum

320/-

2.23/1.60

152/110

227/148

279/200

342/234

390/248

404/254

419/264

Brodix GB 2400 WP 13.5 Deg CNC 75/150 Alum

325/-

2.20/1.58

Brodix GB 2500 13.5 Deg CNC MBE Dirt Alum

N/A

2.20/1.60
-
No Pipe

N/A

63/48

138/101

214/146

284/197

342/231

388/251

411/261

419/270

422/272

425/271

Brodix GB 2500 13.5 Deg CNC MBE I-55 E-55 SF600 Alum

319/-

2.23/1.60
4.155
No Pipe

N/A

133/98

223/146

300/188

357/220

401/248

430/260

445/270

446/273

Brodix GB 2500 12.5 / 13.5 Deg CNC RFD Alum

318/-

2.25/1.60

180/155

258/202

314/246

360/276

410/283

421/286

433/288

446/290

Brodix Canted Valve Ported Bullet Cylinder Heads Alum

N/A

2.20/1.60

N/A

80/92

161/163

228/206

283/219

332/223

366/235

389/240

401/255

411/260

Canfield CCM Alum

195/-

2.02/1.60

61/51

128/103

191/143

238/170

271/189

254/200

Canfield 23-500-65 SF600 Alum

195/-

2.055/1.60
4.03
1 3/4" Pipe

72/53

145/107

201/143

247/175

258/190

259/200

259/203

Canfield 23-550-65 Alum

215/-

2.08/1.60
4.125
Pipe

N/A

62/43

141/112

207/152

255/173

270/184

279/195

283/213

Canfield 23-550-65 Alan / Burtonsville Performance Out of Box SF600 Alum

215/-

2.08/1.60
4.25
No Pipe

N/A

-/50

-/992

-/152

-/149

-/157

-/161

-/164

-/172

Canfield 23-550-65 Minor Pocket Porting Alan / Burtonsville Performance SF600 Alum

215/-

2.08/1.60
4.25
No Pipe

N/A

-/53

-/104

-/162

-/196

-/199

-/197

-/194

Canfield 23-600-65 Alum

220/-

2.08/1.60
-
No Pipe

72/52

145/105

206/146

252/184

288/203

302/219

306/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Canfield 220 Ported Smithberg Racing Alum

N/A

2.08/1.60
4.155

66/-

132/-

197/-

248/-

289/-

308/-

323/-

332/-

337/-

339/-

CGM Motorsports 200 23 Deg CNC SF1020 Alum

200/-

2.02/1.60

N/A

64/57

114/101

161/128

201/152

232/159

251/169

CGM Motorsports 210 23 Deg CNC SF1020 Alum

210/-

2.02/1.60

N/A

71/57

146/101

204/157

250/177

261/186

266/190

276/195

Competition Products Alum CHP

195/60

2.02/1.60

59/50

112/91

152/122

194/152

231/167

256/172

Dart Sportsman II 200 Ported Smithberg Racing Iron

210/-

2.08/1.60
4.155

N/A

72/-

138/-

195/-

239/-

266/-

278/-

287/-

294/-

Dart 165 Iron Eagle

165/-

1.94/1.50

126/108

185/128

221/136

232/138

Dart 165 Iron Eagle

165/65

1.94/1.50
4.03
No Pipe

210/138

Dart 180 Iron Eagle

180/75

2.02/1.60
4.03
No Pipe

65.9

139/114

190/145

218/164

222/172

218/174

Dart 180 Iron Eagle Meaux Racing Out of Box

180/75

2.02/1.60
4.00
No Pipe

N/A

127/102

181/137

212/161

218/175

219/180

Dart 180 Iron Eagle Tri-Mark

180/75

2.02/1.60

N/A

62/63

127/115

180/147

209/163

209/168

209/171

208/176

Dart 180 Iron Eagle Ported Tri-Mark Stealth

N/A

2.02/1.60

N/A

68/61

134/112

188/150

228/170

244/181

248/184

249/190

Dart 180 Iron Eagle Ported Modern Cylinder Head

N/A

2.02/1.60

N/A

68/62

144/108

201/158

238/193

252/201

260/203

249/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 200 Iron Eagle

200/75

2.02/1.60
4.03
No Pipe

65.9

129/114

186/145

229/164

261/172

252/174

Dart 200 Iron Eagle Tri-Mark

200/75

2.02/1.60

N/A

68/63

134/115

186/147

226/163

231/168

231/171

230/176

Dart 200 Iron Eagle Ported Tri-Mark Stealth

N/A

2.02/1.60

N/A

70/61

135/112

194/150

232/170

245/181

253/184

261/190

Dart Iron Eagle CHP

N/A

2.05/1.60

N/A

65/59

129/112

182/139

226/166

258/178

255/187

Dart Iron Eagle 23 Deg CNC Rons Porting Service 220 Alum

220/-

2.05/1.60

152/111

203/149

250/182

288/215

308/229

317/246

Dart Iron Eagle 23 Deg CNC Rons Porting Service 228 Alum

228/-

2.08/1.60

143/111

203/149

251/182

284/215

313/229

326/242

Dart Iron Eagle 23 Deg CNC Rons Porting Service 238 Alum

238/-

2.10/1.60

149/111

212/149

263/182

296/215

314/229

322/242

Dart Iron Eagle 23 Deg CNC Rons Porting Service 248 Alum

248/-

2.10/1.60

146/111

208/149

256/182

294/215

324/229

338/242

Dart 215 Iron Eagle

215/-

2.055/1.60
4.03
No pipe

65.9

127/114

178/145

216/164

249/172

268/174

271/-

Dart 230 Iron Eagle

230/-

2.08/1.60
4.155
No Pipe

65.9

129/115

184/158

231/185

271/199

296/205

308/207

308/-

Dart 230 Iron Eagle Ported Kelford Cams

N/A

2.08/1.60

N/A

73/59

132/127

186/171

239/204

275/224

312/233

319/239

Dart 230 Iron Eagle Out of Box Steve SF600

230/-

2.08/1.60

N/A

64/46

132/95

185/135

227/159

243/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 230 Iron Eagle Ported Steve SF600

N/A

2.08/1.60

N/A

69/50

133/102

195/145

247/177

280/192

Dart 227 Iron Eagle Pro

227/-

2.08/1.60
-
No Pipe

131/96

195/135

248/169

283/193

297/208

304/217

Dart 200 Iron Eagle Platinum SF600

200/-

2.02/1.60
4.03
No Pipe

N/A

130/109

194/158

242/198

274/208

283/214

-/219

Dart 200 Iron Eagle Platinum CNC M2 Race Systems

223/-

2.055/1.60
4.03

N/A

70/40

151/96

198/135

248/175

283/206

301/225

304/233

Dart 200 Iron Eagle Platinum Ported Bullet Cylinder Heads

217/90

2.05/1.60

74/63

144/111

203/161

247/188

282/209

291/218

301/226

Dart 215 Iron Eagle Platinum SF600

215/75

2.05/1.60
4.03
No Pipe

N/A

136/109

193/158

239/198

273/208

289/214

293/219

Dart 215 Iron Eagle Platinum CHP

215/-

2.055/1.60

63/56

132/106

180/133

220/162

251/178

272/182

Dart 215 Iron Eagle Platinum Weingartner Racing Back Cut

N/A

2.055/1.60
4.155
No Pipe

N/A

63/53

141/103

182/139

215/168

241/168

250/197

248/204

235/208

234/208

Dart 215 Iron Eagle Platinum Competition Engines SF600

215/-

2.055/1.60
4.03
No Pipe

N/A

130/102

181/132

221/157

248/175

264/185

268/191

Dart 230 Iron Eagle Platinum SF600

230/75

2.08/1.60
4.15
No Pipe

N/A

138/109

201/158

247/198

280/208

297/214

306/219

Dart 230 Iron Eagle Platinum Out of Box Weingartner Racing

N/A

2.08/1.60
4.125
No Pipe

N/A

66/50

130/115

174/149

226/178

252/192

277/201

281/207

280/211

Dart 215 Platinum Ported Mike Jones Iron

215/-

2.08/1.60

N/A

73/55

136/110

194/155

239/187

279/213

300/233

313/239

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart Iron Eagle Platinum Meaux Racing Out of Box SF600

237.3/-

2.08/1.60
4.00
No Pipe

119/107

172/142

215/167

248/184

272/197

276/205

281/210

Dart SHP 180 Alum

180/75

2.02/1.60
-
No Pipe

64/72

139/114

190/145

218/164

222/172

218/174

Dart SHP 200 Alum

200/75

2.02/1.60
-
No Pipe

64/72

129/114

186/145

229/164

261/172

252/174

Dart PRO1 180 Alum

180/74

2.02/1.60
4.03
No Pipe

N/A

134/114

187/145

231/164

257/172

261/174

264/175

Dart PRO1 200 Alum

200/-

2.02/1.60
-
No Pipe

64/72

129/114

185/145

229/164

261/172

263/174

Dart PRO1 200 Bowl Cleanup Alum

200/-

2.05/1.60

N/A

209/155

237/193

269/216

281/222

Dart PRO1 200 Ported Bullet Cylinder Heads Alum

227/90

2.05/1.60

79/56

144/117

200/161

247/194

281/217

303/226

311/230

Dart PRO1 215 Alum

215/-

2.05/1.60
-
No pipe

64/72

127/114

178/145

216/164

249/172

268/174

271/-

Dart PRO1 215 Out of Box Weingartner Racing

N/A

2.055/1.60
4.125
No Pipe

N/A

65/52

138/106

198/138

243/165

273/178

269/186

268/189

265/191

Dart PRO1 215 Out of Box Jake Alum

N/A

2.055/1.60

N/A

63/52

134/110

184/135

225/163

255/181

265/193

255/199

Dart PRO1 215 Ported Mike Start Alum

215/-

2.08/1.60
4.030
No Pipe

N/A

80/68

148/127

200/180

244/207

281/220

303/225

308/232

Dart PRO1 215 Ported Mike Stark Saenz 680 Alum

N/A

2.055/1.60
4.155

N/A

74/58

148/109

210/147

260/181

296/203

312/218

318/227

320/232

321/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart PRO1 215 Meaux Racing Out of Box SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

128/115

181/148

226/178

257/192

271/198

266/201

261/203

Dart PRO1 215 Ported Meaux Racing Level 2 SF600 Alum

N/A

2.125/1.60
4.00
No Pipe

N/A

147/111

208/167

251/199

285/214

300/220

308/224

309/227

Dart PRO1 215 Ported Meaux Racing SF600 Alum

215/-

2.125/1.60
4.125
No Pipe

N/A

147/111

215/161

260/204

293/228

304/240

311/244

319/243

Dart PRO1 215 Ported Meaux Racing Welded Pushrod Area SF600 Alum

215/-

2.125/1.60
4.125
No Pipe

N/A

147/111

215/161

262/204

293/228

314/240

319/244

323/243

Dart PRO1 227 CNC Full Port Alum

227/85

2.08/1.625
4.155
No Pipe

158/117

209/149

257/182

293/211

302/220

309/226

314/232

Dart PRO1 Ported Alum

238/-

2.125/1.60
-
No Pipe

N/A

147/113

199/155

250/184

288/204

306/216

Dart PRO1 230 Alum

230/-

2.08/1.60
-
No Pipe

64/72

129/115

184/158

231/185

271/199

296/205

308/207

Dart PRO1 230 Dr Js Performance Alum

N/A

2.08/1.60
-
Pipe

N/A

61/51

115/103

168/135

216/166

254/187

258/202

262/212

Dart PRO1 230 CNC Dr Js Performance Alum

N/A

2.08/1.60
-
Pipe

N/A

71/67

141/120

207/162

257/195

289/219

300/232

309/244

Dart PRO1 230 Meaux Racing Out of Box SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

123/117

179/148

223/175

257/193

279/193

267/205

266/208

Dart PRO1 Ported 3V Performance Alum

N/A

2.08/-

N/A

80/-

145/-

210/-

267/-

305/-

327/-

338/-

344/-

346/-

Dart Platinum 23 Deg CNC Rons Porting Service 220 Alum

220/-

2.05/1.60

152/111

203/149

250/182

288/215

308/229

317/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart Platinum 23 Deg CNC Rons Porting Service 238 Alum

238/-

2.10/1.60

143/111

203/149

251/182

284/215

313/229

326/242

Dart Platinum 23 Deg CNC Rons Porting Service 240 Alum

240/-

2.125/1.60

143/111

203/149

254/182

294/215

317/229

328/242

Dart 23 Deg 220-225 Super Mod Alum

225/88

2.08/1.625
4.155
No Pipe

N/A

138/122

201/168

253/192

279/207

284/211

282/213

Dart 23 Deg 220-232 Full Port Alum

232/98

2.08/1.60
4.155
No Pipe

N/A

144/121

208/169

258/216

296/238

311/244

316/250

Dart 23 Deg 220 Full Port No back Cut SF600 Alum

240/-

2.10/1.60
-
No Pipe

N/A

147/117

202/189

253/220

287/236

310/246

320/250

324/251

Dart 220 RR Full Port Alum

239/103

2.10/1.60
-
No Pipe

N/A

154/121

223/168

276/202

311/229

319/237

323/243

Dart 220 RR CFE Full Port Alum

248/106

2.10/1.60
-
No Pipe

N/A

131/115

199/154

254/183

289/220

304/233

304/240

Dart 220 Race Series Alum

248/-

2.10/1.60
-
No Pipe

147/117

202/189

253/220

287/236

310/246

320/250

324/251

Dart 18 Deg CNC Out of Box Weingartner Racing

N/A

2.14/1.60
4.125
No Pipe

N/A

80/52

150/125

220/161

273/203

311/226

349/240

338/248

Dart 18 Deg Super Mod SF600

246/105

2.15/1.60
-
No Pipe

N/A

165/131

210/165

270/195

321/235

353/249

357/253

Dart 18 Deg Full Port No Back Cut SF600 Alum

252/105

2.15/1.60
4.155
No Pipe

N/A

132/101

194/144

252/198

305/217

347/227

365/241

358/241

Dart 18 Deg Full Port No Back Cut SF600 Alum

263/108

2.18/1.60
4.155
No Pipe

N/A

183/131

243/169

295/225

342/246

364/263

368/268

363/272

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 18 Deg Full Port SF600

275/110

2.18/1.60
-
No Pipe

N/A

165/131

210/173

272/230

326/249

360/263

378/270

Dart 18 Deg Alum

257/-

2.15/1.60
4.155
No Pipe

N/A

145/114

211/174

270/217

321/241

346/251

350/258

340/262

Dart 18 Deg Alum

270/-

2.18/1.60
4.155
No Pipe

N/A

162/114

232/174

293/217

332/241

359/251

366/258

366/262

Dart 18 Deg Alum

N/A

2.18/1.60
-
No Pipe

139/111

192/154

250/216

304/242

346/254

373/258

380/262

Dart 18 Deg Ported Chris Frank Alum

N/A

-
4.175
No Pipe

N/A

141/103

238/156

298/206

348/231

381/242

397/250

408/262

415/269

420/273

Dart 16 Deg Full Port Intake Back Cut 45/39/32 SF600 Alum

263/108

2.15/1.60
-
No Pipe

N/A

145/119

219/173

280/213

325/240

358/257

379/264

383/268

Dart 16 Deg Full Port Lrg No Back Cut SF600 Alum

281/119

2.20/1.625
-
No Pipe

N/A

163/106

228/149

286/191

340/219

377/234

387/247

392/251

Dart 16 Deg Ported Jones Engineering 58/107 Alum

267/-

2.18/1.60

161/101

231/149

291/211

337/237

360/253

371/263

375/268

Dart 15 Deg Small Alum

276/111

2.15/1.60
-
No Pipe

392/-

-/263

Dart 15 Deg Large Alum

281/113

2.20/1.60
-
No Pipe

Dart High Port 15 Deg - Darin Morgan SF600 Alum

N/A

2.18/1.625
-
No Pipe

N/A

136/111

212/157

281/214

339/243

379/258

394/265

396/271

404/273

-/275

Dart 12.5 Deg Ported Jones Engineering 36/102 I-45 E-45 Alum

282/-

2.18/1.625

147/110

225/159

288/218

344/246

386/267

390/274

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart Little Chief 11 Deg 275 I-50 E-55 SF1020 Alum

275/108

2.18/1.55
4.155
No Pipe

N/A

162/138

240/186

306/241

350/266

372/274

376/278

384/280

389/282

392/282

Dart Little Chief 11 Deg 315 I-55 E-55 SF1020 Alum

315/108

2.23/1.55
4.155
No Pipe

N/A

158/138

235/186

300/241

352/266

385/274

401/278

405/280

410/282

415/282

Dart Little Chief 11 Deg 315 I-55 E-55 SF1020 Alum

330/108

2.23/1.55
4.155
No Pipe

N/A

143/138

233/186

304/241

360/266

393/274

405/278

418/280

425/282

431/282

Dart Little Chief 11 Deg Ported MBE Alum

345/-

2.25/1.60
4.155
No Pipe

35-46

140/101

222/140

298/186

360/236

409/259

429/268

441/274

457/-

468/-

Dart Little Chief 11 Deg Ported MBE I-55 E-55 SF600 Alum

347/-

2.27/1.55
4.155
No Pipe

N/A

151/101

227/140

303/186

365/236

413/259

438/268

444/274

456/276

462/-

Dart 9 Deg Alum

299/215

2.20/1.625
-
No Pipe

70/54

153/103

227/156

300/209

360/243

406/266

421/279

Dart 9 Deg Alum

N/A

2.21/1.625
4.40
No Pipe

225/162

298/215

348/245

375/260

388/267

394/275

Edelbrock E-Street 5073, 5089 SF1020 Alum

185/60

2.02/1.60

64/70

63/51

125/99

182/131

225/153

248/163

249/168

Edelbrock 6071, 6073 Alum OLD

170/60

2.02/1.60

72/61

134/105

188/140

224/160

233/172

233/179

Edelbrock 60719 Performer RPM Straight Plug Alum

170/60

2.02/1.60

73/61

140/108

200/144

238/163

244/175

244/183

Edelbrock 60739 Performer RPM Angled Plug Alum

170/60

2.02/1.60

73/61

140/108

200/144

238/163

244/175

244/183

Edelbrock 60859, 60879 Performer Centerbolt SF1020 Alum

165/60

2.02/1.60

64/54

122/96

177/124

217/147

229/166

232/175

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock 60899, 60909, 60999 Performer RPM Alum

170/60

2.02/1.60

67/58

130/108

183/144

226/169

229/175

232/182

Edelbrock Performer RPM 60899, 60999 SF1020 Alum

185/65

2.02/1.60

66/55

129/98

188/131

228/152

240/162

241/168

Edelbrock Performer RPM 608979 SCCA SF1020 Alum

185/65

1.94/1.55

61/51

127/95

185/118

217/131

229/137

237/140

Edelbrock Performer RPM '86 earlier 60759 SF1020 Alum

185/65

2.02/1.60

64/70

66/52

127/97

185/127

230/146

238/156

239/162

Edelbrock 60899 Performer RPM Alum CHP

185/63

2.02/1.60

60/48

125/96

181/134

223/161

244/176

Edelbrock 6089 NPS Alum

N/A

2.02/1.60
4.016
No Pipe

N/A

65/54

127/105

180/137

219/155

240/163

236/167

Edelbrock 60979 E-Tec 170 SF1020 Alum

170/70

1.94/1.55

64/54

130/104

186/140

220/169

232/183

238/190

Edelbrock 60989 E-Tec 200 SF1020 Alum

200/80

2.02/1.60

67/57

122/110

175/153

223/182

252/196

259/204

265/207

Edelbrock E-210 Out of Box Weingartner Racing Alum

210/-

2.08/1.60
4.155
No Pipe

N/A

64/41

132/88

179/124

220/147

246/163

259/172

264/175

263/177

259/178

259/-

Edelbrock/ Chapman 61049 Alum

236/100

2.135/1.625
-
No Pipe

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Edelbrock/ Chapman Victor 18 Deg 61069 Alum

252/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

342/250

345/260

Edelbrock 23 Deg. CNC Rons Porting Service Alum

236/-

2.10/1.60

168/116

223/164

281/210

308/232

322/238

326/240

328/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock 18 Deg. CNC Rons Porting Service Alum

278/-

2.18/1.625

150/125

220/180

281/224

331/240

362/248

380/251

385/254

Edelbrock 18 Deg. Ported Chad Speier I-50 E-50 Alum

N/A

2.18/1.60
4.155
2" Pipe

136/102

212/148

275/192

325/229

362/257

383/268

393/275

395/278

396/281

Edelbrock/ Chapman Victor 18 Deg 61089 Alum

256/100

2.18/1.625

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Edelbrock/ Chapman Victor 18 Deg 61109 Alum

236/100

2.125/1.625

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Edelbrock 61119 Victor 15 Deg. Ported Chapman Alum

283/100

2.18/1.625
-
No Pipe

63/48

137/113

215/177

281/217

327/240

363/254

381/260

Edelbrock 61129 Alum

252/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

342/250

345/260

Edelbrock 61139 Victor 15 Deg. Ported Chapman Alum

317/100

2.25/1.625
-
No Pipe

70/49

142/118

216/175

280/212

328/241

368/257

398/267

404/271

Edelbrock 15 Deg. CNC Rons Porting Service Alum

272/-

2.18/1.625

153/110

228/184

292/229

334/258

366/268

382/274

Edelbrock 15 Deg CNC RFD Alum

2.25/1.625

N/A

156/120

228/180

304/220

363/246

398/258

410/269

418/273

422/280

Edelbrock 61149 Alum

256/100

2.18/1.625

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Edelbrock/ Chapman Victor 18 Deg 61159 Alum

246/100

2.15/1.625

72/54

161/108

232/182

286/222

321/238

340/250

342/260

Edelbrock 61169 Alum

266/100

2.18/1.625

71/54

151/108

226/182

271/222

323/238

350/250

355/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock 61179 Alum

270/105

2.18/1.625

71/51

151/114

226/180

271/213

323/240

350/248

355/255

Edelbrock 61189 Alum

246/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

340/250

342/260

Edelbrock 61199 Alum

266/100

2.18/1.625

71/54

151/108

226/182

271/222

323/238

350/250

355/260

Edelbrock/ Chapman Victor 23 Deg 61209 Alum

238/85

2.125/1.625
-
No Pipe

68/54

147/106

221/181

265/212

293/228

312/235

317/240

Edelbrock/ Chapman Victor 23 Deg 61229 Alum

243/85

2.125/1.625
-
No Pipe

67/54

147/106

221/181

269/212

299/228

310/235

315/240

Edelbrock/ Chapman Victor 23 Deg 61249 Alum

247/85

2.125/1.625
-
No Pipe

71/54

146/106

222/181

268/212

299/228

314/235

321/240

Edelbrock/ Chapman Victor 23 Deg 61209 Revised Smithberg Racing Alum

N/A

2.135/1.60
4.155
No Pipe

N/A

80/42

166/98

231/173

281/209

320/228

338/241

346/248

351/257

355/258

360/258

Edelbrock Victor Jr. 23 Deg. 77569, 77579, 77589, 77599, 77619, 77629, 77639, 77649 SF1020 Alum

215/85

2.08/1.60

64/70

67/64

119/112

177/153

226/188

265/207

281/217

285/220

Edelbrock Victor Jr. 23 Deg. 7761 Alum CHP

N/A

2.08/1.60

N/A

69/57

123/111

173/145

219/180

255/198

275/206

284/206

Edelbrock Victor Jr. 23 Deg. Ported Bullet Cylinder Heads Alum

225/90

2.08/1.60

72/55

144/107

201/156

255/185

287/208

297/221

305/226

Edelbrock 23 Deg. 77559 Ported Jones Engineering 40/60 I-45 E-45 Alum

237/-

2.125/1.60

151/118

223/161

273/200

304/218

324/230

332/237

EngineQuest 167 23 Deg Out of Box Weingartner Racing Iron

167/-

2.02/1.60
4.125
No Pipe

70/64

124/109

173/158

207/164

230/167

238/166

241/166

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

EngineQuest CC180BA 23 Deg Iron

180/-

2.02/1.60
-
No Pipe

65/55

130/107

178/133

213/157

235/174

242/183

244/188

EngineQuest CC200BA 23 Deg Iron

200/-

2.02/1.60
-
No Pipe

75/65

137/113

186/147

225/170

252/182

265/188

272/189

EngineQuest AC200BS 23 Deg Out of Box Shaver Alum

197/-

2.02/1.60

59/51

122/101

176/139

217/167

231/180

225/185

228/187

EngineQuest 200 Weingartner Racing Back Cut Alum

N/a

2.02/1.60
4.155
No Pipe

N/A

64/48

131/99

186/132

231/157

252/176

259/186

259/191

259/194

EngineQuest CC220BA 23 Deg Iron

220/-

2.02/1.60
-
No Pipe

71/64

141/115

196/145

238/170

265/189

280/202

284/208

EngineQuest 220 23 Deg Out of Box Weingartner Racing Iron

220/-

2.02/1.60
4.125
No Pipe

75/49

145/103

204/136

252/155

278/171

292/183

296/191

EngineQuest 220 23 Deg Ported Dr Js Performance Out of Box Trmnatr Iron

N/A

2.08/1.60
-
1 3/4" Pipe

N/A

71/63

139/125

200/159

242/190

277/214

297/230

307/241

EngineQuest CC235BA 23 Deg Iron

235/-

2.08/1.60
-
No Pipe

72/56

141/107

198/138

247/168

279/187

296/195

304/200

EngineQuest 235 23 Deg Out of Box Weingartner Racing Iron

235/-

2.08/1.60
4.125
No Pipe

70/55

139/115

199/171

246/190

282/199

308/202

313/204

EngineQuest 235 23 Deg Out of Box Weingartner Racing Brez I-30 E-30 back Cut Iron

235/-

2.08/1.60
4.155
No Pipe

74/64

146/116

245/150

276/173

295/190

305/198

310/204

EngineQuest 23 Deg Dr Js Performance Iron

232/-

2.08/1.60

N/A

71/63

139/125

200/158

242/190

277/214

297/230

307/241

EngineQuest 215 CNC Air Wolf Dr Js Performance Iron

215/-

2.08/1.60
4.06

74/-

143/-

203/-

252/-

291/-

312/-

322/-

328/-

331/-

335/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

EngineQuest CH350A Vortec Iron

176/-

1.84/1.50
-
No Pipe

EngineQuest CH350C Vortec Iron

170/-

2.02/1.60
-
No Pipe

54/49

104/88

194/119

224/140

224/148

226/152

228/152

EngineQuest CH350C Vortec Blended VJ Keith Morganstein Iron

N/A

2.02/1.60

N/A

79/56

153/94

200/149

238/177

255/186

266/193

EngineQuest CH350I IMCA Iron

167/-

1.94/1.50

N/A

Flo-Tek 180 23 Deg SF1020 Alum

180/62

2.02/1.60

117/98

163/133

200/159

232/173

238/181

239/182

Flo-Tek 200 23 Deg SF1020 Alum

200/78

2.02/1.60

75/56

132/116

185/150

233/169

270/171

281/172

288/174

Flo-Tek 210 23 Deg SF1020 Alum

210/78

2.05/1.60

151/114

211/149

250/183

275/203

283/214

284/219

289/200

Flo-Tek 220 23 Deg SF1020 Alum

220/84

2.08/1.60

143/124

208/162

262/193

301/216

315/230

320/238

320/246

Flo-Tek 23 Deg Ported Chad Speier Alum

220/-

2.08/1.60
4.155

N/A

201/153

256/195

301/221

320/234

329/243

331/250

HRD Ported All Pro 23 Deg Alum

N/A

2.125/1.61

N/A

148/120

221/165

275/235

312/257

329/266

344/270

HRD Ported All Pro 227 Alum

N/A

2.15/1.625

N/A

148/115

217/191

272/242

317/260

342/269

352/273

358/277

HRD Ported AFR 215

245/-

2.125/1.61

N/A

142/111

215/162

271/222

310/244

328/251

340/254

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

HRD Ported Brodix Track I Alum

N/A

2.08/1.60

N/A

138/111

198/160

254/209

297/218

312/225

320/220

HRD Ported GM 580/855 18 Deg

255/-

2.15/1.625

N/A

154/111

221/159

276/235

321/251

355/262

364/270

HRD Ported GM 855 18 Deg

N/A

2.18/1.60

N/A

149/114

225/178

277/231

318/260

355/267

365/270

371/-

HRD Ported GM 12480011 SB2.2

N/A

157/111

240/160

297/227

339/254

364/264

374/272

380/276

HRD Ported GM 12480011 SB2.2

290/-

2.17/1.61

N/A

140/114

249/162

314/221

355/249

383/262

393/270

406/288

HRD Ported GM SB2.2 Hi/Lo

270/-

2.17/1.61

142/114

227/165

298/217

350/248

379/267

392/278

398/281

HRD Ported GM 517 Splayed Val

N/A

2.20/1.625

N/A

142/114

225/178

294/226

375/257

375/273

395/283

406/287

411/290

HRD Ported GM 517 Splayed Val

N/A

2.225/1.625

N/A

135/111

220/146

294/192

353/235

391/265

409/281

420/288

433/292

HRD Ported GM 615x 15 Deg

268/-

2.18/1.61

N/A

151/114

218/168

270/232

317/257

352/271

389/280

401/283

410/285

HRD Ported GM 615x 15 Deg

285/-

2.20/1.61

N/A

134/121

211/178

265/229

317/259

357/272

390/278

410/282

422/288

HRD Ported GM 615x 15 Deg Rolled to 13 Deg

260/-

2.17/1.60

125/109

199/175

257/228

312/262

355/275

384/284

408/290

419/296

Holley 300-570 Alum

172/-

2.02/1.60
-
Pipe

72/53

134/102

188/143

223/170

232/177

236/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Holley SysteMax Alum

186/-

2.02/1.60
-
Pipe

66/53

130/92

184/122

222/148

242/172

252/187

Holley Avenger Alum

184/68

2.02/1.60

223/173

Patriot 23 Deg 185 Out of Box CHW SF600 Alum

185/-

2.02/1.60
4.00
No Pipe

N/A

56/53

101/83

147/114

190/137

227/155

245/171

248/177

Patriot 23 Deg 190 CNC Alum

190/62

2.02/1.60

64/50

130/96

181/136

219/165

248/181

260/190

Patriot 23 Deg 195 CNC Alum

195/-

2.02/1.60

70/68

140/106

193/144

230/178

259/190

270/201

273/211

Patriot 23 Deg 195 Dr Js Performance Alum

195/-

2.05/1.60
-
Pipe

N/A

70/52

132/94

180/127

220/162

244/178

260/188

260/192

Patriot 23 Deg 215 CNC Alum

215/-

2.02/1.60

71/68

141/106

196/144

234/178

260/190

278/201

282/211

Patriot 23 Deg 215 CNC Alum

215/-

2.08/1.60

72/68

138/106

191/144

230/178

261/190

283/201

290/211

Patriot 23 Deg 225 Out of Box CHW SF600 Alum

225/-

2.08/1.60
4.00
No Pipe

N/A

64/48

127/93

181/135

229/156

266/167

278/170

283/174

Patriot Freedom 190 CNC HPS Alum

190/62

2.02/1.60

68/50

132/97

187/137

225/165

250/181

259/190

Patriot Freedom 225 Alum

225/70

2.08/1.60

82/70

158/119

222/164

259/194

287/215

295/222

301/224

Patriot Freedom Meaux Racing Out of Box SF600 Alum

225/-

2.08/1.60
4.03
No Pipe

N/A

127/102

187/149

234/174

262/179

275/181

277/182

276/181

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

PBM 217 CNC Iron

217/-

2.05/1.60

146/114

206/161

255/191

288/209

304/216

309/220

PBM 228 CNC Iron

228/-

2.08/1.60

143/111

209/160

258/192

294/212

314/220

321/225

PBM 232 CNC Iron

232/-

2.10/1.60

151/114

211/164

261/196

298/216

316/230

325/237

PBM 15 Deg CNC Alum

N/A

2.18/1.625

153/110

228/184

300/229

340/258

371/268

382/274

Pro Comp 23 Deg Alum

N/A

2.02/1.60

71/57

146/101

204/157

250/177

261/186

267/190

276/195

Pro Comp 190 OLD Out of BoxWeingartner Racing Alum

190/-

2.02/1.60
4.125
No Pipe

N/A

71/55

130/110

174/143

217/157

247/159

250/157

250/156

Pro Comp 190 Out of Box Weingartner Racing Alum

190/-

2.02/1.60
4.125
No Pipe

N/A

71/55

127/104

178/132

222/165

253/180

279/181

287/182

Pro Comp 190 23 Deg Dr Js Performance Alum

190/-

2.02/1.60

N/A

60/52

107/81

152/109

200/136

238/156

257/174

260/177

Pro Comp 190 23 Deg CNC Dr Js Performance Alum

N/A

2.08/1.60
-
1 3/4" Pipe

N/A

73/65

139/115

201/138

245/167

272/198

289/217

297/231

Pro Comp 220 23 Deg CNC Dr Js Performance Alum

220/-

2.08/1.60

75/69

144/110

201/145

244/175

285/200

308/215

314/228

318/237

325/241

Pro Comp 23 Deg 210 CNC Alum

210/-

2.02/1.60
4.125

N/A

77/56

157/112

212/156

240/183

264/199

278/208

287/213

Pro Comp 23 Deg 210 PC3003 SF600 Alum

210/-

2.02/1.60
-
Pipe

N/A

63/52

117/98

163/132

204/162

230/180

248/189

252/192

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp 210 CNC Out of Box Weingartner Racing Alum

210/-

2.02/1.60
4.125
No Pipe

N/A

77/56

157/112

212/156

240/183

264/199

278/208

287/213

290/216

Pro Comp 210 CNC Out of Box Weingartner Racing Brez Alum

210/-

2.02/1.60
4.155
No Pipe

N/A

62/49

113/105

160/136

207/172

250/187

277/189

284/189

Pro Comp Vortec

N/A

2.02/1.60

N/A

64/57

114/101

161/128

201/152

232/159

251/169

Pro Comp Ported Chad Speier v2.5 I-45 E-45 Alum

N/A

2.05/1.60
4.06
Pipe

N/A

149/107

194/142

245/175

284/196

300/209

305/219

308/225

312/230

313/233

Pro-Filer 195 Alum

195/-

2.02/1.60

N/A

145/101

205/144

255/175

278/194

281/205

282/213

283/219

Pro-Filer 195 Darin Morgan SF600 Alum

195/-

2.02/-

N/A

147/-

214/-

259/-

275/-

276/-

277/-

Pro-Filer 195 Out of Box Chad Speier Alum

195/-

2.02/-

N/A

156/-

217/-

263/-

277/-

282/-

285/-

Pro-Filer 195 Ported Chad Speier Alum

204.5/-

2.055/-

N/A

164/-

218/-

272/-

304/-

305/-

307/-

308/-

Pro-Filer 195 Ported Chad Speier I-45 E-45 Alum

227/-

2.10/1.60
4.155

145/-

212/-

268/-

302/-

322/-

331/-

333/-

334/-

336/-

Pro-Filer 195 Ported Chad Speier I-45 E-45 Alum

227/-

2.10/1.60
4.155
1 7/8" Pipe

N/A

153/112

222/154

266/185

299/207

319/219

329/227

332/236

334/239

336/241

Pro-Filer 176-21 C 23 Deg Alum

210/-

2.055/1.60

129/109

186/145

227/172

271/187

284/219

294/232

Pro-Filer 23 Deg Darin Morgan Ports Out of Box Int 30 deg Back cut 18 deg tulip exhaust w back cut SF600 Alum

210/-

2.055/1.60
-
No Pipe

62.15-62.2

143/96

204/150

250/178

284/199

300/211

300/218

302/221

302/223

300/223

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer 23 Deg Gasket Matched Trmnatr Alum

N/A

2.055/1.60
4.07

N/A

143/96

204/150

250/178

284/199

300/211

300/218

302/221

302/223

300/223

Pro-Filer 23 Deg VJ Gasket Matched Ports Dr Js Perfomance Alum

210/-

2.08/1.60
4.155
1 3/4" Pipe

N/A

74/59

135/112

197/162

243/189

282/205

290/212

295/221

299/228

Pro-Filer 210 Out of Box Daryl Alum

210/-

2.055/1.60

N/A

127/102

183/138

232/158

261/171

277/177

281/182

295/-

Pro-Filer 210 Out of Box Back Cut Valve Chad Speier Alum

210/-

2.055/-
4.125

N/A

159/-

211/-

261/-

285/-

290/-

295/-

Pro-Filer 210 Pushing the Throat Back Cut Valve Chad Speier Alum

210/-

2.055/-
4.125

N/A

155/-

212/-

260/-

290/-

291/-

297/-

300/-

Pro-Filer 210 VJ Clean Up Chad Speier Alum

210/-

2.125/-

N/A

148/-

217/-

261/-

300/-

302/-

303/-

300/-

Pro-Filer Ported Chad Speier Alum

218/-

2.10/-

N/A

153/-

217/-

266/-

300/-

311/-

315/-

319/-

Pro-Filer Ported Chad Speier v2.72 Alum

N/A

2.10/1.60
4.155
No Pipe

N/A

139/100

196/129

243/161

283/188

317/206

331/219

337/228

341/233

344/239

Pro-Filer Ported Chad Speier v3.00 I-50 E-50 Alum

265/-

2.14/1.58
-
1 7/8 Pipe

N/A

138/105

206/145

254/180

294/207

326/222

344/232

351/240

357/246

363/249

Pro-Filer 220 CNC Air Wolf Alum

220/-

2.08/1.60
-
1 7/8" Pipe

78/65

155/116

228/162

276/196

301/219

315/233

320/244

322/252

324/257

-/260

Pro-Filer Darin Morgan 220 CNC Air Wolf SF600 Alum

220/-

2.08/-

N/A

155/-

225/-

272/-

304/-

317/-

321/-

326/-

330/-

331/-

Pro-Filer 235 CNC Air Wolf Alum

235/-

2.10/1.60
-
1 7/8" Pipe

N/A

75/69

147/110

203/145

249/180

288/207

310/220

325/229

335/238

338/247

339/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer Darin Morgan 245 CNC Air Wolf SF600 Alum

245/-

2.125/-

N/A

161/-

231/-

281/-

311/-

329/-

339/-

345/-

349/-

350/-

Pro-Filer Meaux Racing 220 CNC Air Wolf SF600 Alum

220/-

2.10/1.60
4.125
No Pipe

N/A

142/102

209/146

257/174

290/196

299/211

303/220

307/224

309/227

Pro-Filer 13 Clean up Chad Speier Alum

N/A

2.18/1.58

N/A

148/115

221/166

279/202

328/229

351/244

365/252

370/257

373/260

375/262

Pro-Filer Ported Chad Speier Alum

N/A

2.20/-

N/A

152/-

229/-

290/-

335/-

369/-

388/-

395/-

397/-

399/-

Pro 14 Deg as Cast

235/-

2.125/1.625

N/A

72/64

147/105

212/156

269/200

293/226

312/238

325/245

Pro 14 Deg CNC Ported

305/-

2.25/1.625

N/A

77/67

162/119

234/189

300/229

353/252

384/266

401/274

411/281

Pro 23 Deg as Cast Alum

235/-

2.055/1.60
4.03
No Pipe

64/72

129/109

186/145

227/172

271/187

284/219

295/232

Pro 23 Deg as Cast Alum

N/A

2.055/1.60
4.03
No Pipe

64/72

66/56

134/110

191/147

232/175

260/192

278/201

291/207

296/210

Pro 23 Deg as Cast Alum

235/-

2.08/1.60
4.03
No Pipe

64/72

73/60

138/114

196/152

243/178

274/192

292/194

312/197

Pro Topline 220 Out of Box

220/-

2.02/1.60
-
No Pipe

N/A

126/89

184/123

233/147

265/162

287/171

Pro Topline Iron

254/-

2.15/-

N/A

154/117

223/165

282/216

327/240

351/250

364/260

Pro Topline Ported Rons Alum

N/A

2.10/1.60
4.125

N/A

131/115

184/152

229/180

263/198

291/209

303/212

305/214

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Topline 14 Ported Weingartner Racing Alum

N/A

-
-
No Pipe

N/A

76/51

158/101

229/140

294/177

383/211

380/245

395/258

401/268

407/272

415/277

Racer Pro 23 Deg Ported Bullet Cylinder Heads

N/A

2.08/1.60

71/63

140/109

198/155

248/187

278/210

293/221

305/229

Racer Pro 18 Deg Ported Bullet Cylinder Heads

247/100

2.15/1.60

76/60

158/112

224/155

273/194

312/233

331/241

340/250

344/257

RDP-SBX Australian Pro Stock Darin Morgan SF600 Alum

N/A

2.27/1.60
-
No Pipe

N/A

146/92

231/151

314/188

384/238

426/271

450/286

465/296

473/297

482/299

RFD Monster 18 Deg Alum

N/A

2.18/1.625

N/A

239/189

304/233

345/266

380/266

394/276

395/281

RHS RR 21 Deg Weingartner Racing Out of Box

N/A

2.08/1.60
4.155
No Pipe

N/A

67/55

151/113

212/154

255/187

271/202

282/206

287/210

296/213

RHS 21 Deg Ported Weingartner Racing

N/A

2.125/1.60
-
No Pipe

N/A

70/55

141/96

208/133

260/164

298/192

333/212

343/224

346/232

350/236

360/241

RHS 21 Deg Ported Rons Porting Service

250/-

2.15/1.60

152/125

220/170

275/207

318/220

340/234

346/242

352/252

RHS Lightning Iron CHP

200/75

2.06/1.60

65/45

122/91

170/128

210/152

233/167

263/176

RHS Lightning 23 Deg Ported Bullet Cylinder Heads Iron

218/91

2.05/1.60

72/57

140/103

183/144

228/179

265/202

288/215

294/220

RHS Pro Action 23 Deg 180 SF600

180/-

2.02/1.60
4.20

64/72

74/58

151/101

207/157

243/177

258/186

263/190

270/195

RHS Pro Action 23 Deg 200 SF600

200/-

2.02/1.60
4.20

50/64/72

69/57

134/101

192/157

236/177

261/186

268/190

278/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Action 23 Deg 220 SF600

220/-

2.02/1.60
4.20

50/64/72

71/57

146/101

205/157

250/177

265/186

272/190

282/195

RHS Pro Action 23 Deg 220 Joe Sherman SF600 Iron

220/-

2.02/1.60

N/A

68/55

128/99

182/132

233/160

269/184

290/192

301/201

RHS 220 Smithberger Racing Iron

N/A

2.02/1.60
4.155
No Pipe

N/A

73/53

131/115

190/147

241/180

279/196

300/201

303/206

RHS 220 Ported Smithberger Racing Iron

244/82

2.08/1.60
4.155
No Pipe

74/48

146/103

202/140

248/185

283/206

313/219

328/226

336/234

343/238

RHS 220 Weingartner Racing Back Cut Alum

N/A

2.02/1.60
4.155
No Pipe

N/A

65/59

126/99

184/129

230/155

265/176

285/187

289/194

282/196

280/196

RHS 220 Chad Speier Alum

N/A

2.02/-
4.155

N/A

133/-

187/-

233/-

268/-

281/-

282/-

281/-

280/-

RHS 220 Chad Speier Alum

N/A

2.02/-
4.155

N/A

135/-

183/-

232/-

268/-

291/-

297/-

303/-

305/-

307/-

RHS Pro Action 23 Deg 228 3V Performance CNC

228/-

2.05/1.60
4.03
No Pipe

N/A

78/60

144/104

199/140

249/165

280/188

302/211

315/214

RHS Pro Action 23 Deg 235 SF600

235/-

2.08/1.60
4.20

64/72

73/60

138/114

196/152

243/178

274/183

292/191

312/195

RHS Pro Action 23 Deg 235 Meaux Racing Out of Box SF600 Iron

235/-

2.08/1.60
4.00
No Pipe

N/A

102/85

158/124

199/149

239/169

275/179

300/188

309/191

RHS Pro Action 23 Deg 235 Meaux Racing Out of Box SF600 Best out of 12 pairs Iron

235/-

2.08/1.60
4.125
No Pipe

N/A

110/85

160/128

211/154

255/171

291/181

310/188

311/190

310/192

RHS Pro Action 23 Deg 235 Competition Engines

235/-

2.08/1.60
4.03

N/A

113/91

161/119

209/141

248/157

281/166

293/173

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS 235 Ported T-Flow

N/A

2.08/1.60
4.16

N/A

139/-

191/158

237/-

280/190

308/-

316/206

320/-

321/-

RHS Pro Action 14 Deg as Cast

235/-

2.125/1.625

N/A

72/59

142/109

216/160

279/205

321/227

345/236

350/246

RHS Pro Action 14 Deg Ported Slick Rick Racing Heads

N/A

2.18/1.625

N/A

130/-

205/-

260/-

318/-

360/-

380/-

385/-

387/-

394/-

RHS 12030 23 Deg Meaux Racing Out of Box SF600 Alum

235/-

2.08/1.60
4.125
No Pipe

N/A

118/98

162/141

209/171

251/186

277/192

278/195

277/196

RHS Pro Topline 235 CNC Out of Box Weingartner Racing

235/-

2.08/1.60
4.125
No Pipe

77/59

134/110

187/142

236/168

274/191

306/200

318/204

RHS 235cc GPA Jet Sprint Ported Kelford Cams Iron

N/A

2.08/1.60

64/72

80/69

147/129

203/166

249/193

280/208

299/213

312/215

RHS 235cc Out of Box Chad Speier SF600

N/A

2.08/-
4.155

N/A

121/-

171/-

213/-

253/-

280/-

283/-

279/-

RHS 235cc Econo Ported Chad Speier

N/A

2.08/1.60

N/A

141/119

194/154

247/176

286/191

314/199

321/201

324/211

RHS 235cc Ported Chad Speier

N/A

2.08/1.60
4.155

N/A

140/132

200/160

249/189

289/212

321/224

336/232

338/236

339/-

RHS Ported Chad Speier

N/A

2.10/1.60

N/A

340/-

348/-

RHS Vortec 23 Deg Iron

170/-

1.94/1.50

N/A

252/-

RHS Pro Torker Vortec 23 Deg SF600 Iron

170/-

1.94/1.50
4.20

71/59

144/114

209/146

258/159

268/165

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Torker Vortec 23 Deg SF600 Iron

170/-

2.02/1.60
4.20

77/74

155/140

220/168

263/172

270/174

RHS Pro Torker 23 Deg Out of Box Weingartner Racing Brez Iron

N/A

2.02/1.60
4.155
No Pipe

N/A

70/54

126/106

186/143

222/151

254/154

235/155

RHS 12407 Out of Box 30 BC Randy Iron

170/-

1.94/-
4.06

N/A

135/-

188/-

230/-

241/-

RHS 12410 Out of Box 30 BC Randy Iron

170/-

2.02/-
4.06

N/A

143/-

198/-

233/-

246/-

Trick Flow G1 SF600

180/-

2.02/1.60
4.03
1 3/4" Pipe

66/52

143/110

187/148

223/178

232/194

240/204

Trick Flow G2 31500005 CARB SF600

190/82

2.02/1.60
4.03
1 3/4" Pipe

68/53

144/106

206/144

242/173

252/195

257/205

Trick Flow 18 Deg Ultra SF600

230/-

2.15/1.60

334/256

Trick Flow 18 Deg Ultra Race SF600

250/100

2.15/1.60
4.155
2" Pipe

73/61

144/113

215/158

274/200

313/230

334/248

334/256

Trick Flow 18 Deg SF600 Alum

250/100

2.15/1.625

144/113

217/152

276/198

316/219

328/231

328/237

Trick Flow 18 Deg Cartridge Roll Clean-up SF600 Alum

250/100

2.15/1.60
4.155
2 pipe

73/61

144/113

215/158

274/197

313/224

334/237

334/246

Trick Flow 18 Deg CNC Chamber Intake Port Match SF600 Alum

250/100

2.15/1.60
4.155

N/A

71/-

149/-

221/-

277/-

319/-

351/-

343/-

Trick Flow 18 Deg Ported TEA Alum

265/90

2.15/1.60
4.155
2" Pipe

69/55

146/113

225/169

289/239

332/275

354/299

357/312

366/321

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 18 Deg Ported TEA Alum

274/109

2.18/1.60

N/A

60/52

131/120

209/175

275/229

333/273

369/294

381/308

390/317

396/324

Trick Flow 18 Deg Ported TEA Alum

275/95

2.18/1.60
4.185
2" Pipe

64/55

137/124

220/190

286/243

340/285

383/305

402/313

404/316

405/320

Trick Flow 18 Deg Ported TEA Alum

295/109

2.20/1.60

N/A

64/52

133/120

216/175

282/229

340/273

385/294

412/308

420/317

425/324

Trick Flow 18 Deg Ported BES Alum

258/-

2.15/1.60

129/108

197/150

258/182

302/208

336/224

358/235

364/240

Trick Flow 30400001 Alum CHP

195/73

2.02/1.60

60/43

125/86

174/117

215/144

239/162

243/175

Trick Flow 23 Deg Super Street SF600 Alum

175/67

1.94/1.50
4.03
1 3/4" Pipe

62/57

127/109

180/142

219/167

242/181

245/192

Trick Flow 23 Deg Super Street Alum

175/67

1.94/1.50

61/53

127/105

180/142

216/160

242/172

242/180

Trick Flow 23 Deg Super Street/Strip SF600 Alum

195/72

2.02/1.60

254/190

Trick Flow 23 Deg Super Street/Strip CNC Chamber SF600 Alum

195/72

2.02/1.60
4.03
1 3/4" Pipe

71/53

142/99

196/135

234/167

249/186

249/199

Trick Flow 23 Deg Super Race SF600 Alum

215/78

2.08/1.60
4.155
1 7/8" Pipe

67/72

66/57

141/107

199/145

244/175

273/190

282/198

287/203

Trick Flow 23 Deg Super 215 3240 SF600 Alum

215/78

2.08/1.60
4.155
1 7/8" Pipe

67/72

66/58

141/108

199/147

244/180

273/202

282/214

287/223

Trick Flow 23 Deg Super Race CNC SF600 Alum

230/78

2.08/1.60
4.155
1 7/8" Pipe

69/55

144/112

213/158

265/195

296/220

305/234

310/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TFS 23 Deg CHP

N/A

2.02/1.60

N/A

65/70

133/102

188/140

226/164

250/183

Trick Flow R 23 Deg SF600 Alum

215/78

2.08/1.60
-
Pipe

66/57

141/107

199/145

244/175

273/190

282/198

287/203

Trick Flow Duttweiler 23 Deg SF600 Alum

195/72

2.02/1.60

51/58

136/98

191/136

230/163

253/177

254/190

Trick Flow Duttweiler 23 Deg CNC Chamber SF600 Alum

195/72

2.02/1.60

64/56

138/105

198/146

237/171

257/186

258/196

Trick Flow 23 Deg Ported TEA Alum

200/-

2.02/1.60
4.03
Pipe 1 3/4

N/A

68/54

143/117

217/177

263/219

290/243

294/257

Trick Flow 23 Deg Ported TEA Alum

N/A

2.08/1.60
4.125
Pipe 2"

N/A

69/52

144/119

210/182

260/224

300/247

314/257

318/262

World S/R Replacement SF600 Iron

170/65

1.94/1.50
-
No Pipe

58/67/76

232/161

World S/R Replacement SF1020 Iron

170/65

1.94/1.50
-
No Pipe

58/67/76

220/151

World S/R Torquer SF600 Iron

170/65

2.02/1.60
-
No Pipe

67/76

63/53

129/102

186/137

217/146

235/151

222/153

219/154

217/154

World S/R Torquer SF1020 Iron

170/65

2.02/1.60
-
No Pipe

67/76

60/50

123/97

177/130

206/139

223/143

211/145

208/146

206/146

World S/R Torque Iron CHP

171/82

2.02/1.60
-
No Pipe

67/76

68/55

128/100

179/133

205/145

221/153

225/155

World S/R Torque Iron CHP

171/82

2.02/1.60
-
Pipe

67/76

68/55

128/104

179/140

205/156

221/166

225/170

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World S/R Torquer Ported Blackstone Iron

180/-

1.94/1.50

81/66

151/123

214/149

252/162

258/172

266/177

270/177

World S/R Torque Tri-Mark Iron

N/A

2.02/1.60

N/A

64/53

128/110

176/126

194/135

196/136

198/137

World S/R Torque Ported Tri-Mark Stealth Iron

N/A

2.02/1.60

N/A

70/59

137/114

188/136

220/149

227/155

230/160

World CHP Iron

200/-

2.02/1.60
-
No Pipe

N/A

132/98

187/123

225/138

240/150

243/156

World Sportsman II SF600 Iron

200/69

2.02/1.60
-
No Pipe

64/72

260/176

World Sportsman II Iron

200/64

2.02/1.60
-
Pipe

64/72

187/131

225/150

240/164

243/162

World Sportsman II Cast Heads Iron

N/A

2.02/1.60

N/A

64/60

130/107

186/123

212/136

230/142

231/143

235/143

World Sportsman II Out of Box Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

72/55

133/97

182/128

228/145

257/160

264/183

263/194

World Sportsman II Ported Cast Heads Iron

N/A

2.02/1.60

N/A

68/58

139/118

196/158

235/178

256/186

272/190

278/192

World Sportsman II Ported Iron

212/-

2.05/1.60
-
No Pipe

N/A

189/145

238/170

270/182

284/190

World Sportsman II Dr Js Performance Iron

200/-

2.02/1.60
-
Pipe

N/A

65/63

134/110

188/130

214/143

224/150

231/153

234/156

World Sportsman II Ported Dr Js Performance Iron

N/A

2.05/1.60
-
Pipe

N/A

72/64

140/110

194/134

236/163

261/205

271/223

276/233

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Sportsman II Ported Iron

N/A

2.02/1.60
4.155

N/A

62/64

134/118

193/158

239/199

263/215

268/224

World Sportsman II Ported Bullet Cylinder Heads Iron

219/89

2.05/1.60

72/57

145/105

206/142

250/167

270/190

288/202

297/215

World Sportsman 200 Tri-Mark Stealth Iron

200/-

2.02/1.60

N/A

61/60

128/113

184/135

210/140

230/144

235/146

World Sportsman 200 Ported Tri-Mark Stealth Iron

N/A

2.02/1.60

N/A

70/59

144/120

197/147

230/161

247/170

255/174

World Motown 220 SF600 Iron

220/70

2.08/1.60
-
No Pipe

66/56

132/117

191/154

235/176

266/189

284/198

287/202

284/205

World Motown 220

220/70

2.08/1.60

N/A

125/105

187/139

225/166

248/182

263/190

266/193

World Motown 220 Iron CHP

220/79

2.06/1.60

60/50

123/109

177/142

222/172

243/187

260/195

World Motown 215 SF600 Alum

215/70

2.08/1.60
-
No Pipe

N/A

69/54

128/107

180/141

227/162

263/177

279/186

268/194

268/197

World Motown 215 SF1020 Alum

215/70

2.08/1.60
-
No Pipe

N/A

66/51

122/102

171/134

216/154

250/168

265/177

255/184

255/187

World Motown 235 SF600 Alum

235/70

2.08/1.60
-
No Pipe

65/56

135/107

198/147

247/174

284/174

296/203

300/211

301/215

World Motown 235 SF1020 Alum

235/70

2.08/1.60
-
No Pipe

62/53

128/102

188/140

235/165

270/183

281/193

285/200

286/204

World Motown 250 CNC SF600 Alum

250/-

2.10/1.60
-
No Pipe

N/A

73/66

137/123

206/166

262/193

297/211

309/222

319/229

322/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Motown 23 Deg SF600 Alum

235/70

2.08/1.60
-
No Pipe

304/219

World Motown 23 Deg CNC SF600 Alum

235/70

2.08/1.60
-
No Pipe

329/238

World Motown 23 Deg CNC SF1020 Alum

235/70

2.08/1.60
-
No Pipe

306/220

World Motown 23 Deg / Kuntz CNC Alum

250/90

2.10/1.60

World Motown 23 Deg Vortec SF600 Alum

215/70

2.08/1.60
-
No Pipe

283/189

World Motown 23 Deg Vortec SF1020 Alum

215/70

2.08/1.60
-
No Pipe

265/177

Ultra Pro Machining Billet 9 Deg Alum

N/A

2.20/1.625

N/A

70/54

153/103

227/156

300/209

360/243

406/266

421/279

Ultra Pro Machining Billet 9 Deg 4.5" BS I-50 E-50 Alum

N/A

2.23/1.625

N/A

73/54

153/109

237/166

310/220

368/250

415/274

423/287

433/294

Ultra Pro Machining Billet 9 Deg 4.5" BS I-55 E-55 Alum

320/215

2.25/1.60

N/A

65/53

135/104

224/160

297/216

363/249

413/275

440/288

440/295

LSx

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS Ported Texas Speed Alum

N/A

2.02/1.57
3.90
No Pipe

N/A

65/60

131/106

192/146

241/181

273/203

292/218

GM LSX CNC Texas Speed Alum

274/83

2.20/1.61
-
No Pipe

72/64

171/106

249/154

309/200

354/232

384/248

397/261

GM LS1 853 SF600 Alum

200/70

2.00/1.55

66.7

67/52

122/97

178/133

215/156

219/170

227/180

GM LS1 853 Ported MTI Stage IIE Alum

N/A

2.02/1.55

N/A

65/53

135/105

195/141

244/165

276/193

300/211

GM LS1 SF600

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

136/108

196/145

217/170

224/186

230/198

GM LS1 Alum

204/70

2.00/1.55
3.90

N/A

148/103

200/152

216/167

225/181

238/190

GM LS1 Alum

204/70

2.00/1.55

123/108

180/147

219/172

231/193

GM LS1 Alum CHP

204/-

2.00/1.55
-
Pipe

83/62

134/104

189/136

222/165

240/179

252/185

GM LS1 241 Alum HRM

205/70

2.00/1.55
4.03

64/55

137/106

190/141

216/179

228/193

238/203

244/206

GM LS1 Ported AP Engineering Alum

235/-

2.02/1.575
3.970
Pipe

N/A

73/54

150/111

207/155

252/195

285/221

292/231

301/237

GM LS1 Ported ET Performance 215 SF600 Alum

215/-

2.04/1.57
3.90
No Pipe

35-72

74/57

152/106

219/150

266/190

301/204

320/211

GM LS1 Ported ET Performance 224 SF600 Alum

224/-

2.02/1.57
3.90
No Pipe

68/56

143/112

196/158

247/190

280/206

303/214

311/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS1 Ported ET Performance 225 SF600 Alum

225/-

2.08/1.57
4.00
No Pipe

35-72

71/57

153/114

208/164

265/204

308/224

328/231

320/236

GM LS1 CNC M2 Alum

N/A

2.02/1.60

N/A

66/54

141/114

195/160

252/190

292/206

317/220

GM LS1 Ported No Rush Alum

N/A

2.02/1.57
-
No Pipe

N/A

70/57

151/108

209/154

260/188

287/210

288/220

297/227

290/204

GM LS1 Ported No Rush Alum

N/A

2.02/1.57
-
Pipe

N/A

70/57

151/113

209/167

260/212

287/233

288/249

297/254

290/204

GM LS1 Ported Bullet Cylinder Heads Stage I Alum

217/85

2.00/1.57

77/54

144/113

213/158

259/191

262/206

265/213

GM LS1 Ported Bullet Cylinder Heads Stage II Alum

221/91

2.02/1.575

72/57

141/113

203/158

256/191

280/206

296/213

GM LS1 Ported Bullet Cylinder Heads Stage III Alum

225/91

2.08/1.575

72/57

141/113

203/158

256/191

280/206

296/213

GM LS1 CNC RLD Performance Alum

217/-

2.00/1.55

N/A

132/109

187/147

238/175

274/193

281/206

GM 5.3L CCM Alum

205/-

1.89/1.55
3.78

65/52

133/101

189/134

208/161

219/175

223/187

GM 5.3L Ported West Coast Stage 1 CCM Alum

209/-

1.94/1.57
3.78

65/57

141/109

187/150

227/175

256/198

252/211

GM 5.3L Ported Stage II ForceFed High Performance

N/A

2.02/1.57

N/A

67/62

133/109

194/148

242/184

274/205

296/220

GM 5.3L Ported Absolute Speed Alum

N/A

2.02/1.60

N/A

142/116

203/159

256/196

291/215

314/228

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM 5.3L Ported Absolute Speed Alum

N/A

2.02/1.60

N/A

144/117

204/157

256/194

293/218

306/224

GM 5.3L Ported Texas Speed Alum

N/A

-
3.91

N/A

81/52

150/114

208/153

256/183

286/206

285/221

GM 5.3L CNC FFHP Stage 2.5 SF600 Alum

229/84

2.055/1.60
3.905
1 3/4" Pipe

71/64

148/119

215/161

256/199

289/228

311/235

GM 5.3L Ported Patriot Stage 3 SF1020 Alum

N/A

2.055/1.60
3.905

N/A

70/60

149/113

210/152

251/189

284/215

302/230

GM LS1 806 NPS

N/A

2.00/1.55
4.016
No Pipe

N/A

66/55

129/98

182/129

214/155

225/167

231/173

236/177

GM LS1 5.3L 862 Ported ET Performance SF600 Alum

230/-

2.055/1.57
4.00
No Pipe

64-72

82/58

162/115

210/154

265/187

297/209

320/222

GM LS1 5.3L 862 Ported ForceFed SF600 Alum

N/A

2.00/1.55

N/A

140/112

202/157

247/193

282/221

296/232

GM LS1 5.3L Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

67/54

140/122

203/172

251/218

289/244

314/260

GM LS1 5.3L Ported TEA Stage 2 Alum

N/A

2.02/1.57

N/A

67/57

140/111

208/169

252/213

290/241

317/255

GM LS1 5.3L Ported TEA Stage 3 Alum

N/A

67/55

143/115

211/157

257/201

299/256

326/276

GM LM7 5.3L Ported West Coast Stage 2 Alum

N/A

1.94/1.57

305/223

GM LM7 5.3L Ported West Coast Stage 2 Alum

235/85

2.02/1.57

305/223

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LM7 LS 5.3l Ported Patriot Performance Stage I Alum

213/78

2.00/1.55

66.7

63/57

128/103

188/141

234/176

268/196

289/212

GM LS1 5.3l / 5.7L Ported Patriot Performance Stage II OLD Alum

213/78

2.02/1.57

66.7

67/61

133/108

194/147

242/183

274/205

296/220

GM LS1 5.3l / 5.7L Ported Patriot Performance Stage II Alum

220/67

2.02/1.57

63/67

67/61

133/108

194/147

242/183

274/205

296/220

GM LS1 5.7L Ported TEA Stage 1 Alum

N/A

68/50

138/105

203/151

243/191

274/222

292/245

GM LS1 5.7L Ported TEA Stage 1 Alum

N/A

2.00/1.55
3.90
Pipe

N/A

67/60

137/113

202/163

249/202

288/228

296/244

GM LS1 5.7L Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

68/52

139/108

200/160

248/209

283/237

300/255

GM LS1 5.7L Ported West Coast Stage 2 Alum

N/A

2.02/1.57

293/223

GM LS 5.3L 241 Weingartner Racing Alum

N/A

2.00/1.55
4.125
No Pipe

N/A

74/54

156/106

214/151

252/176

251/187

256/191

261/195

GM LS 5.3lL Ported PRC Stage 2.5 Alum

215/-

2.02/1.575
3.91
No Pipe

N/A

147/111

206/145

254/185

291/204

312/223

GM LS1 5.7L 241 Advanced Induction SF600 Alum

204/-

2.00/1.55
3.90
No Pipe

N/A

66/55

139/101

193/136

215/160

226/171

233/180

238/183

GM LS1 5.7L 241 Ported 219 Advanced Induction SF600 Alum

219/-

2.00/1.55
3.90
No Pipe

N/A

66/54

143/101

208/144

251/174

271/197

285/209

287/215

GM LS1 241 Ported Chad Speier Alum

N/A

2.02/1.57
4.00
1 7/8" Pipe

N/A

155/112

219/155

263/187

278/211

289/233

295/244

298/250

301/253

303/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS1 6.0L Ported AP Engineering Stage I Alum

N/A

2.02/1.575
3.970

N/A

66/62

139/117

213/161

259/200

283/219

297/229

305/243

GM LS1 6.0L Ported AP Engineering Alum

235/90

2.08/1.60
4.125
Pipe

N/A

75/63

153/115

217/163

265/207

310/243

327/262

328/272

329/273

GM LS1 6.0L Ported ET Performance Alum

237/-

2.055/1.57
3.90

64-70

67/52

138/112

198/159

249/182

286/200

311/210

GM LS2 243 Ported Greg Good 2 Alum

N/A

2.055/1.60
4.00

N/A

147/126

225/171

279/215

321/237

337/244

GM LS1/LS2 Ported PRC Alum

215/84

2.04/1.60
4.00
No Pipe

68/56

145/115

214/167

271/202

304/219

318/238

GM LS1/LS2 Ported PRC Alum

237/85

2.10/1.60
4.03
No Pipe

66/57

147/117

225/170

284/206

325/227

334/241

GM LS6

N/A

2.00/-

N/A

156/-

204/-

243/-

268/-

278/-

GM LS6 SF600

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

62/59

126/108

184/143

224/163

251/176

257/183

GM LS6/LS2 243 / 799 Advanced Induction SF600 Alum

211/-

2.00/1.55
4.00
No Pipe

N/A

66/52

139/110

194/147

236/167

265/175

260/183

262/186

GM LS6/LS2 243 / 799 Ported 226 Advanced Induction SF600 Alum

226/-

2.00/1.55
4.00
No Pipe

N/A

66/53

146/109

215/144

259/170

290/197

300/212

301/221

GM LS6/LS2 243 / 799 Ported 232 Advanced Induction SF600 Alum

226/-

2.00/1.55
4.00
1 7/8" Pipe

N/A

69/53

146/115

214/157

258/204

293/256

305/271

315/277

GM LS6/LS2 243 / 799 Ported Flow Tech Induction Alum

N/A

2.00/1.55
3.90
1 3/4 Pipe

N/A

65/55

146/120

200/164

248/192

285/202

303/209

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6/LS2 CNC RLD Performance Alum

236/-

2.00/1.55

139/116

200/151

256/184

298/204

317/215

308/222
@.650

GM LS6 243 / 317

210/75

2.00/1.55

64/71

236/185

GM LS6 243 / 799 Ported PRC Stage 1 SF600 Alum

226.5/75

2.00/1.55

64.5

72/63

142/121

205/154

255/191

286/214

305/220

GM LS6 243 / 799 Ported PRC Stage 2 SF600 Alum

238/75

2.02/1.57

64.5

75/66

151/124

209/160

260/194

293/217

315/227

GM LS6 243 Ported West Coast Stage 2 Alum

233.3/86.3

2.02/1.57
4.03
Pipe

70/58

142/119

202/167

246/206

288/221

312/234

GM LS6 243 CNC M2 Race Systems Alum

235/-

2.08/1.60
4.03

66/54

141/114

195/160

252/190

292/206

319/215

313/220

GM LS6 243 Out of Box Ported MTI Alum

N/A

2.02/1.57

N/A

70/53

138/103

201/144

250/190

285/214

316/226

312/230

GM LS6 243 NPS

N/A

2.00/1.55
-
No Pipe

N/A

62/54

134/103

191/131

230/153

252/165

248/173

248/-

GM LS6 243 Ported NPS

N/A

2.00/1.55
-
No Pipe

N/A

65/53

132/106

200/148

252/178

285/194

303/203

296/208

301/212

GM LS6 317 VJ Milled 0.030 Weingartner Racing Alum

N/A

2.00/1.55
4.125
No Pipe

N/A

92/69

169/126

225/159

263/180

267/188

268/190

GM LS6 317 West Coast Alum

N/A

2.00/1.57
4.03
No Pipe

N/A

65/53

142/112

204/147

233/165

250/174

253/184

GM LS6 317 Ported West Coast Stage 2 Alum

232.4/86.3

-
4.03
Pipe

73.5

70/59

145/119

210/174

250/213

288/228

294/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6 317 / LQ9 Ported Meaux Racing Alum

N/A

2.08/1.60

134/117

212/172

258/216

286/231

296/238

302/241

GM LS6 317 Ported Bullet Cylinder Heads Alum

N/A

2.00/1.575

N/A

96/58

141/109

199/148

241/175

263/189

282/210

GM LS6 317 Ported TEA Stage 1 Alum

N/A

2.00/1.555
4.00
1.875 Pipe

64/57

141/114

212/166

261/210

302/235

314/246

GM LS6 CNC SDPC

N/A

2.00/1.55

N/A

67/50

142/104

210/150

254/185

290/203

286/212

GM LS6 Ported Stage II ForceFed High Performance

N/A

2.02/1.60

59/64

73/69

143/127

205/161

246/198

282/223

309/231

GM LS6 Ported TEA Stage 1 Alum

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

64/47

145/114

215/166

254/222

293/244

310/256

GM LS6 Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

67/50

139/119

205/174

254/224

294/247

320/257

323/-

GM LS6 Ported TEA Stage 1.5 Jasson Alum

N/A

2.02/1.57

N/A

281/258

306/268

GM LS6 Ported TEA Stage 2 Alum

229/84

2.04/1.57
3.90
1.875 Pipe

67/54

139/120

219/179

271/224

308/248

320/260

GM LS6 Ported TEA Stage 2 HRM Alum

226/78

2.055/1.57
4.03

66/60

144/118

214/163

269/199

310/223

329/235

310/231

GM LS6 Ported TEA Stage 2.5 Out of Box SF600 Alum

253/-

2.02/1.57

N/A

73/59

140/121

205/175

256/228

295/264

322/278

337/-

GM LS6 Ported TEA Stage 3 Alum

N/A

73/52

148/126

219/182

269/233

311/260

346/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6 Ported Katech Alum

240/88

2.10/1.55

N/A

75/51

153/127

218/167

267/207

306/221

330/230

GM LS6 Ported Patriot Alum

N/A

2.02/1.57

59/64

72/65

140/124

202/160

244/196

280/220

304/220

GM LS6 Ported Patriot - Demirjian Alum

235/85

2.05/1.60
3.90
1 3/4 Pipe

65/54

135/102

192/163

238/169

273/181

294/188

GM LS6 Ported Stage 3 Precision Porting Alum

220/80

2.05/1.57

91/67

164/107

224/161

270/192

305/219

298/233

GM LS6 Ported ET Performance Alum

234/-

2.02/1.57
4.155

N/A

66/55

146/120

198/163

245/188

282/200

305/208

GM LS6 Ported ET Performance 234 Alum

234/-

2.055/1.57
3.90

N/A

71/57

137/106

203/145

252/190

285/203

305/210

GM LS6 Ported ET Performance 237 Alum

237/-

2.08/1.57
4.155

N/A

68/56

151/119

207/168

260/205

301/223

326/228

GM LS6 Ported Texas Speed 237 Alum

237/-

2.04/1.57

N/A

151/124

209/160

260/194

293/217

315/227

GM LS7 Ported Alum CCM

270/84

2.20/1.61
4.03

71/60

145/120

222/159

271/192

315/207

348/219

352/221

GM LS7 Ported ET Performance Alum

250/-

2.125/1.60
4.00

35-72

73/56

154/110

236/166

287/199

321/214

345/222

GM LS7 CNC Lingenfelter Alum

275/84

2.205/1.615
-
No Pipe

174/120

256/164

312/200

352/222

384/234

396/242

GM LS7 CNC Lingenfelter Alum

N/A

2.205/1.615
-
Pipe

174/127

256/180

312/217

352/240

384/260

396/273

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS Greg Good 245 Alum

N/A

2.125/1.60
4.03
No Pipe

N/A

148/117

228/160

301/196

339/247

354/263

355/272

GM LS7 8452 12 Deg West Coast SF600 Alum

259/86

2.20/1.61
4.155
No Pipe

163/115

245/168

306/206

344/218

370/226

336/229

GM LS7 CNC West Coast Alum

267/99

2.205/1.625
4.155
No Pipe

N/A

81/58

161/108

250/163

276/205

357/232

389/245

380/251

GM LS7 Ported PRC SF600 Alum

285/-

2.25/1.61
4.125

169/119

248/179

311/211

353/234

386/235

407/246

GM LS7 7.0l HRM Alum

240/-

2.10/1.60
-
No Pipe

N/A

161/113

245/172

307/200

346/211

374/219

347/224

344/228

GM LS7 CNC SDPC

283/86

2.20/1.61

70/58

159/111

237/157

301/199

349/220

378/229

389/238

GM LS7 CNC RLD Performance Alum

N/A

2.20/1.61

N/A

81/61

172/122

252/189

314/236

363/262

376/272

390/281

393/281
@.750

GM LQ9 Ported Patriot Stage 2 Alum

N/A

2.055/1.57

70/66

138/122

200/162

241/203

277/227

304/235

GM LQ9 Ported Patriot Stage 3 Alum

225/83

2.08/1.60
4.125

76/66

145/122

207/163

254/205

295/229

320/236

GM LQ9 / LS6 / LS2 Ported Patriot Stage 2 Alum

227/70

2.055/1.57

72/66

140/124

202/160

246/199

280/220

304/229

GM LQ9 / LS6 / LS2 Ported Patriot Stage 3 Alum

227/70

2.08/1.60

75/66

147/124

209/164

255/206

297/229

320/235

GM LS Ported ET Performance 245 SF600 Alum

245/-

2.10/1.57
4.00
No Pipe

N/A

73/57

152/114

209/164

266/204

312/224

338/231

320/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS Ported ET Performance 245 Redone I-45 E-50 SF600 Alum

245/-

2.125/1.55
4.03

149/-

225/-

281/-

325/-

354/-

344/-

GM LS Ported ET Performance 255 SF600 Alum

255/-

2.10/1.57
4.00
No Pipe

N/A

71/55

147/113

227/159

285/213

324/229

349/236

360/242

GM LS Ported ET Performance 265 SF600 Alum

265/-

2.10/1.57
4.00
No Pipe

N/A

73/55

155/113

212/159

271/213

323/229

352/236

373/242

GM LS98/76 Ported Bullet Cylinder Heads Alum

N/A1

2.00/1.575

N/A

82/66

162/114

233/151

282/179

319/198

344/212

358/223

Chevy L92 Alum CCM

260/90

2.16/1.59
4.03

72/63

148/126

212/162

264/189

302/205

322/214

316/221

Chevy L92 Livernois Motorsports Alum

N/A

2.16/1.59
4.125

N/A

79/58

153/114

225/147

276/170

310/183

332/189

330/193

317/196

Chevy L92 Weingartner Racing Brez Alum

N/A

2.16/1.59
4.155
No Pipe

N/A

66/56

153/114

221/160

309/189

330/203

325/211

332/214

Chevy L92 Ported Head Shop Alum

N/A

2.16/1.59

N/A

158/114

221/160

280/199

312/226

337/244

346/250

Chevy L92 West Coast Alum

261/90

2.16/1.59
4.03
2 1/2 Pipe

69.8

75/64

154/126

225/162

275/190

309/205

329/215

310/221

Chevy L92 West Coast Alum

261/90

2.16/1.59
4.155
No Pipe

69.8

74/63

153/121

225/157

277/176

313/188

336/194

327/198

Chevy L92 CNC West Coast Stage 2 Alum

268/99

-
4.03
No Pipe

75/63

160/117

224/182

275/213

308/232

344/243

355/248

Chevy L92 CNC West Coast Stage 2 Alum

268/99

-
4.155
No Pipe

75/65

160/116

227/180

280/219

323/240

354/248

364/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L92 CNC West Coast Stage 3 Alum

N/A

2.20/-
4.155

N/A

79/-

161/-

236/-

293/-

336/-

365/-

380/-

Chevy L92 CNC West Coast Stage 3 Alum

280/99

2.20/1.60

79/57

161/118

237/182

293/222

336/240

365/249

375/254

Chevy L92 CNC West Coast HRM Alum

280/97

2.20/1.60

71/60

159/116

227/174

270/218

320/234

349/247

361/253

Chevy L92 Lingenfelter Alum

261/89

2.165/1.59

N/A

152/117

222/155

272/180

306/191

328/199

304/202

Chevy L92 CNC Competition CNC Alum

266/93

2.165/1.59

68.5

76/58

161/117

229/171

282/210

323/230

343/240

353/245

Chevy L92 / LS3 821 Alum HRM

260/90

2.165/1.59

67/59

147/116

211/157

259/188

297/207

312/216

314/223

Chevy L92 / L76 CNC GMPP CCM Alum

280/100

2.16/1.59
4.065

N/A

150/105

222/140

260/168

298/190

332/201

Chevy L92 364 CNC GMPP HRM Alum

279/95

2.165/1.59

71/61

150/110

226/154

273/184

313/206

341/219

Chevy L92 / LS3 Lingenfelter Alum

261/89

2.165/1.59

N/A

156/120

226/158

276/183

310/194

332/202

308/205

Chevy L92 / LS3 CNC Lingenfelter Alum

275/93

2.165/1.59
4.065

N/A

156/116

228/160

280/199

320/218

346/229

340/235

Chevy L92 / LS3 CNC Lingenfelter Alum

275/93

2.165/1.59
4.125

N/A

158/116

230/161

282/201

322/220

350/231

344/237

Chevy L92 / LS3 823 CNC Lingenfelter HRM Alum

271/93

2.165/1.59

67/54

141/112

207/173

261/217

303/238

341/252

360/254

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L92 / LS3 Ported TEA Stage 2 Alum

287/95

2.165/1.59
4.125
1.875 Pipe

71/55

155/118

240/190

302/253

344/273

360/284

Chevy L92 / LS3 823 Ported TEA HRM Alum

279/91

2.165/1.59

70/57

144/110

226/153

285/191

326/219

350/232

365/241

Chevy L92 / LS3 Ported Head Shop Alum

N/A

2.165/1.59

N/A

221/160

280/199

312/226

337/244

346/250

Chevy L92 / LS3 Advanced Induction SF600 Alum

260/-

2.165/1.59
4.03
No Pipe

N/A

80/58

152/118

219/157

261/183

280/195

306/202

308/207

Chevy L92 / LS3 Ported 267 Advanced Induction SF600 Alum

267/-

2.165/1.59
4.03
No Pipe

N/A

75/55

155/109

233/150

292/182

329/204

349/217

364/227

Chevy L92 / LS3 Ported PRC Alum

N/A

2.165/1.59

N/A

154/117

223/179

282/202

323/219

349/232

Chevy L92 / LS3 Ported LME Alum

N/A

2.165/1.60
4.07
No Pipe

N/A

82/73

157/124

242/171

292/206

345/232

367/239

Chevy L92 / LS3 CNC RLD Performance Alum

277/-

2.16/1.59

68-69

144/124

224/179

276/198

313/223

338/248

347/255

Chevy L92 364 / 716 CNC SD8760 / SD8800 Alum

279/99

2.165/1.59
4.155

69/46

154/100

222/136

266/166

309/189

345/189

358/209

Chevy L92 Ported TEA Alum

N/A

2.165/1.59
4.03
Pipe

67/53

150/118

226/173

287/219

332/247

353/264

368/266

Chevy LS3 Darin Morgin Alum

N/A

2.165/1.60

N/A

158/-

224/-

273/-

305/-

309/-

300/-

309/-

316/-

Chevy LS3 Ported Darin Morgin I-45 T-90% Alum

N/A

2.165/1.60

N/A

159/-

229/-

282/-

320/-

338/-

343/-

349/-

356/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LS3 Ported Darin Morgan / Chad Speier I-45 E-45 Alum

265/-

2.165/1.60
4.06

N/A

141/111

219/146

281/175

322/205

349/220

355/225

367/230

Chevy LS3 Ported Smithberg Racing Alum

N/A

2.165/1.59
4.07
No Pipe

N/A

71/41

151/104

233/153

295/192

335/216

358/227

Chevy LS99 Ported Mike / New Era Performance Alum

N/A

2.165/1.60

N/A

157/-

233/-

300/-

318/-

340/-

345/-

355/-

363/-

Chevy LS9 West Coast Alum

N/A

2.16/1.60
4.155

N/A

75/60

156/116

216/160

265/188

291/205

280/210

284/215

Chevy LS9 Ported West Coast Alum

N/A

2.16/1.60
4.155

N/A

75/55

154/113

223/172

274/216

318/234

351/242

357/246

Corvette LT1 C7 Stock Bill Jones Alum

N/A

2.13/1.60
4.03
No Pipe

N/A

73/51

137/116

206/146

262/189

304/202

295/206

302/208

AFR LS1 Street SF600 Alum

205/78

2.02/1.60
3.90
1 7/8" Pipe

66/76

140/112

200/170

251/203

281/221

298/230

AFR LS1 Street SF600 Out of Box Alum

205/-

2.02/1.60
3.90
1 7/8" Pipe

N/A

144/116

208/170

255/206

287/221

302/232

AFR LS1 Street Chamber Wall opened to 4" Alum

205/78

2.02/1.60
4.00
1 7/8" Pipe

158/122

220/170

264/217

285/232

300/241

AFR LS1 Street Chamber Work / Mild Port Work Alum

205/78

2.02/1.60
-
1 7/8" Pipe

N/A

151/129

220/190

266/228

293/242

301/248

AFR LS1 210 Mongoose Street V2 Alum

210/84

2.02/1.60
3.90
1 7/8" Pipe

N/A

153/124

214/178

262/214

293/237

302/237

AFR LS1 Street 215 SF600 Alum

215/84

2.02/1.60
-
1 7/8" Pipe

N/A

152/119

218/180

264/234

295/234

314/245

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LS1 215 Mongoose Strip V2 Alum

215/84

2.02/1.60
4.06
1 7/8" Pipe

N/A

154/132

219/180

264/221

297/239

312/246

AFR LS1 Street 225 Small Bore Old SF600 Alum

225/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

141/116

205/171

252/204

287/222

310/232

AFR LS1 Street 225 Small Bore SF600 Alum

225/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

142/118

205/175

254/209

288/225

312/237

AFR LS1 Street 225 Small Bore Pray Ported Meaux Racing SF600 Alum

N/A

2.08/1.60
3.90
No Pipe

146/114

203/156

260/196

306/216

331/230

333/237

AFR LS1 Street 225 Large Bore SF600 Alum

225/85

2.08/1.60
4.125
1 7/8" Pipe

66/76

150/120

220/178

266/220

304/241

320/250

AFR LS1 230 Mongoose Small Bore V2 Alum

230/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

157/129

224/183

272/225

311/244

324/252

AFR LS1 230 Mongoose Large Bore V2 Alum

230/85

2.08/1.60
4.125
1 7/8" Pipe

66/76

158/129

230/183

282/225

320/244

328/252

AFR LS1 Street 245 Large Bore SF600 Alum

245/87

2.16/1.60
4.125
1 7/8" Pipe

64/74

156/125

225/185

274/225

315/247

345/260

AFR LSX 245 Mongoose Strip Large Bore SF600 Alum

245/88

2.16/1.60
4.125
1 7/8" Pipe

65/73

164/131

233/185

290/227

332/247

356/257

AFR LS1 245 HRM Alum

245/87

2.16/1.60
4.03

68/55

152/117

225/176

278/214

318/230

343/241

341/242

AFR LS1 Ported TEA Stage 3 Alum

N/A

68/55

141/124

207/187

262/241

304/268

341/278

346/282

AFR LS1 Ported ET Performance Alum

240/-

2.08/1.57
4.00

62-72

78/52

151/105

219/153

270/200

301/220

323/230

333/235

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LS1 Ported ET Performance Alum

250/-

2.10/1.57
4.10

78/55

154/111

215/161

276/210

318/228

343/236

352/244

345/-

AirWolf LS3 Ported Dr Js Performance Alum

N/A

2.20/1.60

64-72

79/52

155/115

231/158

291/182

329/220

354/245

375/255

385/266

391/273

398/278

AirWolf LS7 Ported Dr Js Performance Alum

N/A

2.20/1.60
-
1 7/8" Pipe

64-72

74/52

158/109

225/156

301/201

337/229

367/245

397/229

404/270

All PRO LS Ported Meaux Racing Alum

N/A

2.10/1.60

N/A

151/109

215/162

267/198

303/225

324/240

335/246

338/248

All PRO LS Alum

244/88

2.08/1.60

62/72

All PRO LS Alum

250/88

2.125/1.60

62/72

All PRO LSW -1 Ported West Coast Alum

285/108

2.20/1.60
4.155

75/54

155/109

242/162

309/213

355/241

382/255

403/261

410/262
@.750

All PRO LSW -2 310 Ported West Coast Alum

310/116

2.20/1.60
4.155

153/111

225/170

289/211

344/235

375/253

398/262

417/271

423/273
@.850

All PRO LSW -2 330 Ported West Coast Alum

330/120

2.25/1.60
4.155

143/112

212/173

272/212

333/237

386/257

419/266

437/274

446/280

All PRO LSW LS3 -3 265 Ported West Coast Alum

265/100

2.165/1.57
4.03

70/54

160/103

245/155

301/200

343/221

372/239

384/248

All PRO LSW LS3 -3 278 Ported West Coast Alum

278/108

2.20/1.60
4.155

77/54

152/109

241/162

312/213

357/241

387/241

405/262

All PRO LSW 12 Deg Alum

272/100

2.15/1.60

62/72

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO LSW 12 Deg Alum

284/100

2.20/1.625

62/72

390/260

All PRO LSW LS7 Retro Ported West Coast Alum

267/108

2.20/1.60
4.155

75/54

157/109

253/162

321/213

362/241

390/255

400/262

All PRO LSW LS7 Ported West Coast Alum

267/108

2.25/1.615
4.155

79/54

166/109

253/162

323/213

364/241

394/255

412/263

All PRO LSW LS7 12 Deg Ported West Coast Alum

280/100

2.18/1.60
4.155

N/A

73/52

148/104

218/156

287/206

331/227

359/240

380/248

391/254

All PRO LSW LS7 12 Deg Ported West Coast Alum

285/105

2.20/1.60
4.155
No Pipe

58/70

75/54

161/108

242/162

295/213

343/241

379/255

401/261

All PRO LSW LS7 12 Deg Ported West Coast Alum

312/118

2.25/1.60
4.155
No Pipe

143/112

245/167

319/212

367/242

400/255

426/265

444/272

All PRO LSW LS7 12 Deg Ported West Coast Alum

330/120

2.25/1.60
4.155
No Pipe

143/112

219/173

272/212

333/237

386/257

419/266

437/274

446/280

All PRO LSW LS7 12 Deg Ported Jones Engineering 78/135 Alum

274/-

2.20/1.60

165/110

246/144

316/204

359/227

372/240

377/250

390/254

All PRO LSW LS7 12 Deg Ported ET Performance Alum

N/A

64/47

148/100

228/142

318/183

375/214

402/237

414/250

419/258

422/263

Avenger LSx CNC Alum

225/75

2.08/1.60

62/62

127/129

187/179

240/204

282/222

308/233

320/238

324/240

Brodix BR7 12 Deg Alum

262/-

2.204/1.614

150/113

244/158

294/188

334/208

360/216

Brodix BR7 Ported West Coast Alum

265/99

2.205/1.615
4.155

75/54

155/110

252/156

316/202

357/226

387/242

395/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BR7 Ported West Coast Alum

275/99

2.25/1.615
4.155

80/54

164/110

255/156

318/202

364/226

394/242

411/250

Brodix STS BR7 12 Deg Alum

264/-

2.204/1.614

166/119

247/171

309/208

351/221

375/229

Brodix STS BR7 264 12 Deg Alum

264/-

2.204/1.614

159/116

240/169

303/208

343/224

369/233

364/240

Brodix STS BR7 273 12 Deg I-50 E-45 Alum

273/-

2.25/1.614

147/116

233/169

286/208

344/224

381/233

416/240

Dart PRO1 LS1 205 Alum

205/85

2.02/1.60
4.00

156/109

215/154

258/187

290/205

Dart PRO1 LS1 225 Alum

225/85

2.05/1.60
4.00

144/109

202/154

254/187

290/205

313/214

Dart PRO1 LS1 225 Bret Bauer Roll Clean Up Alum

230/-

2.05/1.60

N/A

144/112

204/151

260/193

297/214

312/225

320/232

Dart CNC Out of Box Alum

248/-

2.055/1.60
4.03
No Pipe

N/A

70/53

146/105

210/146

253/184

295/213

318/227

314/232

315/236

Dart PRO1 LS1 CNC 250 HRM Alum

249/94

2.08/1.60
4.03

70/54

144/110

216/157

265/196

304/225

318/235

317/240

Dart PRO1 LS1 Ported TEA Alum

240/90

2.08/-
4.00

N/A

70/53

144/118

213/178

271/233

309/261

336/275

Dart PRO1 LS1 Ported TEA Alum

240/90

2.10/-
4.155

N/A

69/53

147/122

221/210

278/265

325/292

354/301

358/306

Edelbrock/ Lingenfelter 61969 LS1 SF600 Alum

202/83

2.02/1.57
3.90
No Pipe

141/115

200/162

245/196

282/209

300/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock/ Lingenfelter 61899 SF1020 Alum

230/78

2.10/1.60
4.00

147/109

211/161

260/193

298/214

321/224

316/227

Edelbrock/ Lingenfelter (LPE) HRM Alum

234/84

2.10/1.60
4.03

63/53

129/110

191/160

245/196

284/213

318/222

305/227

Edelbrock RPM XT LS1/LS2/LS6 61949 Semi-CNC SF1020 Alum

212/76

2.02/1.57

64/57

134/107

193/147

239/180

274/200

285/210

Edelbrock RPM XT LS1/LS2 61949 Semi-CNC Alum

214/78

2.02/1.57
3.90

137/111

199/153

239/188

276/204

286/212

Edelbrock LS1 4.8l / 5.3L Ported West Coast Alum

200/81

2.00/1.57
3.78

65/63

132/115

193/164

235/192

267/210

285/217

Edelbrock LS1 Ported West Coast Alum

215/88

2.055/1.60
4.03
Pipe

68/56

138/121

207/171

257/207

291/227

307/232

Edelbrock LS1 LS2 Ported West Coast Alum

245/88

2.08/1.57
4.03
Pipe

69/65

142/119

211/167

264/210

304/228

330/236

337/240

Edelbrock LS1 LS2 Ported West Coast HRM Alum

245/88

2.08/1.57
4.03

69/54

146/115

203/171

254/210

300/231

325/238

324/240

HRD Ported All Pro LS1/LS6 Alum

N/A

2.00/1.55

N/A

155/115

219/166

259/204

295/219

Mast Black Label Ported HRM Alum

270/93

2.20/1.60

74/54

141/106

229/154

299/200

341/232

371/248

365/261

Mast Black Label Ported LS7 HRM Alum

274/84

2.20/1.61

76/65

163/118

245/171

307/212

350/229

379/243

395/249

PRC LS3/L92 13 Deg Ported

N/A

2.165/1.60

60-68

154/117

221/170

281/205

325/225

354/235

361/243

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

PRC LS3/L92 13 Deg Ported

260/-

2.185/1.60

60-68

157/117

224/170

279/205

329/225

360/235

380/243

PRC LS Ported

237/85

2.10/1.60
4.30
No Pipe

66/57

147/117

225/170

284/206

325/227

334/235

ProComp LS1 HRM Alum

219/79

2.055/1.60
4.03

72/57

148/113

203/155

261/195

301/213

321/219

306/224

ProComp LS3 CNC HRM Alum

279/94

2.20/1.60

62/53

140/116

206/161

260/194

317/225

350/232

350/244

ProComp LS3 CNC Alum

N/A

2.18/1.60
-
1 7/8 Pipe

82/57

171/114

242/169

281/213

321/240

364/256

382/264

371/269

ProComp LS3 Ported Dr Js Performance HRM Alum

279/94

2.20/1.60

65/54

141/118

211/163

270/196

321/225

357/239

359/246

ProComp LS7 CNC HRM Alum

265/84

2.20/1.61

74/52

158/109

225/156

301/201

337/229

367/245

394/259

Pro-Filer LSx Alum

215/-

2.20/1.60

308/-

Pro-Filer LSx Alum

215/-

2.02/1.60

141/104

202/154

249/192

280/212

301/227

305/231

313/235

Pro-Filer LSx Alum

235/-

2.08/-

341/-

Pro-Filer LSx CNC Smithberg Racing Saenz S-600 Alum

250/97

2.10/1.60
4.03
No Pipe

70/52

136/85

194/122

252/161

291/201

323/227

342/240

Pro-Filer LSx CNC Smithberg Racing Alum

250/97

2.10/1.60
4.03
No Pipe

68/52

150/85

208/122

262/161

312/201

338/227

349/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Elite CNC Gen III

210/97

2.04/1.57

74/57

152/106

219/150

266/190

301/204

320/211

RHS Pro Elite CNC Gen III

225/97

2.04/1.57

71/57

153/114

214/163

276/204

308/222

328/231

320/236

Texas Speed 237 HRM Alum

238/85

2.10/1.60
4.03

72/59

149/115

226/176

281/217

317/234

336/242

351/244

Texas Speed 285 CNC PRC HRM Alum

285/85

2.25/1.61

75/66

167/119

248/179

311/211

353/224

386/235

403/246

Trick Flow 205-LS1 SF600 Alum

205/-

2.00/1.575

299/237

Trick Flow 215-LS1 TRE SF1020 Alum

N/A

2.04/1.57

N/A

70/44

130/100

192/162

248/198

282/210

286/214

284/-

Trick Flow 215-LS1 CNC TRE SF1020 Alum

N/A

2.04/1.57

N/A

80/47

139/105

208/167

262/203

290/219

308/230

318/-

Trick Flow 215-LS1 Meaux Racing Out of Box CNC TRE SF600 Alum

N/A

2.04/1.57
4.03
No Pipe

N/A

118/104

193/159

252/194

296/211

292/219

293/224

293/226

Trick Flow 215-LS1 CNC SF600 Alum

215/80

2.04/1.575
3.90
1 7/8" Pipe

68/55

142/115

215/185

260/230

300/251

320/259

Trick Flow 215-LS1 Ported TEA Alum

215/80

2.05/1.60
3.90
1 7/8" Pipe

66/54

138/118

218/187

272/231

308/252

324/262

Trick Flow 220-LS1 SF600 Alum

220/80

2.04/1.575
4.03
1 7/8" Pipe

305/233

Trick Flow 220-LS2 SF600 Alum

220/-

2.055/1.575
4.03
1 7/8" Pipe

67/47

133/104

211/167

261/202

292/222

305/233

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 225-LS2 CNC SF600 Alum

225/80

2.055/1.575

68/55

142/115

220/185

279/230

316/251

338/259

Trick Flow 225-LS2 CNC Out of Box Alum

N/A

2.055/1.575

N/A

69/56

148/113

219/175

267/217

310/229

328/239

Trick Flow 225-LS2 Ported TEA Alum

225/80

2.055/1.60

67/54

141/118

223/187

279/231

316/252

335/262

Trick Flow 225-LS Ported TEA Alum

225/80

2.055/1.60
4.03
1 7/8" Pipe

71/61

144/120

222/187

279/233

316/260

336/274

Trick Flow 230 Advanced Induction SF600 Alum

230/-

2.055/1.575
4.00
1 7/8" Pipe

N/A

69/55

146/108

214/155

274/203

313/223

334/244

338/248

Trick Flow 235-LS2 Ported TEA Alum

235/80

2.08/1.60
4.125
1 7/8" Pipe

68/53

146/124

235/199

293/244

329/265

344/276

Trick Flow 245-LS2 Ported TEA Alum

245/85

2.10/1.60
4.185
1 7/8" Pipe

69/56

146/130

237/201

294/249

336/269

353/276

Trick Flow 245-LS2 Ported TEA Nitrous Exh Alum

245/85

2.10/1.60
4.185
1 7/8" Pipe

69/55

146/122

237/199

294/250

336/277

353/290

Trick Flow 245-LS Ported TEA Out of Box Meaux Racing SF600 Alum

N/A

2.10/1.60
4.125
No Pipe

N/A

138/111

223/162

280/203

314/223

335/230

318/234

326/238

Trick Flow 245-LS Ported TEA Short Turn Ported Meaux Racing SF600 Alum

N/A

2.10/1.60
4.125
No Pipe

N/A

138/111

223/163

282/205

316/227

341/235

339/240

334/242

Trick Flow 265-LS2 Ported TEA Alum

265/85

2.10/1.60
4.155
2 Pipe

59/58

128/129

210/189

281/233

340/256

352/267

368/272

377/274

382/277

388/279

Trick Flow 265-LS2 Ported TEA Nitrous Exh Alum

265/85

2.10/1.60
4.155
2 Pipe

59/55

128/122

210/199

281/250

340/277

352/290

368/298

377/303

382/305

388/306

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 235-LSX CNC SF600 Alum

235/80

2.08/1.60
4.125
1 7/8" Pipe

65/55

144/124

229/196

287/242

323/260

340/270

Trick Flow 235 CNC HRM Alum

234/80

2.08/1.60
4.03

67/57

144/113

221/172

272/213

309/230

333/240

315/244

Trick Flow 255 GenX 12 Deg Alum

255/87

2.165/1.60
4.065
1 7/8 Pipe

71/59

146/113

231/171

294/215

334/240

363/252

382/258

Trick Flow 255-LS3 Ported TEA SF600 Alum

255/87

2.165/1.60
4.06
1.875 Pipe

71/59

140/117

225/168

288/213

331/236

361/247

373/254

Trick Flow 260-LS7 Ported TEA Alum

260/87

2.20/1.60
4.125
2 Pipe

71/58

148/113

233/168

296/212

340/237

375/249

393/254

World Warhawk LS1X Alum

235/80

2.08/1.60

64/72

300/219

World Warhawk LS1X Alum

235/80

2.08/1.60

N/A

65/63

137/119

202/172

247/194

280/206

304/211

World Warhawk LS1 15 Deg SF600 Alum

235/87

2.08/1.60
-
No Pipe

64/72

72/63

146/118

209/155

254/185

282/204

304/215

313/221

321/223

World Warhawk LS1 15 Deg Kuntz CNC SF600 Alum

255/90

2.10/1.60
-
No Pipe

67/62

137/123

208/169

268/208

307/233

332/246

345/253

347/256

World Warhawk 255 CNC HRM Alum

255/87

2.10/1.60
4.03

63/56

137/115

200/165

260/198

297/214

313/224

328/233

World Warhawk 12 Deg SF600 Alum

285/106

2.20/1.60

64/72

58/35

123/66

194/111

256/148

304/175

333/193

354/203

335/211

World Warhawk 12 Deg Kuntz CNC SF600 Alum

296/110

2.20/1.60
-
No Pipe

76/55

178/108

241/160

309/198

357/225

387/249

396/264

403/274

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

LTx

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1

170/62

1.94/1.50

187/139

190/145

Chevy LT1

170/62

1.94/1.50

60/46

120/94

171/122

197/140

207/154

201/156

Chevy LT1 Night Train

N/A

1.94/-

N/A

56/-

106/-

164/-

205/-

210/-

209/-

Chevy LT1 NPS

N/A

1.94/1.50
4.016
No Pipe

N/A

61/50

119/97

170/126

203/148

209/155

208/158

Chevy LT1 '94 Kendrick Auto

N/A

1.94/1.50

N/A

61/48

114/88

163/117

187/135

190/144

Chevy LT1 '94 Ported Kendrick Auto

N/A

1.94/1.50

N/A

69/50

139/101

181/130

223/159

247/178

Chevy LT1 290 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

73/52

142/106

205/138

237/152

236/157

239/201

Chevy LT1 372 Alum CHP

170/62

1.94/1.50
-
No Pipe

72/52

129/100

180/130

213/142

214/149

215/154

Chevy LT1 372 Alum CHP

170/62

1.94/1.50
-
Pipe

72/53

129/101

180/136

213/155

214/165

215/171

Chevy LT1 374 Ported Alum

N/A

2.00/1.55

N/A

65/48

130/89

184/121

209/148

227/158

240/163

Chevy LT1 374 Ported Smithberg Racing Alum

190/75

2.00/1.55

285/-

295/-

Chevy LT1 561 Night Train Alum

N/A

1.94/-

N/A

58/-

115/-

170/-

213/-

221/-

218/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1 561 TriPinTaZ Alum

N/A

1.94/1.50

N/A

63/46

120/93

170/121

198/142

201/150

202/154

Chevy LT1 561 Ported Smithberg Racing Alum

190/80

2.00/1.56
4.03
No Pipe

69/50

140/109

199/139

2339/164

273/183

283/196

Chevy LT1 643 TriPinTaZ Alum

N/A

1.94/1.50

N/A

67/47

121/90

170/120

205/139

206/147

205/150

Chevy LT1 643 '96 CHW Alum

172/65

1.94/1.50

62/52

125/100

175/130

209/152

230/161

223/173

223/179

Chevy LT1 643 '96 Ported CHW Alum

188/70

2.02/1.50

70/64

144/112

199/138

237/155

262/164

269/178

265/185

Chevy LT1 Ported Brian Alum

N/A

2.00/1.56

66/48

129/93

183/130

229/168

262/189

265/192

Chevy LT1 Ported CDN Performance Stage 2 SF600 Alum

N/A

2.02/1.60

N/A

76/79

150/147

196/183

227/201

256/213

274/220

Chevy LT1 Ported TEA Stage 2 Alum

N/A

2.00/1.56

N/A

69/56

140/119

200/165

244/198

275/220

279/237

Chevy LT1 Ported TEA Stage 3 Alum

N/A

2.02/1.60

N/A

72/56

148/117

218/161

261/204

289/233

294/252

294/262

Chevy LT1 Ported ET Performance Alum

207/-

2.00/1.55
4.03

66/49

135/101

195/142

235/169

260/186

263/200

Chevy LT1 Ported No Rush Alum

N/A

2.00/1.55
-
No Pipe

N/A

71/60

142/109

193/148

237/179

262/193

271/198

275/202

Chevy LT1 Ported No Rush Alum

N/A

2.00/1.55
-
Pipe

N/A

71/62

142/114

193/158

237/191

262/206

271/216

275/219

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1 Ported 190 Advanced Induction SF600 Alum

190/-

2.00/1.55
4.03
No Pipe

N/A

70/56

143/113

197/149

244/177

269/189

275/195

276/200

Chevy LT1 Ported 200 Advanced Induction SF600 Alum

200/-

2.00/1.56
4.03
No Pipe

52-56

69/65

148/116

205/153

247/179

275/190

288/196

290/201

Chevy LT1 Kyle Ported Blackstone Alum

N/A

2.02/1.60
-
Pipe

N/A

74/64

147/118

203/167

249/197

269/214

284/225

287/232

Chevy LT1 Ported GTP Stage 2 Alum

N/A

2.00/1.56

N/A

70/51

122/119

186/145

222/176

254/204

266/217

Chevy LT1 Ported GTP Stage 2 Flowed Alum

188/-

2.00/1.56

135/106

184/140

228/164

258/182

267/192

263/195

Chevy LT1 Ported Meaux Racing SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

138/115

193/154

236/182

261/193

260/201

262/206

264/-

Chevy LT4 '96 Kendrick Auto

N/A

2.00/1.55

N/A

69/53

135/99

184/125

218/143

241/158

Chevy LT4 '96 Ported Kendrick Auto

N/A

2.00/1.55

N/A

82/58

149/104

193/144

232/173

261/189

Chevy LT4 Alum

195/-

2.00/1.55

156/121

208/149

243/177

265/190

257/196

Chevy LT4 Alum CHP

195/-

2.00/1.55
-
No Pipe

78/67

147/109

197/133

230/159

250/172

243/177

Chevy LT4 Alum CHP

195/-

2.00/1.55
-
Pipe

78/67

147/114

197/141

230/167

250/180

243/185

Chevy LT4 Ported ET Performance Alum

N/A

2.00/1.55
4.03

71/47

134/97

192/132

238/165

268/185

277/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT4 Ported No Rush Alum

N/A

2.00/1.55
-
No Pipe

N/A

72/62

142/108

195/151

239/177

270/191

281/198

288/201

290/204

Chevy LT4 Ported PBR Alum

N/A

2.05/1.60

N/A

167/126

214/166

258/193

290/210

310/218

317/226

Chevy LT4 Ported 21x Advanced Induction SF600 Alum

52-56

2.00/1.56
4.03
No Pipe

N/A

71/61

144/107

202/145

250/175

281/194

296/203

300/209

AFR LT1 180 Street Old SF600 Alum

180/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

129/108

195/156

240/178

255/190

260/194

AFR LT1 180 Street SF600 Alum

180/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

138/110

198/158

240/190

260/207

AFR LT1 180 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

144/102

206/152

245/190

260/204

268/211

AFR LT1 180 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

142/115

203/165

247/200

270/217

AFR LT1 190 Street SF600 Alum

190/64

2.02/1.60

56-74

129/108

195/156

240/178

260/190

262/194

AFR LT1/LT4 195 Street Old SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

132/108

198/156

240/178

260/190

262/194

AFR LT1/LT4 195 Street SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

137/110

196/156

243/190

274/207

AFR LT1/LT4 195 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

135/110

201/157

249/180

275/195

280/208

AFR LT1/LT4 195 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

140/115

202/165

248/200

280/217

300/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LT4 195 Street SF600 Alum

195/64

2.05/1.60
4.06
1 3/4" Pipe

55/65

146/119

201/166

247/197

275/213

AFR LT4 195 Comp SF600 Alum

195/64

2.08/1.60
4.06
1 3/4" Pipe

55/65

151/125

211/172

260/207

293/224

308/233

AFR LT1/LT4 203 Race SF600 Alum

203/80

2.08/1.60
4.125
1 7/8" Pipe

129/112

188/145

234/185

263/205

275/215

272/220

AFR LT1/LT4 210 Street SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

139/110

199/158

249/192

279/210

295/220

301/224

AFR LT1/LT4 210 Race Old SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

197/145

245/185

273/205

282/215

285/220

AFR LT1/LT4 210 Comp SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

147/120

206/166

257/214

290/225

308/235

312/240

AFR LT4 210 Race V2 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

145/110

199/158

255/192

292/210

309/220

AFR LT4 210 Comp V2 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

147/120

201/166

257/214

296/225

318/235

AFR LT4 Eliminator #10331 NPS Alum

N/A

2.05/1.60
4.0157
No Pipe

68/58

145/112

199/158

242/186

269/198

266/207

262/212

AFR LT4 Ported Race Prep Alum

213/65

2.08/1.60

N/A

75/52

135/104

194/148

242/181

278/201

315/219

AFR LT4 220 Race SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

132/112

190/145

248/185

280/205

286/215

292/220

AFR LT4 227 Race SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

135/112

192/145

250/185

288/205

292/215

295/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LT4 227 Street SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

148/114

210/162

259/204

292/220

305/229

AFR LT4 227 Comp SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

151/120

219/167

266/214

298/230

318/238

327/243

AFR LT4 227 Street 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

148/114

210/162

261/204

296/220

312/229

318/237

AFR LT4 227 Comp 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

152/120

212/167

265/214

300/230

319/238

327/243

AFR LT4 Ported Race Prep Alum

213/65

N/A

75/52

135/104

194/148

242/181

278/201

315/219

AFR LT4 Ported Meaux Racing I-50 E-50 Alum

N/A

2.10/1.60
4.00
No Pipe

N/A

136/99

197/166

254/196

292/216

315/221

319/226

327/226

AFR LT4 Ported Meaux Racing I-50 E-50 Alum

N/A

2.10/1.60
-
No Pipe

N/A

136/99

197/166

254/196

292/216

315/221

324/232

335/234

Dart 180 LT1/LT4 Alum

180/-

2.02/1.60
-
No Pipe

139/114

193/145

231/164

249/172

253/174

Dart 180 LT1 Advanced Induction SF600

189.8/75

2.02/1.60
4.03
No Pipe

N/A

61/48

124/94

176/124

222/153

251/171

264/184

256/192

Dart 180 LT1 Ported Advanced Induction SF600

201/-

2.02/1.60
4.03
No Pipe

69/57

141/104

197/141

241/168

277/187

290/200

290/205

Dart 200 LT1/LT4 Alum

200/-

2.02/1.60
-
No Pipe

129/114

185/145

229/164

261/172

263/174

Dart 215 LT1/LT4 Alum

215/-

2.05/1.60
-
No Pipe

127/114

178/145

216/164

249/172

268/174

271/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Performer LT1 61909 SF1020 Alum

170/60

1.94/1.55
-
No Pipe

61/52

117/100

174/140

220/167

242/184

232/192

Edelbrock Performer LT1 61909 Out of Box SF1020 GMHPMAlum

175.5./69

1.94/1.55
4.03

61/53

121/100

178/133

220/155

232/168

228/172

Edelbrock Performer RPM Xtreme LT4 61939 Semi-CNC SF1020 Alum

195/75

2.02/1.57
4.00

65/54

119/107

173/145

255/181

267/187

270/190

Patriot Alum

195/70

2.02/1.60
4.00

Pro Comp Alum

190/-

2.02/1.60

58/52

113/98

159/133

200/162

228/180

244/189

248/192

Trick Flow GenX LT1 21 Deg SF600

185/-

2.02/1.60
4.03

65/54

138/117

202/162

243/189

270/197

273/209

Trick Flow GenX LT1 21 Deg SF600 Alum

185/67

2.02/1.60
4.03
1 3/4" Pipe

65/48

132/111

195/151

236/182

258/198

260/206

Trick Flow LT1 SF600 Alum

195/72

2.02/1.60
4.03
1 3/4" Pipe

51/58

136/98

191/136

230/163

253/177

254/190

Trick Flow LT1 Ported Lloyd Elliot Alum

205/76

2.02/1.60

140/108

200/144

245/176

274/190

282/204

Trick Flow LT1 Ported Lloyd Elliot Alum

208/-

2.05/1.60

142/109

199/142

243/178

279/204

292/217

Trick Flow LT1 Ported 200 Advanced Induction SF600 Alum

200/78

2.08/1.60
4.03
No Pipe

N/A

70/61

144/107

198/145

246/175

274/194

278/203

279/209

Trick Flow LT1 Ported 215 Advanced Induction SF600 Alum

215/78

2.08/1.60
4.03
No Pipe

N/A

72/65

146/111

206/149

253/177

285/196

300/205

304/210

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow LT1 Ported TEA Alum

205/66

2.02/1.60
4.03
Pipe 1 3/4

68/54

143/117

217/177

263/219

290/243

294/257

Trick Flow LT1 Ported TEA Alum

220/66

2.08/1.60
4.03
Pipe 2"

N/A

69/52

144/119

207/182

255/224

291/247

310/257

316/262

4.3l v6 - Syclone / Typhoon

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Large Valve Rockville Speed

N/A

2.02/1.60

N/A

65/51

133/102

163/131

174/139

178/141

Chevy Ported Large Valve Rockville Speed

N/A

2.02/1.60

N/A

66/52

135/112

175/152

197/183

209/184

214/-

Chevy 90 Deg LB4

N/A

1.94/1.50

N/A

165/119

Chevy 90 Deg L35 Sandman

N/A

1.94/1.50

N/A

60/-

100/-

143/-

172/-

189/-

194/-

201/-

Chevy 90 Deg L35 Dennis

N/A

1.94/1.50

N/A

60/-

100/-

143/-

172/-

189/-

199/-

Chevy 90 Deg L35 Ported Dennis

N/A

1.94/1.60

N/A

60/62

123/121

170/172

207/188

230/195

247/199

Chevy 90 Deg L35 Shan Mild Ported

N/A

2.02/1.60

N/A

64/54

122/102

164/139

197/166

217/181

218/185

219/188

Chevy 90 Deg Vortec

N/A

1.94/1.50
4.00

N/A

63/49

131/106

187/139

218/155

216/163

217/165

Chevy 90 Deg LF6 Vortec Ported

N/A

65/55

131/125

182/166

228/184

259/191

Chevy 359 / 523 18 Deg Hutter Alum

244/-

2.15/1.625

147/110

228/162

282/215

321/235

338/243

347/250

Brodix 90 Deg V6 -8 23 Deg Alum

194/-

2.08/1.60

134/110

191/139

230/155

240/161

Brodix 90 Deg V6 -10 23 Deg Alum

210/-

2.08/1.60

145/110

195/139

240/155

253/161

262/166

262/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix 90 Deg V6 18 Deg Ported Kelford Cams Alum

N/A

2.08/1.60

N/A

66/63

130/124

193/160

245/184

294/198

323/204

339/207

Ecotec

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

4 cyl Ported Alum

N/A

35.2mm/ 30.1mm

N/A

250/-

270/175

4 cyl Ported Alum

N/A

35.2mm/ 31.1mm

N/A

250/-

270/207

2.0L LSJ M2 Race Systems Alum

N/A

35.2mm/ 30.1mm
3.575

N/A

155/127

192/139

224/144

243/146

253/148

258/149

261/149

2.0L LSJ CNC M2 Race Systems Alum

N/A

36.1mm/ 31.1mm
3.575

86/86

126/126

166/151

201/173

235/187

263/194

278/199

292/203

298/206

303/208

2.2 Patriot CNC Stage II Alum

173/75

1.42/1.225

81/7

121/109

160/138

190/160

217/174

238/181

264/187

266/189

Ported Shaver SF1020 Alum

181/78

35.2mm/ 30.1mm

N/A

113/116

148/151

181/176

214/190

242/199

258/204

268/206

-/208

Chevy_Big_Block

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 156 Peanut Iron CHP

195/-

2.06/1.72
-
No Pipe

115

54/35

123/84

184/117

222/141

226/156

226/160

227/162

Chevy 236 Peanut Iron CHP

208/112

2.06/1.72
-
No Pipe

120

56/44

125/87

183/111

215/130

233/144

235/150

235/155

Chevy 236 Peanut Iron CCM

208/112

2.06/1.72
-
Pipe

120

56/44

125/90

183/117

215/139

233/158

235/166

235/172

Chevy 360 Small Oval Ported BH Performance Iron

N/A

N/A
-
No Pipe

N/A

75/68

160/111

202/143

230/165

247/178

256/192

255/199

Chevy Vortec L29 '97-99 Iron

230/-

2.070/1.72

63/49

121/91

165/120

198/133

226/140

242/142

Chevy Oval Port Iron

256/114

2.06/1.72

N/A

272/189

Chevy 049 Oval Port Iron

253/115

2.06/1.72

N/A

268-260/177

Chevy 049 Oval Port SF600 CHP Iron

253/116

2.06/1.72
-
Pipe

122

59/52

124/98

188/128

232/152

250/177

264/187

264/192

265/192

Chevy 049 Oval Ported BH Performance Iron

N/A

2.19/1.88
-
No Pipe

N/A

68-77/62

146-158/112

215-221/149

265-260/167

301-280/181

303-293/194

296-294/201

Chevy 049 Oval Ported BH Performance Iron

N/A

2.19/1.88
-
Pipe

N/A

68-77/67

146-158/147

215-221/193

265-260/227

301-280/245

303-293/249

296-294/251

Chevy 049 Oval Gamrace Iron

N/A

2.07/1.72
4.30
No Pipe

N/A

175/128

218/140

236/149

251/153

255/154

Chevy 049 Oval Ported Stage 1 Gamrace Iron

260/-

2.19/1.88
4.30
No Pipe

N/A

205/142

265/169

302/192

302/209

297/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 049 Oval Ported Dr Js Performance Iron

N/A

2.25/1.94
4.50
2" Pipe

N/A

76/68

152/134

228/162

271/214

315/242

341/261

348/289

Chevy 049 Oval Ported sheetmetal Iron

N/A

2.19/1.88
4.25
No Pipe

N/A

142/110

204/138

249/166

288/190

310/200

Chevy 063 Oval Weingartner Racing Iron

N/A

2.06/1.74
4.31
No Pipe

N/A

65-59/45

114-106/86

178-173/115

234-215/137

248-229/153

260-247/166

273-255/175

270-256/180

Chevy 063 '69 Oval Chris Straub Iron

N/A

2.07/1.72
4.50

N/A

117/97

180/123

228/145

248/164

265/176

270/183

Chevy 063 '69 Oval Chris Straub Iron

N/A

2.19/1.88
4.50

N/A

138-132/96

202-198/123

243-239/153

272-271/175

295-291/196

293-290/215

Chevy 063 '69 Oval Chris Straub Ported Foxwell Motorsports Iron

N/A

2.19/1.80
4.50
2 1/4" Pipe

N/A

156-153/116

216-215/150

265-260/174

307-290/200

333-305/220

327-310/242

Chevy 3931063 Oval Dr Js Performance Iron

N/A

2.06/1.74
-
Pipe

N/A

65/55

117/97

180/123

228/145

248/164

265/176

270/183

Chevy 3931063 Oval Ported Dr Js Performance Iron

N/A

2.19/1.88
-
Pipe

N/A

75/74

150/134

219/162

266/206

304/232

321/249

327/260

Chevy 088 Ported Chad Speier SF600 Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

156-157/132

232-229/163

286-278/188

328-314/207

363-335/220

380-353/231

382-365/240

385-371/248

387-377/251

Chevy 290 Oval Port Iron CHP

253/112

2.06/1.72
-
No Pipe

105

60/47

122/88

172/113

214/133

244/152

257/161

260/168

263/171

Chevy 290 Oval Port Iron CHP

253/112

2.06/1.72
-
Pipe

105

60/47

122/90

172/118

214/138

244/160

257/174

260/184

263/188

Chevy 290 Oval Port Ported Ron Miller SF120 Iron

N/A

2.19/1.88
4.50
No Pipe

98.2

151-152/130

215-162/157

263-259/191

288-275/215

312-293/240

326-291/243

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 390 Oval NPS Stock Iron

N/A

2.065/1.72
4.25
No Pipe

N/A

69/46

116/89

180/114

216/136

236/155

248/171

260/180

Chevy 390 Oval Pace Performance Alum

290/110

2.25/1.88

110

71/58

138/119

193/145

233/168

272/189

299/202

318/210

327/230

Chevy 390 Oval SF600 Alum

290/110

2.25/1.88
4.50
1 7/8" Pipe

110

74/71

143/126

207/158

250/178

284/200

309/218

322/232

Chevy 390 Oval Ported SF600 Alum

N/A

2.25/1.88
4.50
1 7/8" Pipe

112

85/73

161/141

230/175

283/208

332/234

354/257

361/274

363/287

Chevy 392 / 399 Oval Alum

290/110

2.19/1.88

110

67/64

149/128

226/150

271/172

293/195

316/213

320/227

Chevy 702 Oval Port Iron CHP

253/-

2.06/1.72
-
Pipe

101

57/46

121/89

179/115

214/135

237/152

254/173

260/183

260/188

Chevy 702 Oval Weingartner Ported Pocket Iron

N/A

2.19/1.88
4.50

N/A

82/64

146/104

232/127

274/154

295/180

311/204

306/215

292/229

Chevy 702 Oval Ported I-33 E-33 Back Cut Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

180/121

247/146

283/173

307/197

314/211

314/223

Chevy 772 Oval Short Runner Weingartner Racing

N/A

2.19/1.88
4.50
No Pipe

N/A

63/56

157/106

215/139

259/165

251/180

268/184

274/187

275/188

Chevy 781 Oval Bill Jones Iron

N/A

2.06/1.72
-
No Pipe

N/A

69/57

142/103

190/127

217/158

238/179

270/197

Chevy 781 Oval Mild Porting Bill Jones Iron

N/A

2.06/1.72
-
No Pipe

N/A

69/62

142/115

203/152

243/187

265/207

279/216

Chevy 781 Oval Bowl Blend Iron

258/116

2.19/1.88
4.31
No Pipe

N/A

69/69

142/110

210/140

256/166

285/180

276/188

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 781 Oval Bowl Blend Wolfplace FlowData Iron

N/A

2.19/1.88
4.53
No Pipe

N/A

69/56

158/102

217/135

254/161

263/186

274/209

272/219

Chevy 781 Oval Ported Iron

N/A

2.19/1.84

N/A

324/288

Chevy 781 Oval Dave Vandenburg Mild Port Bowl Blend Iron

N/A

2.25/1.88

N/A

73/61

140/108

211/139

273/165

305/186

315/202

301/216

Chevy 781 Oval Short Runner Weingartner Racing Iron

N/A

2.19/1.88
4.50
No Pipe

N/A

68/57

153/111

215/137

257/151

254/158

264/159

263/163

267/163

Chevy 781 Ported Dr Js Performance I-50 E-45 Iron

N/A

2.30/1.90
-
2" Pipe

N/A

66-63/68

148-143/132

228-225/161

294-291/212

335-333/240

354-348/259

363-352/268

372-358/274

375-364/277

381-370/279

Chevy 820 Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

145/132

207/166

256/193

295/201

308/214

301/221

Chevy 820 Bowl Ported Weingartner Racing Brez

N/A

2.25/1.88
4.31
No Pipe

N/A

156/-

220/-

273/-

295/-

315/-

337/-

350/-

Chevy 3993820 Oval

253/114

113

71/52

145/105

227/144

260/176

279/190

Chevy 074 Ported Mike Stark Seanz 680 Alum

340/-

2.30/1.88
4.60

N/A

81/75

166/119

248/157

312/191

354/210

378/233

392/255

400/272

400/280

Chevy 188 Iron CHP

317/125

2.19/1.88
4.25
Pipe

118

68/45

129/90

188/131

233/170

259/188

291/195

313/200

-/202

Chevy 188 Iron CHP

317/125

2.19/1.88
4.25
No Pipe

118

68/45

129/88

188/128

233/154

259/172

291/177

313/181

Chevy 188 Young Performance Marine Iron

N/A

2.19/1.88
4.50
No Pipe

118

149/117

197/150

233/174

258/184

280/187

287/187

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 188 Young Performance Marine Ported Iron

N/A

2.19/1.88
4.50
No Pipe

118

150/117

204/151

246/180

278/192

303/197

311/197

Chevy 188 Jim V right hand port Iron

N/A

2.19/1.88
-
No Pipe

N/A

148/101

213/135

250/162

287/176

317/182

328/186

Chevy 291 Rect. 3-angle VJ Meaux Racing SF600 Iron

N/A

2.19/1.88

N/A

136-134/114

200/153

248-239/171

281-261/184

302-278/192

316-287/196

Chevy 291 Rect. M Chips Iron

N/A

2.19/1.88

N/A

65/55

147/110

211/143

245/172

266/195

284/209

299/220

Chevy 291 Rect. Weingartner Racing Brez Iron

N/A

2.19/1.88
4.31
No Pipe

N/A

141/112

207/139

251/163

288/180

289/194

291/197

Chevy 291 Rect. Weingartner Racing Iron

N/A

2.19/1.72
4.50
No Pipe

N/A

67/54

137/104

205/132

248/156

287/174

319/182

323/187

Chevy 401 CHP

322/120

2.25/1.88
4.25
Pipe

118

70/53

143/116

200/142

236/179

275/204

310/227

330/244

340/254

Chevy 840 Rect. Weingartner Racing Brez

N/A

2.19/1.72
4.31
No Pipe

N/A

65/60

137/107

195/137

244/159

283/176

307/185

312/192

Chevy 990 Iron CHP

318/125

2.19/1.88
4.25
Pipe

118

69/53

125/103

183/140

233/176

264/198

292/204

-/207

Chevy 990 Meaux Racing Iron

N/A

2.19/1.88
4.28
Pipe

N/A

131-129/106

202-201/138

234-228/162

272-250/181

303-275/194

322-289/197

Chevy 990 Bowls Blended Josh Iron

N/A

2.25/1.88
-
No Pipe

N/A

72/59

143/113

215/139

261/165

290/186

306/204

323/213

333/216

Chevy 990 Rect. VJ Bowl Cutter I-33 E-33 Back Cut Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

183/122

245/152

290/176

317/198

329/208

338/213

341/213

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 920 Rect. Iron

N/A

2.19/1.88

118

Chevy Rect. Port

320-326/ 120

2.19/1.88

118

331/201

Chevy 410 Rect. Alum

300-315/ 110

2.19/1.88

118

Chevy 400 Rect. Alum

300-315/ 110

2.25/1.88

118

Chevy ZL-1 D-port

320/120

2.19/1.88

N/A

331/213

Chevy Alum D-port

320/120

2.19/1.88

N/A

284/206

310/226

328/238

Chevy 14011076 Ported BH Performance Alum

N/A

2.25/1.92
-
No Pipe

N/A

78/75

155/119

227/151

274/182

304/206

335/228

361/236

Chevy Bowtie Weingartner Racing Ported Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

170/131

241/163

275/186

307/208

336/224

358/235

373/245

GM PS 2000 - Darin Morgan SF600 Alum

N/A

2.48/1.85
-
No Pipe

N/A

138/125

218/175

291/212

372/251

441/285

495/311

531/325

547/333

548/336

GM PS 2002 - Darin Morgan SF600 Alum

N/A

2.50/1.82
-
No Pipe

N/A

155/114

247/177

343/222

423/263

494/301

532/319

542/334

551/345

561/349

GM / DRCE PS Alum

N/A

2.515/-

N/A

144/-

251/-

336/-

410/-

475/-

530/-

545/-

575/-

580/-

GM / DRCE 1 PS 2004 - Darin Morgan SF600 Alum

N/A

2.50/1.80
-
No Pipe

N/A

143/110

250/167

340/210

422/252

487/299

531/323

555/336

571/342

585/348

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

GM / DRCE 2 Pro Stock Ported MBE Alum

487/-

2.54/1.80
4.52
No Pipe

N/A

152/117

244/162

329/211

411/263

474/306

512/327

538/340

550/346

562/347

565/349

GM / DRCE 3 - Ported Alum

N/A

2.55/1.83

N/A

149/119

246/176

350/223

429/267

500/307

544/331

569/344

584/354

600/360

GM / DRCE 3 - Darin Morgan SF600 Alum

N/A

2.55/1.83
-
No Pipe

N/A

147/95

252/168

343/216

429/260

500/295

550/316

573/333

583/343

595/350

GM / DRCE 3 - Darin Morgan SF600 Alum

N/A

2.55/-

N/A

154/-

258/-

345/-

425/-

494/-

553/-

587/-

598/-

602/-

605/-

GM / Pro Mod 5.2 BS - Darin Morgan SF600 Alum

N/A

2.60/1.95
-
No Pipe

N/A

182/160

267/222

351/286

419/338

492/358

543/367

585/371

607/371

606/374

AFR 265 Oval SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

119

165/135

244/169

297/219

324/249

332/272

AFR 265 Oval Partially Ported SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

112

154/127

218/164

278/200

323/230

347/255

AFR 265 Oval CNC Chamber Partially Ported SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

112

172/157

245/195

295/227

326/253

342/265

AFR 265 CNC Chamber Wolfplace FlowData Alum

265/-

2.19/1.88
4.53
No Pipe

N/A

76/64

168/144

252/196

307/232

339/248

351/254

AFR 290 Oval SF600 Alum

290/115

2.25/1.88
4.31
2 Pipe

121

170/157

241/190

294/232

332/260

361/278

374/292

AFR 290 Oval SF600 Alum

290/115

2.25/1.88
4.31
1 7/8" Pipe

112

170/138

240/199

294/239

332/268

361/283

374/298

AFR 290 Oval CNC Weingartner Racing Brez

N/A

2.25/1.88
4.31
No Pipe

N/A

79/67

167/141

242/212

298/242

328/267

356/274

370/279

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AFR 290 Oval Alum

290/115

2.25/1.88
4.31
1 7/8" Pipe

113

170/135

240/190

294/234

332/265

361/280

374/295

AFR 300 Oval Alum

300/-

2.30/1.88
4.31
1 7/8" Pipe

113

165/135

240/190

296/234

340/265

378/280

388/295

AFR 305 SF600 Alum

305/-

2.19/1.88
4.60
2 1/8" Pipe

119

154/131

223/176

287/219

335/251

363/276

AFR 305 CNC Chambers SF600 Alum

305/-

2.19/1.88
4.60
2 1/8" Pipe

121

163/135

241/192

300/237

344/268

367/284

368/298

AFR 305 CNC Chambers Partially Ported SF600 Alum

305/-

2.19/1.88
4.31
2 1/8" Pipe

121

168/142

242/187

303/225

339/252

360/271

AFR 305 VJ Bowl Work Foxwell Motorsports Alum

N/A

2.25/1.88
4.50
2 1/4" Pipe

N/A

169-172/150

246-247/196

305-300/239

348-334/266

373-359/281

380-375/290

384-387/302

386-394/312

AFR 315 CNC SF600 Alum

315/135

2.25/1.88
4.60
2 1/8" Pipe

121

169/146

249/184

312/238

353/271

380/296

386/310

387/315

AFR 315 Alum CHP

315/-

2.25/1.88
4.25
Pipe

N/A

76/62

162/133

232/199

282/256

321/284

348/290

368/293

370/300

AFR 315 CNC Wolfplace FlowData Alum

315/-

2.25/1.88
4.31
No Pipe

N/A

78/69

162/142

239/198

290/240

334/267

358/280

374/283

377/286

AFR 315 CNC Wolfplace FlowData Alum

315/-

2.25/1.88
4.53
No Pipe

N/A

78/69

164/142

247/198

309/240

350/267

375/280

383/283

381/286

AFR 325 SF600 Alum

325/132

2.30/1.88
4.60
2 1/8" Pipe

119

142/131

213/176

280/219

331/251

370/276

384/285

AFR 325 Weingartner Racing Brez

N/A

2.30/1.88
4.31
No Pipe

N/A

81/63

166/137

236/182

293/226

340/258

358/274

377/280

383/282

386/282

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AFR 335 CNC SF600 Alum

335/135

2.30/1.88
4.60
2 1/8" Pipe

121

164/144

240/197

304/257

352/285

385/311

404/319

410/325

AFR 335 CNC SF600 Out of Box Alum

335/-

2.30/1.88
4.60
No Pipe

N/A

170/133

249/178

313/230

362/259

396/268

405/273

AFR 335 CNC SF600 Alum

335/-

2.30/1.88
-
2 1/8" Pipe

121

164/142

240/193

304/244

352/278

385/310

404/321

410/327

AFR 335 Ported Foxwell Motorsports I-45 E-45 Alum

344/-

2.35/1.88

N/A

155-154/128

239-238/181

304-274/227

353-345/274

394-377/304

422-398/310

430-411/319

437-424/321

442-430/325

AFR 345 SF600 Alum

345/-

2.30/1.88
4.60
2 1/8" Pipe

119

141/135

212/169

279/219

333/249

372/272

401/285

405/290

AFR 345 NPS Alum

N/A

2.30/1.88
4.25
No Pipe

N/A

75/57

137/116

209-208/176

271-277/221

319-327/243

345-364/253

357-388/261

368-398/264

AFR 357 CNC SF600 Alum

357/135

2.30/1.88
4.60
2 1/8" Pipe

121

167/144

242/197

307/257

354/285

393/311

415/319

425/325

AFR 377 CNC SF600 Alum

377/135

2.30/1.88
4.60
2 1/8" Pipe

121

176/148

260/205

328/263

382/302

415/316

427/330

434/340

437/345

AFR 385 CNC Alum

385/135

2.35/1.88
4.60
2.125" Pipe

121

176/149

256/205

327/267

386/302

421/322

444/334

452/344

456/350

AFR 385 Out of Box Alum

N/A

2.35/1.88
4.625
2.25" Pipe

N/A

161/139

230/210

299/273

357/299

400/309

427/315

438/319

AFR 385 3v Performance Bad Port Out of Box Alum

385/-

2.35/-

N/A

78/-

167/-

242/-

303/-

349/-

381/-

409/-

423/-

433/-

440/-

AFR 385 Out of Box Weingartner Racing Alum

N/A

2.345/1.88
4.625
2.125" Pipe

N/A

71-72/60

155-156/139

228/192

296-288/269

357-347/299

400-382/315

432-414/327

426-429/337

429-433/343

434-432/345

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AJPE 316 Billet Alum

316/119

2.19/1.85
4.25
2.375" Pipe

118

151/122

233/174

290/244

325/283

348/302

360/310

367/315

375/-

AJPE 368 02 Billet Alum

368/130

2.35/1.88
4.50
2.375" Pipe

118

159/118

242/175

303/249

337/291

387/305

390/315

407/322

422/329

AJPE 368 03 Billet Alum

368/130

2.35/1.88
4.50
2.375" Pipe

111

147/131

222/181

287/252

328/295

364/313

392/322

406/327

421/333

AJPE 481-X Stage I SF1020 Alum

517/199

2.40/1.90
4.50
2.5" Pipe

147/125

228/177

306/227

369/269

422/308

455/345

482/364

495/375

AJPE 481-X Stage III SF1020 Alum

551/198

2.45/1.90
4.50
2.5" Pipe

147/131

229/178

308/219

374/259

427/292

458/315

477/334

497/347

AJPE 5.3 Inch BS Alum

591/240

2.70/2.05
-
2.4" Pipe

102

170/131

255/183

363/232

449/289

525/336

598/375

650/404

661/426

665/437

670/448

Avenger 345 CNC 24 Deg Alum

345/110

2.30/1.90

110/119

80/75

151/133

245/170

304/201

342/228

364/258

378/277

384/288

Avenger 360 CNC 24 Deg Alum

360/110

2.30/1.90

110/119

79/75

149/138

218/178

278/200

337/226

367/262

381/282

392/293

BMF 310 CNC Port Alum

310/150

2.30/1.88

119

259/174

325/212

374/250

386/277

393/292

394/304

400/315

BMF 310 Out of Box Weingartner Racing Alum

310/-

2.30/1.88
4.50
No Pipe

N/A

77/68

153/130

235/176

281/214

323/248

358/268

357/283

357/299

BMF 310 Out of Box Weingartner Racing Brez Alum

310/-

2.30/1.88
4.31
No Pipe

N/A

78/63

151/133

219/171

273/216

317/258

352/274

372/289

377/300

BMF/CFE 10sec CNC Alum

310/-

2.25/1.88
4.31
No Pipe

N/A

67/61

130/125

204/160

282/208

324/243

356/265

378/277

381/288

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

BMF/CFE 10sec CNC Alum

310/-

2.25/1.88
4.31
2" Pipe

N/A

67/61

130/131

204/179

282/220

324/256

356/280

378/285

381/307

BMF 330 CNC Port Alum

330/150

2.30/1.88

119

264/174

331/212

397/250

398/277

398/292

400/304

400/315

BMF 350 CNC Port Alum

350/150

2.30/1.88

119

259/174

326/212

372/250

407/277

414/292

416/304

418/315

BMF 385 CNC Port Alum

385/150

2.30/1.88

119

267/174

336/212

381/250

405/277

420/292

432/304

442/315

BMF2 405 CNC Port Alum

405/150

2.35/1.88

119

258/174

325/212

375/250

411/277

429/292

443/304

456/315

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.35/-

N/A

230/-

312/-

376/-

418/-

451/-

466/-

475/-

480/-

484/-

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.375/-

N/A

232/-

314/-

383/-

437/-

459/-

480/-

492/-

495/-

496/-

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.40/-

N/A

250/-

320/-

390/-

446/-

473/-

484/-

494/-

504/-

511/-

Brodix JJ 270 Alum

270/-

2.25/1.88

119

159/116

223/145

270/172

314/196

334/217

340/236

Brodix JJ 294 Alum

294/-

2.25/1.88

119

160/116

226/145

276/172

314/196

337/217

342/236

Brodix-HVH Oval Alum

N/A

2.25/1.88

N/A

170/126

250/177

307/212

347/246

373/267

384/279

388/288

Brodix BB-1 OEFI Alum

258/-

2.25/1.88

119

162/106

219/137

252/166

265/190

272/211

273/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix RR BB-O CCM Alum

270/-

2.25/1.88
-
Pipe

119

74/64

163/113

218/145

267/171

306/194

328/216

341/234

348/244

Brodix RR BB-O 26 Deg Alum

270/-

2.25/1.88

119

154/106

221/137

274/164

316/188

335/211

342/229

Brodix RR BB-O CNC Chamber Wolfplace FlowData Alum

270/-

2.25/1.88
4.53
No Pipe

N/A

77/65

152/118

224/147

283/178

318/205

344/230

347/248

Brodix RR BB-R 26 Deg Alum

294/-

2.25/1.88

119

160/106

227/137

279/164

317/188

328/211

340/229

Brodix RR BB-R CNC Chamber Hekimian Racing Alum

N/A

2.25/1.88

119

161/112

228/146

281/178

321/203

339/222

346/235

Brodix RR BB-R Ported Mike Stark I-45 E-45 Saenz 680 Alum

310/-

2.25/1.88
4.31
No Pipe

N/A

75/66

156/123

230/154

297/184

341/209

370/232

384/250

385/265

387/275

Brodix RR BB-2 Plus Alum

312/-

2.25/1.88

119

150/116

215/145

265/172

311/196

334/217

344/236

Brodix RR BB-2 Plus STS Alum

320/-

2.25/1.88

119

162/126

244/164

285/201

328/228

359/251

369/267

373/284

Brodix BB-1 26 Deg Alum

280/-

2.25/1.88

119

150/106

209/137

259/166

290/190

300/211

303/225

Brodix BB-1 26 Deg 305 CNC M2 Race Systems Alum

305/-

2.25/1.88

119

154/135

236/176

293/211

339/242

362/265

371/281

Brodix BB-1 26 Deg 308 CNC M2 Race Systems Alum

308/-

2.30/1.88
4.50

118

253/188

311/215

349/250

367/282

376/301

380/307

Brodix BB-2 26 Deg Alum

305/-

2.25/1.88

119

157/107

212/137

263/166

294/190

312/214

320/226

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-2 Plus 26 Deg Alum

312/-

2.25/1.88

119

150/122

215/148

265/187

311/216

334/229

344/238

Brodix BB-2 Plus STS 26 Deg Alum

320/-

2.25/1.88

119

162/132

244/169

285/204

328/234

359/261

369/274

373/284

Brodix BB-2X 26 Deg Alum

340/-

2.30/1.88

119

154/106

211/137

260/166

292/190

312/211

323/225

Brodix BB-2X 26 Deg Alum

340/-

2.30/1.88

119

153/122

221/138

276/171

322/198

357/216

363/229

Brodix BB-2X 26 Deg 3V Performance Ported Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

148-146/126

213-209/161

265-258/204

310-301/244

345-319/275

368-337/291

376-353/301

Brodix BB-2X 26 Deg CNC CC Alum

341/-

2.30/1.88

N/A

153/132

225/176

285/211

333/235

368/254

365/264

365/270

Brodix BB-2X 26 Deg Sonny's Alum

341/124

2.30/1.90

119

367/265

Brodix BB-2Xtra 26 Deg Alum

340/-

2.30/1.88

119

160/132

220/159

277/193

325/219

360/234

379/250

Brodix BB-2Xtra 26 Deg CNC M2 Race Systems Alum

355/-

2.30/1.88
4.50

119

183/134

235/177

294/216

340/247

376/268

395/280

408/288

Brodix BB-3 26 Deg EVM 30 Alum

370/-

2.35/1.88

119

145/93

206/129

265/161

316/187

351/213

371/229

Brodix BB-3Xtra 24 Deg Alum

363/-

2.30/1.88

119

154/142

230/187

300/217

356/243

387/265

389/275

389/280

391/281

Brodix BB-3Xtra BP 24 Deg CNC Alum

366/-

2.30/1.88

119

154/130

237/177

307/239

362/278

394/284

416/290

423/295

423/297

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-3Xtra O 24 Deg 335 CNC I-45 E-45 Alum

335/-

2.35/1.88

119

162/142

233/187

298/217

355/243

397/265

417/275

420/280

411/281

Brodix BB-3Xtra O 24 Deg 380 CNC I-45 E-45 Alum

380/-

2.35/1.88

119

159/134

237/182

309/219

360/254

401/254

430/301

443/306

442/311

Brodix BB-3Xtra O 24 Deg 332 CNC I-50 E-50 Alum

332/-

2.30/1.88

119

153/130

231/177

300/239

354/278

396/284

424/290

425/295

428/297

Brodix BB-3Xtra O 24 Deg 351 CNC D & F Alum

351/-

2.30/1.88

119

163/130

240/177

312/239

360/278

393/284

412/290

418/295

425/297

Brodix BB-3Xtra O 24 Deg 351 CNC I-50 E-50 Alum

351/-

2.35/1.88

119

154/130

229/177

298/239

353/278

400/284

433/290

441/295

443/297

Brodix BB-3Xtra O 24 Deg 365 CNC I-50 E-50 Alum

365/-

2.35/1.88

119

151/130

224/177

294/239

351/278

400/284

433/290

451/295

460/297

Brodix BB-3Xtra O 24 Deg 3v Performance Bad Port Alum

355/-

2.35/-

N/A

87/-

168/-

242/-

304/-

348/-

375/-

397/-

418/-

428/-

433/-

Brodix BB-377 HH 24 Deg Oval CNC I-52 E-55 Alum

377/-

2.375/1.85

N/A

145/122

221/190

296/231

353/266

397/287

434/304

457/306

469/308

Brodix BP HH BB 383 24 Deg Oval CNC I-52 E-55 Alum

383/-

2.375/1.85

119

145/122

221/190

296/231

353/266

397/287

434/304

457/306

469/308

Brodix BP HH BB 383 MC 24 Deg Oval CNC I-55 E-55 25/50 Alum

383/-

2.40/1.85

119

143/122

218/169

291/211

352/247

402/270

449/294

470/304

481/311

Brodix BP HH BB 395 MC 24 Deg Oval CNC I-55 E-55 25/50 Alum

395/-

2.40/1.85

119

141/126

217/166

291/208

352/244

405/266

445/291

469/301

488/306

Brodix HH 383 Oot of Box Weingartner Racing Alum

N/A

2.40/1.85
4.625
No Pipe

119

70-73/57

148-144/112

208-214/160

273-283/199

333-347/237

387-395/266

428-429/280

458-444/289

457/293

457-468/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-4 24 Deg Alum

340/-

2.35/1.88

134

151/132

211/161

261/188

303/216

334/236

361/252

Brodix BB-4 24 Deg Raised Port MBE SF600 Alum

385/-

2.375/1.80
4.52
No Pipe

134

148/117

224-221/167

290-289/211

339-340/247

394/270

441-428/286

469-449/295

465-462/298

464-470/300

Brodix BB-4Xtra 24 Deg M2 Race Systems CNC Alum

390/-

2.35/1.88
4.50

119

148/122

214/161

271/192

332/221

380/253

414/269

431/279

Brodix BB-4Xtra 24 Deg M2 Race Systems CNC Alum

390/-

2.35/1.90
4.60

119

141/122

206/156

275/190

327/222

382/245

425/263

447/276

Brodix BB-5 26 Deg Alum

387/-

2.35/1.90

108

108/77

150/103

203/134

258/167

309/200

354/222

384/238

Brodix BB-5 Sonny's Alum

390/-

2.35/1.90

108

111/74

163/116

219/153

276/187

321/213

360/233

Brodix BB-5 Sonny's Sportsman Alum

395/123

2.35/1.90

123

405/275

Brodix BB-5 Sonny's Max Flow Alum

406/149

2.35/1.90

113.5

421/311

439/-

Brodix Big Duke Weingartner Racing

N/A

2.40/1.90
4.50
No Pipe

N/A

81/73

178/137

253/179

296/210

345/239

380/272

404/302

424/314

433/324

438/331

Brodix Big Duke - PB 1800 18 Deg Alum

415/-

2.40/1.90
4.60

141/126

200/166

263/200

322/225

370/242

407/253

418/257

Brodix Big Duke - PB 1800 18 Deg Ported Alum

415/-

2.40/1.90
4.60

165/126

242/180

318/236

388/296

430/313

463/319

483/338

Brodix Big Duke - PB 1801 18 Deg Ported Alum

375/-

2.40/1.90
4.50

162/129

245/180

312/222

367/269

411/301

442/308

463/315

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix Big Duke - PB 1802 18 Deg Alum

456/-

2.40/1.90
4.60

146/112

216/159

289/199

359/233

417/266

454/287

478/300

495/308

Brodix Big Duke - PB 1802 18 Deg CNC Chamber Alum

456/-

2.40/1.90

N/A

156/135

230/180

305/219

361/252

414/294

453/306

476/313

Brodix Big Duke - PB 1803 18 Deg CNC Chamber Alum

413/-

2.45/1.86

137/110

217/162

296/204

362/238

418/265

464/288

484/320

490/328

Brodix Big Duke - BP PB 1803 18 Deg CNC Alum

410/-

2.45/1.86

91/95

145/126

224/172

300/211

369/245

425/270

475/318

500/338

515/351

Brodix Big Duke - KC PB 1803 18 Deg CNC M2 Race Systems Alum

410/-

2.45/1.86

138/116

218/164

300/204

364/235

420/266

460/294

489/323

505/343

Brodix Big Duke 12 Deg CNC Slick Rick Racing Heads Alum

N/A

2.52/1.86
-
No Pipe

N/A

233/168

322/225

399/293

468/327

512/340

535/348

550/352

556/355

563/357

Brodix - KC PB 1600 16 Deg Ported Alum

416/-

2.45/1.86

147/113

232/177

314/224

383/274

439/310

482/333

506/340

515/345

Brodix - KC PB 5000 5.0 Inch BS 15 Deg CNC Alum

506/-

2.52/1.86

154/116

237/172

323/219

398/263

437/297

506/330

539/351

557/364

Brodix / Sonny's PB 2005 14.5 Deg I-55 E-55 Alum

490/-

2.52/1.86

129/111

199/156

287/196

334/231

431/258

482/274

517/287

540/293

Brodix / Sonny's PB 2005 14.5 Deg Minor Port I-55 E-55 Alum

490/-

2.52/1.86

153/132

241/187

323/227

395/258

452/289

499/326

517/338

540/343

Brodix / Sonny's STS PB 2005 14.5 Deg E-Tulip I-55 E-55 Alum

N/A

2.52/1.86

N/A

144/119

222/182

309/229

384/265

451/301

505/333

548/357

563/362

Brodix EB 650 Alum

N/A

2.475/1.92

N/A

105/88

181/130

255/173

330/214

395/268

450/307

482/335

498/344

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix PB 1200 12 Deg CNC Alum

483/-

2.52/1.86

147/126

227/180

312/224

388/264

460/305

509/319

545/333

571/338

Brodix PB 1200 12 Deg CNC Alum

483/-

2.52/1.86

68/72

151/126

235/180

323/224

395/264

459/305

513/319

549/333

563/338

Brodix PB 1201 12 Deg CNC Alum

480/-

2.45/1.86

156/122

249/176

332/231

398/276

460/300

499/303

522/339

530/340

Brodix PB 1201 12 Deg CNC Alum

480/-

2.45/1.86

68/72

151/122

243/176

330/231

400/276

454/300

495/303

521/339

533/340

Brodix KC PB 1202 12 Deg CNC Alum

497/-

2.48/1.86

66/70

154/122

247/174

332/229

401/274

468/303

509/328

535/338

553/339

Brodix KC PB 1204 12 Deg CNC Alum

510/-

2.52/1.86

71/75

157/116

216/169

298/221

369/261

434/321

489/344

542/358

578/370

Brodix PB 5000 16 Deg 5.0 BS CNC Alum

515/-

2.52/1.86

154/116

237/172

323/219

398/263

461/297

506/330

539/351

557/364

Brodix PB 5001 16 Deg 5.0 BS CNC Alum

515/-

2.52/1.86

156/119

245/169

338/217

415/261

471/301

511/343

545/367

566/382

Brodix PB 5002 16 Deg 5.0 BS CNC Alum

509/-

2.52/1.86

148/113

242/167

335/217

406/254

464/316

505/348

535/353

546/359

Brodix - Texas Pro Stock Type Ported Slick Rick Racing Heads I-50 E-55 Alum

N/A

2.40/1.80

157/126

248/160

330-329/200

402-394/235

450-438/262

470-466/278

485-483/290

500-488/298

508-490/303

510-490/308

Brodix SR20 Conventional Darin Morgan Alum

N/A

2.40/1.80

180-182/132

263-266/180

346-345/218

409-411/257

460-461/288

488-484/311

499-493/331

503-502/340

509/344

Canfield 305 Alum CHP

305/-

2.25/1.88
4.25
Pipe

114

75/61

161/115

215/163

257/199

303/228

328/251

339/265

332/273

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Canfield 310 Alum

310/100

2.25/1.88

113/
119/
125

72/74

138/123

204/176

266/205

318/237

347/260

353/273

355/284

Canfield 310 VJ Bowl work Chad Speier Alum

315/-

2.25/1.88

N/A

155-153/-

217/-

282-286/-

329-330/-

349-339/-

352-340/-

355-344/-

343-353/-

341-355/-

Canfield 310 Ported CFM Technologies Alum

N/A

2.25/1.88

N/A

180/133

259/182

311/221

348/250

367/279

373/295

Canfield 310 Ported Jim V Alum

N/A

2.25/1.88
-
No Pipe

N/A

152/132

233/186

295/228

344/256

371/280

380/310

-/326

-/330

Canfield 310 Ported Foxwell Motorsports Alum

N/A

2.25/1.88

118

155-153/117

221/158

283-279/198

335-321/232

369-347/258

386-367/279

379-377/291

Canfield 310 Ported Foxwell Motorsports Alum

N/A

2.30/1.88
-
2.25" Pipe

N/A

161-159/113

226-223/166

292-289/201

347-332/249

386-360/280

401-382/300

404-395/316

412-404/326

Canfield Ported Foxwell Motorsports I-45 Alum

325/-

2.30/1.88
-
2 1/4 Pipe

N/A

158-151/116

225-219/158

290-283/195

338-327/230

373-352/256

381-380/276

390/287

395-393/295

Canfield Ported Foxwell Motorsports I-45 Alum

335/-

2.30/1.88

N/A

164-163/-

231-230/-

297-296/-

348-330/-

381-358/-

402-382/-

410-397/-

415-407/-

419-415/-

Canfield Ported Foxwell Motorsports I-45 Alum

N/A

2.30/1.88
4.60

N/A

166/121

245-247/170

306-312/209

353-346/243

386-368/274

406-387/300

415-406/316

423-415/330

429-419/340

Canfield 310 Ported Jeff Birtchell Alum

N/A

2.25/1.88

N/A

186/140

258/185

313/226

369/264

397/289

406/312

411/316

Canfield Ported Champion Racing Heads SF600 Alum

N/A

2.25/1.88
4.40

N/A

186/143

261/199

313/246

348/276

357/292

366/299

Canfield 310 Weingartner Racing I-BC E-Tuliped Alum

315/-

2.25/1.88
4.31
No Pipe

N/A

68-69/60

135-133/134

201-199/176

259-260/206

306-294/233

326-305/245

352-340/248

333-328/251

330-325/257

323-319/262

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Canfield 350 Alum

350/-

2.30/1.88
-
Pipe

113/
119/
125

82/74

176/123

250/175

313/213

350/256

367/284

376/309

380/320

381/322

Canfield CFE Ported Alum

N/A

420/-

Canfield 310 2012 Foxwell Motorsports Alum

N/A

2.25/1.88

N/A

165/122

235-239/170

301-294/212

340-321/240

358-339/261

356-341/274

351-348/281

Canfield 310 2012 Foxwell Motorsports CNC bowl blend Alum

312-309/-

2.25/1.88

N/A

170-172/123

246-244/170

311-295/212

353-329/245

373-354/274

373-364/295

373-370/309

Canfield 360 Ported Foxwell Motorsports Alum

N/A

2.35/1.88
460

N/A

162-166/119

238-241/174

309/217

366-360/254

406-390/281

427-412/315

433-428/332

441-436/343

448-440/352

CFE/BMF 310 Alum

317/150

2.30/1.88

116

397/304

CFE 366310 Alum

310/150

2.30/1.88

119

259/174

325/212

374/250

386/277

393/292

394/304

DART N.E. Mod. Oval Full Port Back Cut SF600

307-311/ 145

2.25/1.88
4.44
No Pipe

117

153-156/122

223-224/163

281-284/218

314-330/260

340-362/274

356-370/283

364-374/293

DART 265 Oval Super Mod. Alum

275/128

2.30/1.88
4.50
No Pipe

N/A

156/132

216/169

274/203

310/230

324/247

329/255

DART 265 CNC Oval Super Mod. Alum

298/143

2.30/1.88
4.50
No Pipe

N/A

157/142

222/190

274/230

309/263

365/284

380/294

DART 275 Oval CCM Alum

275/-

2.25/1.88
-
No Pipe

119

68/68

151/115

215/155

259/192

293/223

315/244

310/259

DART 308 Iron Eagle

308/129

2.25/1.88
4.50
No Pipe

119

157/136

232/175

291/210

325/233

347/249

359/258

363/266

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART 308 Eagle David Vizard Iron

308/129

2.25/1.88

119

204-201/173

262-265/200

306/226

310-303/250

353-350/259

363-360/269

DART 308 Ported Eagle David Vizard Iron

N/A

2.25/1.88

119

229-222/179

262-272/222

300-303/250

335-303/271

370-354/280

383/289

DART 308 Iron Eagle FlowMotion Performance SF-600 Ported Jim V - Marine

324/138

2.30/1.88
4.60

N/A

218-221/180

292-287/242

341-332/274

376-359/295

393-380/303

396/307

DART 308 Super Mod.

316/128

2.25/1.88
4.50
No Pipe

N/A

153/132

221/169

275/203

318/230

348/247

367/255

DART 320 Out of Box Bill Jones Alum

327/128

2.30/1.88

N/A

73/74

143/148

208/187

246/217

290/238

320/247

DART 320 Super Mod. Alum

327/128

2.30/1.88
4.50
No Pipe

N/A

152/132

216/169

274/203

316/230

338/247

351/255

DART 320 CNC Super Mod. Alum

321/ 123.1

2.25/1.88
-
No Pipe

119.1

157/126

230/165

284/199

319/224

335/236

339/242

339/246

DART 320 CNC Super Mod. Alum

346/143

2.30/1.88
4.50
No Pipe

119.1

157/142

221/190

280/230

326/263

365/284

370/294

DART 335 CNC Weingartner Racing Alum

N/A

2.30/1.88
4.625
No Pipe

N/A

66-54/54

125-122/109

203-195/151

276-258/180

322-309/223

365-340/250

395-365/266

391-380/276

380-373/281

383-375/284

DART 330 Iron Eagle Pro CNC

330/-

2.30/1.88
-
No Pipe

126

157/136

232/175

291/210

325/233

347/249

359/258

363/266

DART 345 Iron Eagle

345/129

2.30/1.88
4.50
No Pipe

119

158/136

228/175

289/210

327/233

358/249

378/258

390/266

DART 345 Eagle David Vizard Iron

345/129

2.30/1.88

119

79/56

162-163/115

249/167

314-315/205

356-350/225

379-371/238

384-377/248

387-379/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART 345 Eagle Basic Ported David Vizard Iron

345/129

2.30/1.88

119

79/56

165-166/118

255-254/177

325-324/228

361-360/251

387-382/270

399-389/292

406-394/299

DART 360 16500000 Kendrick Auto Alum

N/A

2.25/1.9

119

75/68

136/99

184/125

220/152

261/181

294/195

313/202

DART 360 16500000 Ported Kendrick Auto Alum

N/A

2.25/1.9

119

84/73

157/108

223/149

270/181

308/210

348/237

386/259

DART 360 Super Mod.

355/ 124.6

2.30/1.88
-
No Pipe

114.1

152/126

220/165

277/199

324/224

354/236

369/242

373/246

DART 360 Super Mod. Alum

366/128

2.30/1.88
4.50
No Pipe

N/A

154/132

220/169

279/203

321/230

346/247

370/255

DART 360 CNC Super Mod. Alum

389/143

2.30/1.88
4.50
No Pipe

119

157/142

223/190

284/230

337/263

374/284

393/294

DART 360 Out of Box Weingartner Racing Alum

N/A

2.30/1.85
4.50
No Pipe

N/A

77/66

154/107

234/147

288/183

326/210

360/230

363/244

368/250

DART 360 Out of Box Weingartner Racing Brez Alum

N/A

2.30/1.85
4.31
No Pipe

N/A

75/66

166/107

235/147

283/183

327/210

351/230

365/244

378/257

DART 360 CNC Rons Porting Service Alum

N/A

2.30/1.90
-
No Pipe

N/A

185/142

260/183

321/214

357/251

389/282

406/298

420/307

429/318

DART 370 CNC Oval Full Port Back Cut SF600

370/152

2.30/1.88
4.50
No Pipe

125

176-175/135

243-238/187

305-302/231

348-350/280

381-385/292

403-411/310

410-420/319

DART Conventional 22.25 Deg - Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

135-138/-

228/-

312-315/-

375-378/-

427-431/-

459-471/-

477-489/-

480-501/-

485-507/-

DART 360 Rolled 22 Deg - 2009 Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

141-138/-

228/-

315/-

384-378/-

426-431/-

456-471/-

465-489/-

477-501/-

480-507/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART 360 Rolled 22 Deg - 2010 Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

149-150/-

237/-

315/-

384-385/-

434-439/-

463-480/-

481-504/-

495-510/-

501-516/-

DART PRO1 275 Alum

275/-

2.25/1.88
-
No Pipe

121

154/136

225/175

284/210

318/233

341/249

352/258

DART PRO1 Ported BES Alum

333/-

2.30/1.88

129.7

166/136

234/186

296/232

345/262

373/290

388/309

392/326

398/344

DART PRO1 310 Alum

310/129

2.25/1.88
4.50
No Pipe

121

147/137

219/175

275/210

318/233

347/249

364/258

369/266

DART PRO1 310 Ported Jim V Alum

320/-

2.25/1.88
-
No Pipe

N/A

149/130

225/171

295/206

348/256

380/286

394/300

DART PRO1 325 Alum

325/129

2.25/1.88
4.50
No Pipe

121

147/137

223/175

281/210

326/233

353/249

371/258

376/266

DART PRO1 335 CNC Alum

335/138

2.30/1.88
4.50
No Pipe

N/A

174/136

245/178

306/235

353/265

383/282

401/296

406/303

DART PRO1 345 Alum

345/129

2.30/1.88
4.50
No Pipe

121

143/136

214/175

272/210

321/233

359/249

384/258

397/266

DART PRO1 355 CNC Alum

355/138

2.30/1.88
4.50
No Pipe

N/A

177/136

251/178

310/235

360/265

399/282

423/296

426/303

DART PRO1 355 CNC David Vizard Alum

N/A

2.30/1.88

119

77/58

171/123

253/175

325/225

360/250

378-373/272

400-388/292

414-395/303

423-399/306

DART 355 CNC Foxwell Motorsports Alum

N/A

2.30/1.88
4.50

N/A

154-156/117

223-226/163

293-290/227

338-333/266

375-366/288

401-383/302

409-396/307

417-407/321

425-417/331

DART PRO2 Ported SF600 Alum

380/144

2.30/1.88

119

176/134

239/178

304/223

346/274

378/300

402/318

420/330

430/338

438/346

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART PRO 20 Out of Box Weingartner Racing Alum

N/A

2.40/1.8
-
No Pipe

N/A

74-75/50

156-171/109

238-242/157

316-320/208

379-378/278

428-412/284

454-436/293

453-443/300

457-453/300

461-460/-

DART SR2 - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.425/-

N/A

240/-

322/-

392/-

449/-

488/-

497/-

510/-

518/-

525/-

DART Big M Super Mod. Ported Alum

411/147

2.35/1.88
4.60
No Pipe

N/A

160/124

223/159

285/196

336/243

377/268

401/283

415/295

DART Big M Super Mod. Ported Full Polish Alum

411/147

2.35/1.88
4.60
No Pipe

N/A

161/124

235/159

302/196

357/243

394/268

418/283

429/295

DART 18 Deg Oval Alum

330/152

2.25/1.84
-
No Pipe

190/120

254/164

318/191

377/222

404/257

412/301

413/301

DART 18 Deg Oval CNC Alum

383/152

2.35/1.84
-
No Pipe

102

162/136

236/177

314/216

376/254

420/289

444/316

450/330

DART Big Chief 18 Deg PRO1 Alum

424/185

2.40/1.90
-
No Pipe

N/A

158/138

222/185

284/229

345/267

390/293

420/30

431/305

437/309

DART Late Big Chief 18 Deg CNC Super Mod. Alum

402/175

2.40/1.90
4.60
No Pipe

N/A

158/154

234/211

302/266

365/282

407/293

432/297

444/301

DART Late Big Chief 18 Deg Full Port 45 Deg Intake Back Cut Alum

421/186

2.40/1.90
4.60
No Pipe

N/A

165/141

239/191

294/237

356/280

410/315

445/333

461/339

469/351

DART Big Chief 18 Deg Ported ET Performance Alum

N/A

2.40/1.88
4.50

N/A

77-79/61

160-161/130

222-225/180

301-297/232

369-362/274

410-417/290

433-451/308

454-469/320

471-478/331

DART Big Chief 18 Deg Ported MBE I-55 E-55 SF1020 Alum

430/195

2.45/1.80
4.52
No Pipe

90-100

148/122

220/182

293/234

362/282

417/315

463/334

494/336

513/337

522/335

528/-

DART Big Chief 18 Deg Ported Chapman Alum

422/-

2.40/1.90
-
No Pipe

91.5

80/63

160/124

244/174

307/212

359/244

401/272

440/331

466/346

472/350

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART Big Chief 18 Deg CNC Slick Rick Racing Heads Alum

N/A

2.43/1.85
-
No Pipe

N/A

239/199

309/245

370/302

424/342

464/355

496/362

515/366

525/370

535/370

DART 18 Deg CNC Full Alum

424/185

-
-
No Pipe

492/343

DART PRO1 18 Deg CNC Bowls Alum

421/-

2.40/1.90
4.60
No Pipe

N/A

470/340

DART 14 Deg Olds Full Port Alum - CFE

440/-

2.40/1.90

N/A

245/204

326/264

376/312

425/327

457/330

474/340

475/341

DART 14 Deg Olds Full Port Alum

440/-

2.40/1.90
-
No Pipe

N/A

237/192

303/247

361/297

412/317

447/331

457/341

463/345

DART 14 Deg Olds Ported Dr Js Performance I-50 Sf600 Alum

N/A

2.45/-

N/A

167/-

245/-

335/-

415/-

473/-

515/-

532/-

549/-

561/-

567/-

DART Big Chief 14 Deg Oval Full Port I-55 E-55 Deg SF1020 Alum

433/200

2.47/1.80
-
No Pipe

164/129

254/182

333/218

398/251

446/288

482/316

493/338

495/349

DART Big Chief 14 Deg Oval CNC Full Alum

433/-

2.47/1.80
4.60
No Pipe

N/A

515/365

DART Big Chief 14 Deg Oval CNC M2 Race Systems Alum

448/-

2.45/1.85
4.60

144/114

236/165

299/210

375/266

440/306

484/328

518/342

526/352

534/356

DART Big Chief 14 Deg Ported ET Performance Alum

390/-

2.45/1.88
4.625

86-86/62

160-160/129

240-241/195

309-308/261

361-361/301

409-407/318

440-433/328

453-451/334

467-467/336

DART Big Chief 14 Deg Ported ET Performance Alum

440/-

2.45/1.88
4.625

90-95/62

176-175/129

263-261/195

339-338/261

406-403/301

448-442/318

470-465/328

484-473/334

494-487/336

DART Big Chief 14 Deg Ported MBE I-55 E-55 SF600 Alum

449/192

2.45/1.83
4.52
No Pipe

72-89

164/122

235/182

324/234

396/282

458/315

500/334

524/336

525/337

537/335

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART Big Chief 14 Deg 5.0 BS Alum

512/-

2.575/1.90
-
No Pipe

163/152

260/203

344/251

413/302

468/334

512/356

540/366

551/371

560/374

DART 11 Deg Big Chief II Oval Full Port 55 Deg SF1020 Alum

512/185

2.47/1.80
-
No Pipe

N/A

168/137

261/198

337/256

404/301

459/327

498/336

516/341

518/342

528/-

DART 11 Deg Big Chief II Ported MBE I-55 E-55 SF600 Alum

492/185

2.52/1.80
4.52
No Pipe

50-90

172/122

263/172

334/215

408/275

465/302

510/318

535/327

539/331

551/335

565/336

DART 11 Deg Big Chief Oval CNC Full Alum

512/-

2.47/1.80
4.60
No Pipe

N/A

545/360

DART 11 Deg Big Chief Ported BES Alum

N/A

2.50/1.80

N/A

158/130

249/185

344/236

424/294

489/338

527/366

547/378

545/384

556/389

Edelbrock Victor Jr CNC Oval 60409, 60419 SF1020 Alum

320/118

2.25/1.90
-
No Pipe

112

86/64

163/121

244/169

296/206

323/236

332/258

341/276

Edelbrock Victor Jr CNC Rect 60409, 60419,60429, 60439 SF1020 Alum

295/118

2.25/1.90
-
No Pipe

112

86/64

163/121

244/169

296/206

323/236

332/258

341/276

Edelbrock/ Chapman 60429, 60439 Oval Ported Alum

295/118

2.25/1.90
-
No Pipe

112

86/64

160/121

236/169

285/206

307/236

312/258

315/276

Edelbrock 60459, 60479, 60499, 61459 Performer RPM 454-O Alum

290/110

2.19/1.88

110/
112

74/71

143/128

207/153

250/178

284/200

309-299/218

Edelbrock 60459 Performer RPM 454-O Wolfplace FlowData Alum

290/110

2.19/1.88
4.53
No Pipe

110

74-73/64

146-148/119

218/149

260-268/179

291-304/207

307-327/229

302-319/245

Edelbrock Performer 454-O 60479 SF1020 Alum

290/110

2.19/1.88

110

74/71

143/128

207/153

250/178

284/200

309/218

Edelbrock Performer 454-O 60479 CCM Alum

290/110

2.19/1.88
-
No Pipe

110

66/58

135/126

196/149

240/171

264/189

281/203

286/213

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Edelbrock Performer 454-O 60499 SF1020 Alum

290/110

2.19/1.88

110

73/71

143/128

208/153

251/178

284/200

299/218

Edelbrock Performer RPM Xtreme 454-O 51459 SF1020 Alum

308-325/ 133

2.25/1.88
4.31

112

143/125

223-221/172

283-276/199

318-315/217

335-332/232

337/243

344-338/252

Edelbrock Performer RPM 454-R 60559 SF1020 Alum

315-300/ 110

2.19/1.88

118

76/70

146/132

212/156

255/181

294/207

314/228

Edelbrock Performer RPM Xtreme 454-R 51539, %1559 SF1020 Alum

345/145

2.30/1.88

110/118

158/134

237/190

299/227

344/255

366/267

377/272

385/280

Edelbrock Performer RPM 6046 AirWolf 305 Oval Dr Js Performance Alum

305/-

2.30/1.88
4.31
2" Pipe

105/110/115

74/62

145/123

225/165

286/190

329/215

355/235

374/254

381/271

387/287

396/299

Edelbrock 60559, 61559 Performer RPM 454-R Alum

315/110

2.19/1.88

118

76/70

146/132

210/156

255/181

294-284/207

314-297/228

Edelbrock E-CNC Oval 24 Deg SF1020 Alum

308-325/133

2.25/1.88
4.31

112

144-143/125

221-223/172

283-276/199

315-318/217

332-335/232

337/243

337-344/252

Edelbrock E-CNC Oval 24 Deg Large Bore SF1020 Alum

308-325/133

2.25/1.88
4.6

112

149-145/125

230-229/173

299-289/200

337-331/218

358-351/234

364-356/249

361-364/257

Edelbrock 77459 Victor Jr. 24 Deg SF1020 Alum

300/128

2.25/1.90

118

72-70/64

140-139/122

213-210/164

273-267/199

318-297/223

342-307/240

346-309/251

331-317/257

336-324/260

Edelbrock Victor 24 Deg 77409, 77429 SF1020 Alum

340/128

2.30/1.88

118

80-75/62

159-153/123

234-232/164

295-295/197

343-330/223

369-343/241

380-352/255

378-364/262

379-370/265

Edelbrock/ Musi Victor 24 Deg 61409 SF1020 Alum

367-377/ 128

2.30/1.90

114

149-148/122

227-220/164

301-290/196

351-346/225

375-385/248

389-405/268

402-409/284

409-414/297

Edelbrock/ Musi Victor 24 Deg Out of Box NPS Alum

N/A

2.30/1.90
4.49
No Pipe

114

83-76/60

158/114

225-227/159

271-287/192

314-337/222

347-357/249

372-370/272

386-382/285

385-392/298

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Edelbrock/ Musi Victor 24 Deg SF1060 Alum

N/A

2.30/1.90

114

78/62

157/119

237-236/161

300/199

353/238

383-390/267

403-413/284

408-422/296

413-419/305

418-421/312

Edelbrock/ Musi Victor 24 Deg Ported Dr Js Performance I-50 Alum

373/-

2.35/-

N/A

79-72/-

165-154/-

247-242/-

305-310/-

365-368/-

408-425/-

430-448/-

448-462/-

452-467/-

457-475/-

Edelbrock Victor 24 Deg Ported RFD 370 Alum

370/-

2.35/-

N/A

74/-

160/-

251/-

313/-

370/-

403/-

432/-

448/-

455/-

461/-

Edelbrock Victor 24 Deg Ported RFD 370 Alum

370/-

2.35/1.84
-
No Pipe

N/A

76/63

160/122

231/171

304/214

363/244

396/275

420/299

440/317

448/324

459/326

Edelbrock Victor 24 Deg Ported RFD 383 Alum

383/-

2.40/1.84
-
No Pipe

N/A

75/63

160/122

253/171

315/213

372/244

408/274

432/300

449/316

459/324

469/326

Edelbrock Victor 24 Deg Ported RFD 383 Updated 12-04-08 Alum

383/-

2.40/1.84
-
No Pipe

N/A

162/122

235/171

306/213

368/244

408/274

446/300

464/316

472/324

485/326

Edelbrock Ported RFD Flowed Wolfplace FlowData Alum

N/A

2.35/1.84

N/A

75/57

165/114

246/163

314/204

366/244

406/275

432/305

449/324

459/330

Edelbrock/ Chapman 77659 Rect. CNC Ported 77609 Alum

372/154

2.30/1.90
-
No Pipe

130

85/62

156/135

229/198

287/242

328/278

362/300

380/312

Edelbrock Victor 18 Deg 617569 Alum

405/95

2.50/1.96

63/60

150/137

223/190

288/226

353/254

415/277

468/302

496/324

491/328

Edelbrock Big Victor 18 Deg CNC Alum

442- 451/189

2.45/1.85

294-284/230

360-349/258

414-411/281

457-456/302

482-487/319

480-486/324

Flo-Teh 290 SF1020 Alum

290/135

2.25/1.88

112

162/132

240/181

299/219

343/245

367/273

354/279

352/282

Flo-Teh 315 SF1020 Alum

315/121

2.25/1.88

121

146/109

217/149

269/177

303/203

322/223

337/233

337/239

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Flo-Teh 320 SF1020 Alum

315/128

2.25/1.88

133

135/124

207/165

264/206

314/230

346/242

359/245

352/248

Flo-Teh 360 SF1020 Alum

360/128

2.25/1.88

133

161/128

237/181

293/227

345/261

385/273

408/277

408/281

HRD Ported Dart 360 Alum

365/-

2.30/1.88

N/A

157/132

235/177

288/225

341/270

386/302

412/321

424/328

430/333

HRD Ported Dart 360 16500000 Alum

N/A

165/132

247/177

302/225

358/270

405/302

433/321

445/328

452/333

HRD Dart Big Chief 3815 Ported

455/-

2.45/1.86

N/A

167/139

260/197

331/246

411/288

475/339

530/353

550/366

556/372

HRD Dart Big Chief 3815 Ported

444/-

N/A

394/265

444/305

475/353

504/366

514/372

Holley Alum

261/123

2.19/1.88

110

301/-

Holley Avenger Alum CHP

314/-

2.25/1.88
4.25
Pipe

119

71/60

137/122

199/171

251/207

292/233

315/252

330/264

340/269

Import / Speier Alum

338-342/-

2.30/1.88
4.60
No Pipe

N/A

157-160/120

235-237/170

295-296/208

325-339/235

350-354/252

360-365/263

370-373/271

375-373/276

382-373/280

Import / Speier CNC I-45 E-45 Alum

358/-

2.30/1.88
4.60
No Pipe

N/A

160-163/119

244-245/168

310-314/205

345-363/238

377-395/275

394-417/294

410-432/305

422-434/313

432-435/320

Naiser Racing Components - Slick Rick Racing Heads 5.3 BS Billet Pro Mod Alum

N/A

2.70/1.95
-
No Pipe

N/A

238/162

333/205

426/250

502/290

561/325

598/350

627/367

640/378

651/380

660/-

665/-

Naiser Racing Components - Slick Rick Racing Heads SR1 5.3 BS Billet Pro Mod Alum

N/A

2.65/2.00
-
No Pipe

N/A

255/185

345/235

432/279

502/317

552/348

597/371

620/386

630/392

645/392

654/393

660/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Patriot 320 Alum

320/125

2.25/1.88

119

86/64

177/148

252/195

295/231

326/256

359/269

369/275

Patriot 320 Weingartner Racing Alum

N/A

2.25/1.88
4.31
No Pipe

N/A

63-57/60

140-127/103

195-190/154

252-250/189

305-309/242

343-326/256

369-326/266

363-343/266

350-341/267

350-336/268

Patriot Freedom 360 Meaux Racing Cyl 3 SF600 Alum

N/A

2.35/1.88
4.50
No Pipe

N/A

160/139

237/183

290/226

337/256

358/265

371/271

381/274

389/274

395/274

Pro Comp 320 Alum

320/-

2.25/1.88
4.50

118

160/97

226/152

274/181

302/216

318/249

333/268

348/283

Pro Comp 320 CNC RaceParts Alum

N/A

2.25/1.88

115

74/62

166/118

245/160

308/195

340/229

360/248

375/265

Pro Comp 320 Out of Box Meaux Racing SF600 Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

143-145/137

221-220/183

277-273/210

313-312/230

333-331/251

342/263

351-346/274

355-354/282

364-360/286

Pro Comp 320 VJ Bowl / Chamber Work Meaux Racing SF600 Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

152-154/125

242/178

299-305/215

334-345/261

354-359/287

365-369/301

370-374/309

375/312

Pro Comp 360 CNC Alum

360/-

2.25/1.88

115

73/60

141/121

212/166

280/205

331/240

365/265

389/289

404/307

407/321

Pro Comp VJ SSR Polished them out Chad Speier SF600 Alum

N/A

2.30/-
4.31

N/A

160/-

217-210/-

260-255/-

302-292/-

335-320/-

362-345/-

367-352/-

369-358/-

Pro-FilerP/N 174-29 24 Deg Alum

290/-

2.30/1.88

119

148/129

213/162

276/198

327/250

338/261

350/264

Pro-Filer 290 Out of Box CNC Chambers Weingartner Racing Alum

290/-

2.25/1.88
4.13
No Pipe

N/A

76/61

146-143/114

210-208/158

261/188

311-308/224

344-329/249

353-314/259

344-325/268

344-330/273

337-331/276

Pro-Filer 290 24 Deg Darin Morgan Alum

290/-

2.30/1.88

119

155/-

235/-

296/-

350/-

379/-

382/-

385/-

387/-

390/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Pro-Filer 290 Oval VJ Bowl Blend Dr Js Performance Alum

N/A

2.25/1.88
4.31
2" Pipe

118

82/69

163/117

236/160

295/193

335/224

355/251

358/268

Pro-Filer 290 Oval Dr Js Performance CCMAlum

290/78

2.30/1.88
4.30

118

84/69

165/117

236/160

295/193

335/224

356/251

368/268

Pro-Filer 290 Ported Foxwell Motorsports I-45 Alum

N/A

2.35/1.85

N/A

162-161/122

240-230/165

289-286/220

339-333/265

367-349/286

389-371/299

401-393/310

412-404/-

Pro-Filer 290 Oval Ported Chad Speier Alum

N/A

2.25/1.88
4.155
No Pipe

119

168-170/120

231-233/157

285-290/193

333-337/220

352/247

361-357/259

363-359/264

361-362/269

358-364/271

Pro-FilerP/N 174-32 24 Deg Alum

320/-

2.30/1.88

119

164/129

228/162

288/198

337/236

379/250

395/261

392/264

390/268

Pro-FilerP/N 174-35 24 Deg Alum

350/-

2.30/1.88

119

165/129

230/162

290/198

340/235

380/250

400/261

412/264

Pro-FilerP/N 184 12 Deg Alum

470/-

2.40/1.90

160/137

239/182

314/226

384/275

431/298

458/306

483/310

497/320

Pro-Filer 12 Deg CNC MBE Alum

475/187

2.40/1.90

55.5

507/319

Pro-Filer NEW 2010 SniperX Conventional Port CNC Darin Morgan SF600 Alum

375/-

2.35/1.85
-
No Pipe

N/A

156/128

234/171

306/205

360-368/237

407-414/298

427-451/314

444-468/321

459-477/327

472-481/332

Pro-Filer SniperX Conventional Port Darin Morgan SF600 Alum

375/-

2.35/1.85
-
No Pipe

N/A

159/120

236-235/160

307-301/197

360-363/238

396-410/289

422-444/308

437-460/319

444-466/327

454-474/332

Pro-Filer Spread Port Darin Morgan SF600 Alum

N/A

2.40/1.88
-
No Pipe

N/A

161/88

250/130

327/167

401/181

449/192

482/203

496/208

503/212

513/217

Pro Topline 260 Oval Gamrace

260/-

2.19/1.88
4.30
No Pipe

N/A

175/128

218/140

236/149

251/153

255/154

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Pro Topline 260 Oval Ported Gamrace Stage 1

260/-

2.19/1.88
4.30
No Pipe

N/A

205/142

265/169

302/192

302/209

297/225

Pro Topline 300 Ported ET Performance Alum

300/-

2.30/1.80
4.60

120

78-77/63

153-150/133

226-221/167

287-287/199

332-333/223

364-383/239

379-400/250

387-390/-

Pro Topline 320 Alum

320/135

2.25/1.88

119

74/62

166/118

245/160

308/195

339/229

360/248

374/265

Pro Topline 320 Out of Box Alum

320/135

2.25/1.88
4.50

119

83/66

152/138

218/173

278/200

333/232

364/256

375/273

Pro Topline 325 Ported ET Performance Alum

325/-

2.30/1.80
4.50

125

73-72/62

155-156/120

237-238/156

296-301/211

338-351/242

367-385/258

386-399/269

399-405/277

Pro Topline 355 Ported ET Performance Alum

355/-

2.30/1.80
4.625

120

76-78/64

160-160/122

243-240/167

305-307/205

354-367/239

379-400/264

398-417/284

412-419/297

Pro Topline 360 Alum

360/135

2.30/1.88

119

75/62

158/118

230/160

286/195

342/229

380/248

403/265

Pro Topline 400 Ported ET Performance Alum

400/-

2.35/1.80
4.50

125

78-78/67

154-155/123

238-238/160

305-304/198

352-358/228

382-401/266

406-426/292

422-433/303

Reher Morrison Dart 360 Alum

375/-

2.30/1.88

N/A

415/-

Reher Morrison Dart 360 Alum

N/A

2.30/1.88
4.60

118

350/-

420/290

Reher Morrison Dart 360 Alum

N/A

2.325/1.88
4.60

118

360/-

430/300

Reher Morrison Dart 360 Alum

370/-

2.325/1.88
4.60

N/A

435/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Reher Morrison Oval 14 Deg

N/A

2.45/1.85

N/A

400/-

500/-

Reher Morrison 14 Deg

467/-

2.45/1.85

N/A

520/-

Reher Morrison 14 Deg

476/-

2.45/1.85

N/A

510/-

520/-

Reher Morrison 18 Deg

476/-

2.40/1.90

N/A

490/-

505/-

520/-

Reher Morrison Brodix BB-2Plus 26 Deg Alum

320/-

2.25/1.88

119

161/132

244/169

285/204

328/234

359/261

369/274

373/284

Reher Morrison Brodix BB-2 26 Deg Alum

N/A

2.30/1.88

N/A

154/157

222/201

286/233

324/258

360/275

380/286

385/292

Reher Morrison Brodix BB-2Xtra 26 Deg Alum

355/-

2.30/1.88

119

183/134

235/177

294/216

340/247

376/268

395/279

408/288

Reher Morrison Raptor 12 Deg Alum

465/-

2.45/1.85

423/-

525/-

535/-

540/-

Reher Morrison Raptor - Darin Morgan SF600 Alum

N/A

2.45/1.85
-
No Pipe

N/A

153/135

258/190

346/240

422/289

485/315

514/330

526/336

540/339

550/340

Reher Morrison Raptor II - Darin Morgan SF600 I-50 E-50 Alum

480/-

2.45/1.85
4.625
No Pipe

155-161/134

245-243/182

345-350/223

425-427/257

489-487/286

519-515/316

538-527/340

544/354

547-552/358

Reher Morrison 5.3 BS Pro Mod Darin Morgan SF600 Alum

N/A

2.68/2.05
-
No Pipe

N/A

171/125

275/182

374/228

456/274

521/319

568/352

609/374

639/393

659/403

678/413

687/417

698/419

RHS Pro Action Iron

320/-

2.25/1.88

119

75/62

166/118

246/160

309/195

340/229

360/248

375/265

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

RHS Out of Box Weingartner Racing Iron

N/A

2.25/1.88
4.50
No Pipe

N/A

86/70

183/139

252/176

303/205

334/231

341/243

346/258

346/264

RHS 320 Out of Box Weingartner Racing Brez Iron

N/A

2.25/1.88
4.31
No Pipe

N/A

86/66

167/133

237/173

288/206

328/227

350/246

359/255

355/261

RHS 320 Ported Bowl Weingartner Racing Brez Iron

N/A

2.25/1.88
4.31
No Pipe

N/A

163/136

240/180

281/212

327/242

361/261

365/267

373/271

RHS 320 VJ Bowl Blend Foxwell Motorsports Iron

N/A

2.25/1.88

N/A

149/105

218/144

280-278/183

327-328/215

350-357/237

362-357/253

367-357/266

RHS 360 Weingartner Racing I-BC Iron

N/A

2.30/1.88
4.625
No Pipe

N/A

70-68/56

145-138/112

215-207/154

285-277/190

339-333/218

375-351/235

378-356/249

381-363/261

383-371/268

387-375/273

RHS Pro Action Westech Alum

320/-

2.25/1.88

N/A

72-72/60

131-129/114

191-186/156

248-238/193

296-286/224

320-330/252

328-356/276

RHS Pro Action

360/-

2.30/1.88

119

75/62

158/118

230/160

286/195

342/229

380/248

403/265

RHS ProTopLine Ported Meaux Racing Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

154/124

236/171

290/207

319/229

340/245

350/256

356/264

359/268

362/271

RHS ProTopLine Ported Meaux Racing Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

147/139

232/179

294/224

328/271

354/297

376/309

390/318

397/320

405/322

RHS Chad Speier V3.93 I-50 E-50 Iron / Alum

N/A

2.35/1.88
4.60
No Pipe

120

155-151/118

232-230/162

310-303/194

367-354/227

406-383/256

424-410/278

437-429/294

440/308

444-443/316

448-445/318

RHS Chad Speier V4.20 I-50 E-45 Iron

395/-

2.35/1.88
4.50
No Pipe

118

157-160/125

240-244/161

307-308/200

361-366/230

412-402/255

437-430/280

442-433/296

447-442/310

457-446/316

RHS Chad Speier I-50 E-50 Iron

N/A

2.35/1.88
4.60
2.25 Pipe

N/A

155-158/132

234-237/184

301/223

353-351/262

402-388/262

432-417/291

441-430/310

446-439/323

454-451/329

459-455/333

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Sonny's Brodix BB-5 Sportsman Alum

395/123

119

418/275

Sonny's Brodix BB-5 MaxFlow Alum

406/149

113.5.

-/311

439/-

Sonny's Brodix BB-5 MaxFlow Marine Alum

406/149

2.35/1.90

113.5.

383-405/295

401-418/303

Sonny's Brodix BB-5 400 MaxFlow Alum

400/149

2.35/1.90

113.5.

-/311

445/-

Sonny's Dart 360 Ported Alum

N/A

413/297

Sonny's Dart 18 Deg Ported SF600 Alum

N/A

2.35/1.86

N/A

437/339

Sonny's / Brodix PB 2005 14.5 Deg Alum

490/-

2.52/1.86

129/111

199/156

287/196

334/231

431/258

482/274

517/287

540/293

Sonny's / Brodix PB 2005 14.5 Deg Lt Ported Alum

493/175

2.52/1.86

153/132

241/187

323/227

395/258

452/289

499/326

517/338

540/343

Sonny's Brodix 14.5 Deg SF600 Alum

548/204

2.52/1.86
4.625

73-77

555/378

Sonny's Brodix 14.5 Deg Pontiac CNC SF600 Alum

548/204

2.48/1.92
4.60

548/378

Sonny's Brodix 14.5 Deg Pontiac Marine Alum

494/184

2.48/1.90
4.60

N/A

514/-

538/-

Sonny's Hemi Alum

N/A

2.55/1.96

65-95

570/390

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Sonny's Hemi Alum

N/A

2.55/2.00

65-95

570/400

Sonny's Hemi Alum

N/A

2.66/2.00

560/375

Sonny's Hemi Alum

N/A

2.66/2.00

N/A

610/422

Sonny's Hemi Flowed Bill Jones Alum

N/A

2.685/2.00

N/A

72/58

140/121

223/160

307/176

379/229

459/286

516/346

548/377

568/403

590/421

610/433

627/437

Sonny's Hemi 5.0 Inch BS Alum

N/A

2.68/2.04

N/A

615/425

Sonny's Hemi 5.3 Inch BS Alum

N/A

2.80/2.10

N/A

700/480

Sonny's Hemi 5.x Inch BS Alum

680/240

2.90/2.10

N/A

740/475

Sonny's Symmetrical 5.0 Inch BS SF1020 Alum

650/350

2.75/2.00

N/A

-/450

660/-

Sonny's Symmetrical 5.3 Inch BS SF1020 Alum

N/A

2.75/2.00

N/A

-/450

660/-

Sonny's Symmetrical 5.3 Inch BS 16 x 5 Deg Alum

737/290

2.725/2.05

N/A

-/462

700/-

Sonny's Symmetrical 16 x 5 Deg 5.0 Inch BS Billet Alum

540/236

2.52/1.93
4.67

562/400

Sonny's Symmetrical 16 x 5 Deg 5.0 Inch BS Alum

570/236

2.52/1.93
4.67

562/400

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Sonny's Symmetrical 13 x 5 Deg Alum

574/236

2.55/1.93
4.75

74-75

550/375

580/407

Sonny's Symmetrical 13 Deg Marine Alum

547/221

2.52/1.90
4.67

536/366

556/381

Sonny's 11 Deg Alum

N/A

2.65/1.89
4.75

N/A

605/395

Sonny's 11 x 7 Deg 5.0 Inch BS Alum

N/A

2.62/1.90

N/A

590/400

Sonny's 5.0 Inch BS Alum

574/236

2.55/1.93
4.75

580/407

Sonny's 5.0 Inch BS Alum

N/A

2.65/1.89
4.75

N/A

247/185

327/249

404/291

476/326

537/359

578/378

610/402

Steve Schmidt Pro-Filer 12 Deg

N/A

2.40/1.88

N/A

495/365

518/376

Steve Schmidt Pro-filer 12 Deg Nitrous

N/A

515/390

525/405

525/412

Steve Schmidt Pro-Filer 24 Deg Alum

336/-

2.30/1.88

N/A

415/303

Trick Flow Oval SF600 Alum

280/129

2.19/1.88
4.25
2" Pipe

113

74/64

160/113

231/146

275/178

316/209

336/240

347/264

Trick Flow Oval CCM Alum

280/-

2.30/1.88
-
Pipe

113

69/61

141/126

209/159

260/192

292/221

318/246

325/264

Trick Flow Oval CNC Inlet & Bowl Blend Alum

280/129

2.19/1.88
-
Pipe

113

74/64

160/113

231/146

275/178

316/209

336/240

347/264

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Trick Flow R CNC Bowl Blend SF600 Alum

320/137

2.25/1.88
4.50
2" Pipe

122

75/64

155/125

230/166

282/202

320/241

348/270

360/290

362/301

Trick Flow CNC SF600 Alum

320/137

2.25/1.88
-
No Pipe

121

73/64

146-145/118

222-220/160

279-276/188

318-315/215

342-339/238

359-352/258

363-356/268

Trick Flow CNC 320 Weingartner Racing Alum

N/A

2.25/1.88
4.31
No Pipe

N/A

150-149/120

220-213/160

266-263/196

309-308/230

339-330/255

354-347/267

362-357/274

367-362/282

362-373/283

Trick Flow CNC 320 Weingartner Racing Alum

N/A

2.25/1.88
4.625
No Pipe

N/A

149-151/121

225/159

274-277/196

323-315/230

348-338/253

357/265

355-370/273

362-378/278

367-381/282

Trick Flow R CNC Bowl Blend SF600 Alum

340/137

2.25/1.88
-
Pipe

122

77/64

160/125

230/166

283/202

323/241

350/270

366/290

370/301

Trick Flow R CNC Bowl Blend SF600 Alum

360/137

2.30/1.88
4.50
2" Pipe

122

75/64

151/125

227/166

283/202

325/241

362/270

382/290

390/301

World Oval Port Iron CHP

260/-

2.25/1.88

119

71/50

145/105

205/146

243/173

267/190

280/203

282/209

283/214

World 02003 Kendrick Auto Alum

310/-

2.25/1.88

116

81/70

151/115

223/179

276/179

308/192

317/198

321/201

World 02003 Ported Kendrick Auto Alum

310/-

2.25/1.88

116

87/71

160/123

230/186

288/187

323/211

348/240

353/253

World 03003 Kendrick Auto Iron

310/-

2.25/1.88

N/A

72/70

151/120

229/152

273/182

308/195

321/201

326/206

World 03003 Ported Kendrick Auto Iron

310/-

2.25/1.88

N/A

90/70

172/119

258/170

285/194

326/221

353/240

368/256

World Merlin Ported Bullet Cylinder Heads

N/A

2.19/1.88

N/A

80/72

153/121

214/163

253/202

303/233

334/250

354/263

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

World Merlin Iron CHP

310/-

2.25/1.88
4.25
2.25" Pipe

N/A

158/100

216/141

258/175

292/193

313/207

325/213

327/222

World Merlin Alum CHP

310/132

2.25/1.88
4.25
2.25" Pipe

N/A

144/129

217/173

269/195

289/207

296/214

305/214

312/214

World Merlin II Weingartner Racing Brez

N/A

2.30/1.88
4.31
No Pipe

N/A

79/57

159/104

237/150

282/186

330/212

354/229

366/240

353/255

World Merlin 269 SF600 Iron

269/137

2.19/1.88
-
No Pipe

119

75/65

144/121

213/165

275/202

323/239

352/262

355/274

341/282

World Merlin 310 SF600 Iron

310/137

2.30/1.88
-
No Pipe

119

79/59

144/99

208/151

267/193

321/232

363/259

383/276

374/286

World Merlin 345 SF600 Iron

345/137

2.30/1.88
-
No Pipe

119

77/60

145/102

213/159

271/204

326/239

366/261

389/275

374/284

World Merlin 320 SF600 Alum

320/-

2.30/1.88
-
No Pipe

119

77/69

148/120

218/155

278/185

320/215

352/242

372/263

375/280

World Merlin 345 SF600 Alum

345/-

2.30/1.88
-
No Pipe

119

82/71

153/108

221/151

284/184

331/217

369/245

399/267

414/284

World Merlin 350 CNC SF600 Alum

350/135

2.30/1.88
-
No Pipe

119

82/68

149/120

220/156

288/200

340/242

381/269

413/295

426/313

World Merlin III Oval SF600 Iron

269/137

2.30/1.88
-
No Pipe

119

316/290

World Merlin III Oval SF1200 Iron

269/137

2.30/1.88
-
No Pipe

119

293/268

World Merlin III SF600 Alum

310/132

2.30/1.88
-
No Pipe

119

400/290

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

World Merlin III SF1020 Alum

310/132

2.30/1.88
-
No Pipe

119

372/268

World Merlin III SF600 Alum

350/132

2.30/1.88
-
No Pipe

119

410/303

World Merlin III SF1020 Alum

350/132

2.30/1.88
-
No Pipe

119

382/280

World Merlin III CNC SF600 Alum

350/132

2.30/1.88
-
No Pipe

119

434/321

World Merlin III CNC SF1020 Alum

350/132

2.30/1.88
-
No Pipe

119

405/297

World Merlin III CNC SF600 Alum

375/132

2.30/1.88
-
No Pipe

119

440/324

World Merlin III CNC SF1020 Alum

375/132

2.30/1.88
-
No Pipe

119

410/300

World Merlin X 345 16 Deg SF600 Alum

345/132

2.35/1.88

77/64

134/107

187/148

245/183

303/214

349/214

379/254

392/265

World Merlin X 345 16 Deg CNC SF600 Alum

350/132

2.35/1.88

68/56

143/126

228/177

299/205

349/231

391/255

415/273

451/286

World Jenkins Merlin

N/A

2.25/1.88

N/A

73/66

144/129

217/173

269/195

289/207

296/214

305/214

312/215

World Jenkins Alum

345/-

2.30/1.88

117

298/212

330/230

360/230

409

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

348 Iron

N/A

1.94/1.66

N/A

155/135

195/148

200/155

203/160

203/163

348 Iron

N/A

2.055/1.66

N/A

56/49

108/85

158/120

190/143

201/156

205/161

210/163

Hi-Po 348 Iron

N/A

2.06/1.72

N/A

210/-

Hi-Po Iron

N/A

2.203/1.734

N/A

260/-

L80 Iron

N/A

2.19/1.72

N/A

277/195

690 '63 John Goodman Iron

N/A

2.19/1.72

N/A

68/48

131/99

192/141

228/167

252/180

267/182

274/-

690 Skip Fix Cleaned Up Iron

N/A

2.19/1.72

N/A

142/86

211/121

255/150

268/170

277/180

Hi-Po 3814690 / L80 Ported Superior Automotive CCM SF600 Iron

N/A

2.25/1.725

N/A

203/154

300/236

Hi-Po Ported Iron

N/A

91/-

148/-

211/-

267-

280-

300/-

305/225

307/-

309/-

Edelbrock Alum

N/A

2.19/1.72
4.31

N/A

138/98

210/135

246/168

259/190

269/201

274/209

Edelbrock 60819 CNC Alum

220/115

2.19/1.72
4.31

67/60

148/118

221/157

256/184

266/204

273/216

277/221

Edelbrock Performer RPM 60809 SF1020 Alum

215/115

2.19/1.72

N/A

65/52

130/96

192/127

235/163

258/182

260/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM 60809 Alum

220/90

2.19/1.72

N/A

73/62

143/118

203/158

239/185

260/205

272/217

285/222

Edelbrock Ported Calvin Hill Saenz J-600 Alum

N/A

2.19/1.72
4.32

N/A

86/73

178/121

245/161

283/204

312/242

315/260

310/272

Edelbrock John Goodman Alum

N/A

2.19/1.72

N/A

69/53

144/117

211/161

257/194

279/218

285/227

287/229

Edelbrock John Goodman Ported Alum

N/A

2.19/1.72

N/A

68/57

141/119

211/164

266/192

296/221

305/236

312/242

316/245

409Raceparts Mild Port Cleanup Alum

N/A

91/78

148/119

211/152

267/179

288/198

300/210

305/218

307/226

409Raceparts Race Ported Alum

N/A

2.25/1.88

N/A

77/73

145/124

217/171

280/201

323/223

349/236

359/245

362/252

409Raceparts Ported Alum

N/A

2.25/1.88

N/A

101/73

178/124

251/171

303/201

330/223

341/236

353/245

360/252

409Raceparts Ported Fast Fred Alum

N/A

2.25/1.88
4.35
No Pipe

N/A

86/90

163/153

237/200

298/232

334/261

343/287

352/292

Chrysler

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler 2.2 445

N/A

Stock

N/A

53/39

103/75

140/97

156/113

165/123

Chrysler '93-94 782

N/A

Stock

N/A

42/39

81/76

109/93

130/106

143/112

Chrysler Swirl

N/A

1.60/1.39

N/A

98/78

125/103

145/122

157/128

Chrysler Swirl Ported

N/A

1.60/1.39

N/A

157/121

177/132

Chrysler Swirl Ported

N/A

100/91

137/111

165/129

185/143

Chrysler "G"

N/A

1.60/1.39

N/A

49/38

98/79

131/106

152/119

163/124

Chrysler "G" Ported Welded

N/A

55/53

108/97

153/129

177/160

195/175

210/184

Chrysler Slant 6

-/71

N/A

-/42

-/74

-/98

-/116

-/121

-/124

Chrysler Slant 6 Ported Pacer

-/79

1.72/1.50

N/A

58/55

111/95

156/124

184/141

195/147

-/154

Chrysler Slant 6 Ported

N/A

1.88/1.50

N/A

58/46

121/102

146/124

185/139

195/161

203/163

CHI HEMI 6 Alum

N/A

2.02/1.60

N/A

63/56

135/112

190/134

231/172

266/194

276/205

Chrysler 318 Poly Gary Pavlovich

N/A

Stock

N/A

50/45

116/83

149/106

171/126

183/150

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler 318 Poly Ported Gary Pavlovich

N/A

69/48

145/88

188/113

202/134

211/159

218/164

Chrysler Poly Pocket Ported

N/A

1.845/1.565

N/A

228/160

Chrysler 3.5l v6 Frank Racing

N/A

36.5mm/ 29mm

N/A

91/53

164/125

213/163

227/168

234/174

Chrysler 3.5l v6 Ported Stage 1 Frank Racing

N/A

36.5mm/ 29mm

N/A

94/75

184/144

252/178

290/180

295/184

_Chrysler

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

Average

Avenger MORGO Systems

N/A

48/39

84/72

129/108

164/126

169/135

178/136

178/137

177/138

Avenger Ported MORGO Systems

N/A

50/46

95/74

138/114

169/133

192/148

197/151

201/154

206/156

Jeep

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Jeep 2686 Greg Friedman Iron

N/A

1.91/1.50

N/A

122/88

168/114

186/130

189/134

192/138

Jeep 2686 Iron

N/A

1.91/1.50

N/A

129/93

178/121

197/137

200/142

203/146

Jeep 2686 Ported Iron

N/A

1.91/1.50

N/A

131/92

194/120

208/146

219/162

229/168

Jeep HO 0630 - 7120 Iron

N/A

1.91/1.50

N/A

135/106

189/127

218/144

221/149

Jeep HO 0630 - 7120 John Brown Iron

N/A

1.91/1.50

N/A

66/55

128/100

179/120

206/136

209/141

Jeep 4.0 NH2-J07-7120-D-93 Reconditioned Head Out of Box Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/48

115/89

170/114

200/124

210/127

Jeep 4.0 NH2-J07-7120-D-93 Reconditioned Head Ported Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/60

128/102

183/126

223/144

244/149

Jeep HO 0331 Iron

N/A

1.91/1.50

N/A

59/47

123/93

171/123

201/141

214/147

218/150

Jeep HO 0331 Iron

N/A

1.91/1.50

N/A

120/99

175/124

205/133

211/138

217/141

Jeep HO 0331 FWM Iron

N/A

1.91/1.50

N/A

119/82

173/111

191/132

211/141

Jeep HO 0331 Modified FWM Iron

N/A

1.91/1.50

N/A

70/58

128/106

190/127

211/144

221/162

Jeep HO Ported Clearwater Cyl. Heads Iron

N/A

2.02/1.60

N/A

78/69

151/121

209/144

243/155

261/166

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Jeep 4.0 Dr Js performance Iron

N/A

1.91/1.50

N/A

64/60

132/99

179/126

206/141

210/149

208/154

208/157

Jeep 4.0 Ported Dr Js performance Iron

N/A

1.91/1.50

N/A

67/60

137/101

190/133

227/164

237/182

239/197

239/205

Jeep 4.0 Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

62/45

120/85

168/113

198/124

198/127

Jeep 4.0 Bill Jones Bowl Blend, Light Port Cleanup Iron

N/A

1.91/1.50
-
No Pipe

N/A

62/46

122/85

176/116

211/136

218/149

Jeep 4.0 Bill Jones Above plus VJ Back Cut and Blend Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/56

126/91

180/125

221/141

218/157

Patroit Performance Jeep 4.0 / 4.2 Alum

N/A

1.90/1.50

250/147

Hesco Alum

138/76.4

1.90/1.55

59.6

74/55

134/93

183/117

226/131

255/142

Neon

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.450

.500

.600

.700

.800

Average

Chrysler Neon 2.0 1 st Gen CCH

N/A

Stock

N/A

214/132

Chrysler Neon 2.0 1 st Gen Ported CCH

N/A

Stock

N/A

251/165

Chrysler Neon SOHC

N/A

33.25mm/ 28.75mm
-
No Pipe

N/A

223/116

Chrysler Neon SOHC

N/A

33.25mm/ 28.75mm

N/A

171/111

211/116

229/119

234/121

237/123

240/125

Chrysler Neon SOHC '94-00 CNC M2 Race Systems

N/A

35.25mm/ 25.7mm
3.575

N/A

177/139

235/165

255/177

268/190

275/195

Chrysler Neon SOHC Ported Mike

N/A

243/175

Chrysler Neon DOHC Mike Alum

N/A

34.75mm/ 30.5mm

N/A

77/80

160/147

219/163

243/165

250/165

Chrysler Neon DOHC Ported Mike Alum

N/A

34.75mm/ 30.5mm

N/A

94/82

178/146

247/201

274/218

279/233

Chrysler Neon DOHC Ported Mike Alum

N/A

34.75mm/ 30.5

N/A

95/86

184/166

257/208

270/222

301/237

Chrysler 2.0 NEON DOHC Alum

N/A

34.75mm/ 30.5

N/A

92/88

173/151

232/166

252/170

257/171

Chrysler Neon SRT-4 JM Cylinder Heads SF600 Alum

N/A

34.75mm/28.4mm

95/78

168/148

212/169

233/171

234/171

Chrysler Neon SRT-4 Ported Stage 2 JM Cylinder Heads SF600 Alum

N/A

36mm/30.5mm

95/91

174/207

228/226

258/235

267/238

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.450

.500

.600

.700

.800

Average

Viper - V10

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler '97 Viper

214/70

1.92/1.58

61/54

118/115

167/155

203/180

229/185

242/187

Chrysler Viper Ported Hennessey

N/A

62/-

122/-

179/-

228/-

261/-

274/-

Chrysler Viper Ported Caldwell

N/A

61/59

125/116

178/170

214/204

247/210

270/214

Chrysler Viper BTR Base Port

N/A

1.92/1.52

N/A

122/-

162/-

198/-

226/-

237/-

Chrysler Viper BTR Perf Stage I

N/A

1.92/1.58

N/A

122/-

168/-

207/-

230/-

245/-

Chrysler Viper BTR Perf Stage II

N/A

2.02/1.60

N/A

122/124

174/163

221/195

259/204

276/211

Chrysler '96-02 Viper CNC M2 Race Systems

249/-

2.02/1.60
4.03

60/47

121/112

176/162

219/200

261/212

293/217

Chrysler '02 Viper Ported ET Performance

N/A

2.04/1.60
4.03

69/56

133/121

197/172

242/203

269/213

288/218

286/220

Chrysler '03 Viper Ported ET Performance

N/A

2.04/1.60
4.03

68/60

138/121

216/174

264/202

282/212

301/217

309/219

Chrysler '08 Viper Greg Good Bowls and Chamber Ported

N/A

2.08/1.60

N/A

160/117

240/177

294/217

334/237

336/248

328/252

Chrysler Viper Gen I ('92-'96) JM Cylinder Heads SF600

N/A

1.92/1.58

N/A

64/50

122/107

173/146

208/170

220/181

218/187

Chrysler Viper Gen I ('92-'96) Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

68/56

138/119

197/163

240/207

272/231

279/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler Viper Gen I Ported Greg Good

N/A

135/121

202/165

243/205

282/226

305/235

Chrysler Viper Gen II ('96-'02) JM Cylinder Heads SF600

N/A

1.92/1.58

N/A

61/50

119/117

162/154

193/180

218/185

228/189

Chrysler Viper Gen II ('96-'02) Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

67/57

133/119

194/171

239/201

266/211

288/219

Chrysler Viper Gen II Ported Louthan Stage 3

N/A

2.02/1.60

N/A

280/-

Chrysler Viper Gen III ('03-)JM Cylinder Heads SF600

N/A

2.00/1.58

N/A

66/53

136/113

195/155

237/174

258/182

268/185

Chrysler Viper Gen III ('03-)Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

68/60

138/123

216/185

264/211

287/224

301/231

Chrysler Viper Gen III Ported Port Pros Stage 3

N/A

2.04/1.60

N/A

75/60

140/123

190/175

241/215

281/235

322/242

Striker Street Gen II Gen III JM Cylinder Heads Stage 3

N/A

2.04/1.60

N/A

72/55

150/115

218/165

269/201

304/222

326/229

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 051 Iron MMM

158/66

N/A

50/49

113/97

165/123

188/133

193/137

189/137

Chrysler 915 360 Mr_340 Iron

160/70

1.88/1.60

N/A

118/85

166/119

190/126

196/129

193/133

Chrysler 915J Iron HPMM

156/73

2.02/1.60

N/A

66/63

123/110

170/135

206/145

220/148

216/148

Chrysler 915J Ported I-Nailhead E-Tulip SF600 Iron

192/-

2.02/1.60

N/A

66/46

134/90

191/128

238/157

271/170

283/176

Chrysler 915 Ported Iron

N/A

2.02/1.60

N/A

62/58

134/115

190/141

233/158

259/172

274/182

Chrysler 915 Ported BJR Racing Iron

N/A

1.88/1.60
-
No Pipe

N/A

91/89

184/133

222/176

239/191

283/196

276/201

Chrysler J

N/A

2.02/1.60

N/A

62/47

112/99

157/128

193/137

200/140

201/141

Chrysler J Ported Shady Dell Speed Shop

N/A

2.02/1.60
4.25
No Pipe

N/A

62/52

135/103

199/135

240/159

258/183

255/186

Chrysler 974 Cleaned and milled IQ52 Iron

N/A

1.88/1.60
-
Pipe

N/A

58/50

115/92

173/132

202/143

208/145

Chrysler 974 Cleaned and milled IQ52 11/32 SS Iron

N/A

2.02/1.60
-
Pipe

N/A

65/50

132/103

184/131

207/143

210/146

Chrysler 340 std. Iron

160/70

2.02/1.60

189/142

Chrysler 340 X 894 Iron MMM

158/73

N/A

58/45

125/95

172/122

208/135

221/140

210/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 587 360 Mr_340 Iron

160/70

1.88/1.60

N/A

110/90

165/117

190/135

190/140

185/141

Chrysler 587 360 Mr_340 Iron

N/A

2.02/1.60

N/A

127/97

181/128

213/143

215/147

Chrysler 587 340 Iron

160/70

1.88/1.60

63.3

214/136

213/142

Chrysler 587 340 Iron CCM

160/70

1.88/1.60
-
No Pipe

63.3

52/46

107/87

162/112

195/121

191/124

192/126

Chrysler 587 340 Ported Iron HPMM

N/A

1.88/1.60
-
No Pipe

N/A

63/57

126/95

181/132

230/138

253/160

241/179

Chrysler 308 360 Iron

160/68

1.88/1.60

201/142

209/147

204/147

Chrysler 308 360 Iron

160/68

1.88/1.60

N/A

54/52

108/100

164/135

195/152

208/157

Chrysler 308 360 - Hughes Stage I Ported Iron

172/-

N/A

245/-

Chrysler 308 360 - Hughes Stage II Ported Iron

195/-

N/A

265/-

Chrysler MP 5249574 / 579 Bowl Blend - Intake Gasket Matched BJR Racing

N/A

2.02/1.60
-
No Pipe

N/A

84/84

161/119

207/145

241/185

255/192

241/192

Chrysler Truck Magnum Iron

N/A

1.92/1.625

N/A

131/97

186/132

212/145

212/146

214/147

215/147

Chrysler Truck Magnum Ported Shady Dell Speed Shop Iron

N/A

1.92/1.625

N/A

133/116

196/157

225/172

250/177

259/181

260/181

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 137 360 Magnum CCM

153/-

1.92/1.625

60/54

118/99

165/131

195/137

209/138

205/138

Chrysler Magnum BJR Racing

N/A

1.92/1.625
-
No Pipe

N/A

84/80

132/118

201/134

226/134

235/134

236/134

Chrysler Magnum Ported BJR Racing

N/A

1.92/1.625
-
No Pipe

N/A

84/84

139/130

201/190

231/192

246/190

252/190

Chrysler 576 360 High Swirl CCM Iron

160/68

2.02/1.60

62/55

112/99

160/119

182/126

192/128

187/130

Chrysler 302 318 Swirl

160/68

1.78/1.50

N/A

105/71

152/104

187/113

190/117

190/120

Chrysler 302 318 Swirl

160/68

1.78/1.50
-
No Pipe

N/A

92/71

130/104

164/113

170/117

172/120

Chrysler 302 318 Swirl Ported Shady Dell Speed Shop

151/-

2.02/1.60
4.25
No Pipe

N/A

148/86

212/114

241/131

247/140

241/145

Chrysler 302 Ported Hughes Engines

N/A

2.02/-

N/A

70/-

141/-

202/-

239/-

268/-

250/-

Chrysler 302 Full Ported Hughes Engines

N/A

2.055/-

N/A

67/-

127/-

187/-

241/-

285/-

298/-

Chrysler 302 Flowtech - Steven Magnotti SF110 Alum

N/A

1.88/1.617

N/A

50/42

109/97

164/118

177/146

190/163

198/-

Chrysler 596 '78 360 Iron CCM

158/66

65.5

53/48

107/89

159/114

185/121

199/123

193/124

Chrysler 596 Iron

158/66

1.88/1.60

N/A

63/48

117/98

174/121

193/126

192/128

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 596 Ported Shady Dell Iron

N/A

1.88/-

N/A

59/-

120/-

183/-

226/-

241/-

249/-

Chrysler 596 Hughes Iron

N/A

1.88/1.60

N/A

66/51

89/103

136/131

184/140

184/141

Chrysler 596 Ported / Stealth Hughes Iron

N/A

2.02/1.60

N/A

71/80

144/124

192/149

226/160

223/168

Chrysler Magnum Hughes

N/A

1.92/1.62

N/A

51/55

121/109

181/148

207/171

209/176

208/178

Chrysler Magnum 360

N/A

1.925/1.625

N/A

121/109

181/148

207/170

209/176

Chrysler Magnum 360 Ported ET Performance

177/-

1.955/1.625
4.155

N/A

66/51

127/102

174/140

218/169

249/186

Chrysler 140 Magnum R/T CCM

180/71

1.925/1.625

70/62

137/111

181/142

209/163

211/168

211/171

Chrysler 140 Magnum R/T MMM

N/A

1.92/1.625
-
No Pipe

N/A

60/56

123/107

173/150

205/170

219/177

223/180-

220/-

Chrysler 140 Magnum R/T Blend Bowl to VJ MMM

N/A

1.92/1.625
-
No Pipe

N/A

62/55

125/108

177/149

217/173

238/183

246/187

242/189

Chrysler 140 Magnum R/T Full Port MMM

N/A

1.92/1.625
-
No Pipe

N/A

66/59

128/116

178/155

222/179

246/204

264/213

271/217

Chrysler Magnum R/T Shady Dell Speed Shop

N/A

1.92/1.625
-
No Pipe

N/A

136/110

195/155

227/173

239/179

245/182

241/183

Chrysler Magnum R/T Ported Shady Dell Speed Shop

N/A

1.92/1.625
4.25
No Pipe

N/A

148/112

209/155

243/189

257/198

268/201

281/203

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler Magnum R/T Ported Shady Dell Speed Shop

N/A

2.02/1.625
4.25
No Pipe

N/A

138/105

200/152

245/186

282/198

304/205

293/209

Chrysler MP Commando / Magnum

N/A

2.02/1.60

N/A

116/84

166/115

213/141

250/163

263/177

273/187

280/188

Chrysler MP Commando / Magnum Ported

N/A

2.02/1.60

N/A

102/94

150/126

201/152

239/176

271/187

291/193

301/196

Chrysler Commando

N/A

2.02/1.60

N/A

104/93

153/131

201/153

240/162

245/166

Chrysler Commando Ported Shady Dell Speed Shop

N/A

2.05/1.60
4.25
No Pipe

N/A

148/123

207/192

254/233

289/243

312/243

Chrysler W2 P5007355 RedEye Iron

N/A

2.02/1.60

64/59

120/122

169/147

210/156

237/161

250/168

260/168

Chrysler W2 P5249769 RedEye Iron

N/A

2.02/1.60

61/58

120/123

169/147

208/156

232/161

238/162

244/162

Chrysler W2 P5249769 Ported Bullet Cylinder Heads Iron

230/91

2.08/1.60

72/57

141/109

201/173

254/206

294/222

310/231

318/238

Chrysler W2 P5007445AB RedEye Iron

N/A

2.02/1.60

62/59

121/122

170/149

211/160

243/170

257/172

265/172

Chrysler W2 P5007708AB RedEye Iron

N/A

2.02/1.60

60/57

117/118

165/145

205/155

233/163

247/165

254/165

Chrysler W2 Iron

185/-

2.02/1.60

N/A

63/57

121/105

169/132

211/144

238/148

242/150

Chrysler W2 Iron HPMM

N/A

2.02/1.60

N/A

173/141

215/148

244/151

254/151

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W2 Ported Iron

N/A

2.02/1.60

N/A

188/170

236/197

272/209

300/213

315/230

Chrysler W2 810 Flowtech - Steven Magnotti SF110 Alum

N/A

2.08/-
4.00

N/A

70/-

140/-

204/-

247/-

252/-

Chrysler W2 810 Fully Ported Flowtech - Steven Magnotti SF110 Alum

N/A

2.08/-
4.00

N/A

75/-

154/-

221/-

273/-

293/-

302/-

Chrysler W2 994 Johnson

188/-

2.02/1.60

N/A

59/50

122/110

182/154

229/173

262/176

265/174

250/172

Chrysler W2 994 Ported Ryan Johnson

196/-

2.02/1.60

N/A

60/50

127/105

184/154

232/185

274/200

302/208

280/211

Chrysler W2 Ported Shady Dell Speed Shop

N/A

2.02/1.60
4.25
No Pipe

N/A

83/55

148/108

205/160

255/193

291/209

313/215

321/217

Chrysler W2 Ported Batten Stage 3 Alum

235/-

2.08/1.60
4.25
No Pipe

N/A

138/112

199/164

253/193

292/206

316/212

329/213

Chrysler W5 Shady Dell Speed Shop Alum

N/A

2.02/1.60
-
No Pipe

N/A

61/45

104/83

155/122

207/149

244/164

263/172

263/173

Chrysler W5 '96 Flowtech - Steven Magnotti SF110 Alum

N/A

2.05/1.60
4.00

N/A

51/65

104/110

160/137

205/150

241/159

257/162

266/166

Chrysler W5 Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

142/114

204/150

256/195

300/225

319/238

328/244

Chrysler W5 Max Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

145/120

209/171

260/217

303/245

335/258

337/263

Chrysler W5 Ported Mr P Body Alum

N/A

2.02/-
4.03

N/A

72/-

151/-

217/-

257/-

279/-

290/-

295/-

303/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dodge P-7 Ported Chapman Alum

327/-

2.18/1.61
-
No Pipe

49.5

139/112

225/161

300/211

359/247

376/258

379/267

381/271

Dodge P-7 Ported HRD Alum

N/A

2.16/1.62

N/A

133/124

233/179

313/227

347/254

380/267

394/276

403/281

Dodge P-7 Ported ET Performance Alum

302/-

2.18/1.625
4.18

52.5

67/46

138/102

227/143

301/187

355/216

376/240

389/249

403/254

Dodge P-7 Ported ET Performance Alum

330/-

2.18/1.625
4.18

54.5

67/46

142/102

230/143

302/187

363/216

385/240

394/249

400/254

Dodge Cup Head Ported MBE Alum

328/-

-
-
No Pipe

N/A

412/-

Chrysler W7 Ported Shady Dell Speed Shop Alum

252/-

2.15/1.60
4.25
No Pipe

N/A

148/100

216/147

272/194

311/224

350/244

362/257

Chrysler W8 Ported Chapman

269/-

2.18/1.625
-
No Pipe

71/56

153/110

224/176

284/216

327/223

343/243

352/252

Chrysler W8 RS Ported Chapman

278/-

2.18/1.625
-
No Pipe

47.5

70/52

151/109

225/178

288/222

334/245

351/258

355/265

Chrysler W8 CNC by M2 Race Systems

272/-

2.18/1.60
4.125

236/165

297/218

340/244

361/255

373/262

373/267

Chrysler W8 Ported Shady Dell Speed Shop

N/A

2.16/1.625
4.25
No Pipe

N/A

128/97

198/138

277/200

339/236

377/259

392/271

393/276

Chrysler W8 Ported ET Performance

N/A

2.18/1.625
4.155

N/A

69/51

134/101

199/144

256/187

310/218

353/238

371/250

-/258

Chrysler W8 Brett Ported

298/-

2.18/-

N/A

276/-

329/-

367/-

382/-

394/-

403/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W8 Ported Truck Series

N/A

2.18/1.65

N/A

139/106

202/156

266/205

312/235

358/251

380/261

384/266

Chrysler W9

N/A

2.15/1.60

N/A

129/103

190/147

240/172

288/183

295/185

Chrysler W9 261 Ported Chapman 360 Sprint

261/-

2.15/1.625
-
No Pipe

68/52

150/112

230/181

293/220

335/239

340/243

342/250

Chrysler W9 261 Ported Chapman Sprint

261/-

2.18/1.625
-
No Pipe

148/103

217/159

276/204

320/226

306/241

351/251

Chrysler W9 268 Ported Chapman

268/-

2.20/1.625
-
No Pipe

68/52

151/112

230/181

294/220

338/239

347/243

350/250

Chrysler W9 274 Hutter

274/-

2.18/1.625

134/111

209/161

271/201

320/240

347/253

365/260

Chrysler W9 RP 278 Ported Chapman Midget

278/124

2.15/1.60
-
No Pipe

66/49

145/116

221/201

289/244

339/260

368/267

371/270

Chrysler W9 RP 296 Ported Chapman

296/124

2.20/1.60
-
No Pipe

68/47

146/110

227/169

299/217

342/240

369/252

383/259

385/262

Chrysler W9 RP 325 Ported Chapman

325/-

2.25/1.625
-
No Pipe

72/58

137/119

214/192

282/246

341/260

379/266

405/269

419/272

Chrysler W9 Ported Shady Dell Speed Shop

272/-

2.15/1.60
4.25
No Pipe

N/A

141/103

200/159

245/204

304/226

350/241

379/251

Chrysler W9 Ported ET Performance

N/A

2.18/1.60
4.155

75/59

144/124

219/192

274/226

318/242

350/251

351/258

348/263

Chrysler W9 Ported Jones Engineering

300/-

2.20/1.60

156/118

230/175

292/223

340/241

373/249

390/261

399/265

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AIRWOLF 220 Dr Js Performance Alum

220/-

2.08/1.60

N/A

72/-

144/-

219/-

273/-

301/-

312/-

316/-

319/-

321/-

326/-

Brodix SP MO Alum

192/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Brodix B1 BA SUPR Alum

192/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Brodix B1 BA Alum

195/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Brodix B1 BA '94 Flowtech - Steven Magnotti Intake 30 Deg Back Cut SF110 Alum

195/-

2.08/1.60
4.25

N/A

68/46

129/105

171/139

198/162

223/178

227/184

-/187

Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Exhaust plus Seats Recut SF110 Alum

205/-

2.08/1.60
4.25

N/A

63/50

130/109

185/171

231/213

274/226

291/236

297/242

Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Intake - Exhaust plus Seats Recut SF110 Alum

N/A

2.20/1.60
4.25

N/A

65/50

136/109

196/171

248/213

284/226

308/236

320/242

Brodix B1 BA Ported Alum

N/A

2.08/1.60

145/121

203/169

250/195

286/208

300/214

303/217

Brodix B1 BA Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

120/101

169/137

202/160

226/168

239/172

245/172

Brodix B1 BA Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

135/102

192/143

239/173

276/191

297/207

314/217

Brodix B1 BA Ported Scott Brown Alum

214/-

2.08/1.60
4.03
2" Pipe

N/A

69/62

138/120

188/157

232/215

264/237

288/249

298/263

Brodix B1 BA MC Ported Alum

239/-

2.14/1.60

147/120

216/170

272/198

309/210

332/215

347/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix B1 BA MC Shady Dell Speed Shop Alum

239/-

2.15/1.60

72/-

128/-

183/-

209/-

241/-

255/-

266/-

Brodix B1 BA MC Ported Shady Dell Speed Shop Alum

N/A

2.15/1.60
4.25
No Pipe

N/A

83/76

152/124

210/172

254/207

296/226

326/236

349/242

Brodix B1 Ported Bullet Cylinder Heads Alum

N/A

2.08/1.60

65/57

129/111

187/177

238/216

271/235

291/241

295/244

Edelbrock Performer RPM (340) 6077 NPS Out of Box Alum

171/77

2.02/1.60
4.016
No Pipe

N/A

61/53

121/101

173/135

212/155

235/164

247/168

246/168

Edelbrock Performer Intake Gasket Matched Exhaust Ported BJR Racing Alum

N/A

2.02/1.60
-
No Pipe

N/A

92/86

167/127

207/152

242/195

280/205

285/210

291/216

Edelbrock Performer RPM Ported Anderson Port Development SF1020 Alum

N/A

2.02/1.60

N/A

73/-

138/-

191/-

246/-

292/-

321/-

334/-

338/-

342/-

Edelbrock Performer RPM Magnum 61779 SF1020 Alum

176/75

2.02/1.60

62/52

119/105

175/142

225/169

251/185

260/190

Edelbrock Performer RPM Magnum Dr Js Performance Alum

N/A

2.02/1.60
-
Pipe

N/A

59/51

116/100

171/138

219/159

247/177

254/182

260/189

Edelbrock Performer RPM Magnum Ported Dr Js Performance Alum

N/A

2.02/1.60
-
Pipe

N/A

74/62

151/118

221/160

263/196

288/217

294/220

297/236

Edelbrock Ported Hughes Alum

N/A

2.02/1.60

N/A

63/66

141/129

206/150

253/176

282/182

285/188

Edelbrock CNC Hughes Stage 3 Alum

N/A

2.08/1.60

N/A

71/76

146/118

215/156

262/173

286/189

294/198

298/200

Edelbrock Magnum MMM Alum

N/A

2.02/1.60

N/A

62/52

119/105

175/142

225/169

251/185

260/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Magnum Shady Dell Speed Shop Alum

N/A

2.02/1.60
4.25
No Pipe

N/A

128/105

184/139

225/164

249/177

265/183

267/184

Edelbrock Magnum Stage 3 Ported Shady Dell Speed Shop Alum

N/A

2.02/1.60
4.25
No Pipe

N/A

145/112

204/152

255/190

286/202

297/208

297/211

Edelbrock Stage 4 Ported Shady Dell Speed Shop Alum

N/A

2.05/1.60
4.25
No Pipe

N/A

147/112

207/164

255/193

279/212

293/226

293/231

Edelbrock Stage 3 Ported Aerohead Alum

N/A

2.08/1.60

N/A

72/66

132/113

197/145

248/170

277/183

302/191

306/197

EngineQuest CH318A 5.2l/5.9l Magnum Iron

172/-

1.92/1.625

N/A

68/57

124/114

179/155

213/180

227/187

233/189

EngineQuest CH318A 5.2l/5.9l Magnun Ported Iron

N/A

2.02/1.60

N/A

69/60

138/124

200/169

247/200

273/219

275/229

EngineQuest CH318B Magnun Iron

172/-

1.92/1.625

N/A

66/55

121/101

179/142

214/168

226/174

235/175

238/-

EngineQuest CH318B Magnun Ported SKMFX Engines Iron

N/A

2.02/1.60

N/A

65/56

132/110

189/150

240/168

278/178

300/184

301/185

Indy 360X IQ52 Out of Box Iron

N/A

-
-
Pipe

N/A

57/52

124/105

184/-

230/-

255/-

257/201

249/208

Indy 360X Hughes Iron

179/67

1.92/1.625

116/91

177/138

224/167

252/174

263/177

264/179

Indy 360X Brian Hafliger Iron

N/A

2.02/-
4.03

N/A

68/-

142/-

201/-

249/-

281/-

296/-

294/-

Indy 360-1

210/85

2.10/1.65

102/79

147/112

200/145

252/170

278/183

280/189

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 360-1 Out of Box Shady Dell Speed Shop

N/A

2.10/1.625
4.25
No Pipe

N/A

72/52

138/90

198/132

240/163

271/177

278/186

271/190

Indy 360-1 Ported Shady Dell Speed Shop

228/-

2.10/1.625
4.25
No Pipe

N/A

157/110

217/158

263/204

304/222

322/230

334/241

Indy 360-1 Full Porting

245/95

2.14/1.65

N/A

135/115

202/155

259/185

295/206

325/219

339/226

Indy 360-1 245 Out of Box Shady Dell Speed Shop

255/-

2.15/-

N/A

69/-

147/-

213/-

269/-

294/-

312/-

322/-

Indy 360-1 245 Ported Shady Dell Speed Shop

255/-

2.15/-

N/A

70/-

144/-

210/-

269/-

313/-

344/-

361/-

Indy 360-2

180/85

2.10/1.65

83/79

138/112

186/145

230/170

249/183

252/189

Indy 360-2

180/85

2.10/1.65

83/79

138/112

186/145

230/170

249/183

252/189

Indy 360-2 Full Porting

230/99

2.10/1.65

146/107

209/145

259/183

295/202

310/215

317/220

Indy 360-2 Full Porting - Bowls Blended Exhaust Short Turn Brian

N/A

2.10/1.65

N/A

151/128

220/172

277/209

300/231

320/244

320/253

Indy 360-2 Ported Shady Dell Speed Shop Oval

230/-

2.10/1.625
4.25
No Pipe

N/A

146/112

210/158

266/198

309/225

323/243

323/255

Indy 360 R Ported Bullet Cylinder Heads

230/91

2.10/1.60

70/51

138/105

208/159

259/188

300/213

318/224

334/235

RHS Mild Bowl/Seat Blend

N/A

2.02/1.60

N/A

69/58

141/119

197/161

241/184

267/193

271/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Shanons Engineering 360 Full Porting

N/A

2.19/1.65

338/226

HEMI

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

5.7l

N/A

2.00/1.55
-
No Pipe

74/52

144/111

210/146

251/160

265/164

267/166

5.7l Ported

N/A

2.00/1.55
-
No Pipe

N/A

64/47

134/104

210/145

266/170

300/194

320/204

5.7l Fastman

N/A

2.00/1.55

65/-

144/-

214/-

250/-

262/-

265/161

268/-

269/-

5.7l Ported Fastman

N/A

2.00/1.55

N/A

68/-

144/-

222/-

270/-

293/-

300/195

304/-

310/-

5.7l Heat Perf.

N/A

2.00/1.55

N/A

169/107

241/146

273/163

281/169

286/172

5.7l Ported Heat Perf. SF1020

N/A

2.00/1.55

N/A

148/96

233/147

285/183

308/207

318/213

5.7l JM Cylinder Heads

N/A

2.00/1.55

73/53

149/124

212/167

249/183

262/190

265/190

5.7l Ported JM Cylinder Heads Stage 2

N/A

2.055/1.60

N/A

70/56

147/127

217/164

267/191

301/204

320/210

5.7l Dr Js Performance

N/A

2.00/1.55

N/A

71/46

148/105

219/133

251/156

261/165

263/167

5.7l Ported Dr Js Performance

N/A

2.00/1.55

N/A

74/52

156/115

237/153

278/186

298/204

315/218

5.7l Ported Patriot Perf. Stage I

180/57

2.00/1.55
3.905

68/51

144/116

221/161

272/185

290/197

300/207

5.7l Ported Patriot Perf. Stage II

180/57

2.02/1.57

70/58

146/118

226/164

280/188

302/198

309/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

5.7l Ported Frank Racing Econo

N/A

2.00/1.55

N/A

318/-

5.7l Indy

N/A

2.00/1.55

N/A

63/60

140/126

208/161

249/175

266/178

271/179

273/180

5.7l Ported Indy

184/57

2.00/1.55
4.30

70/63

148/114

230/163

270/195

303/210

322/218

327/221

5.7l Ported Hemi Shop / Heat Perf.

N/A

2.02/1.57
3.935
No Pipe

N/A

148/96

223/147

285/183

308/207

317/213

318/216

5.7l '04 CNC M2 Race Systems

183/-

2.00/1.55
4.03

N/A

141/108

218/165

282/202

312/215

324/222

333/226

337/228

5.7l Ported Sharadon Performance SP-2

N/A

2.02/1.60

N/A

66/53

144/120

222/204

285/218

311/218

324/222

5.7l Ported Steve-O

N/A

2.00/1.55

N/A

72/54

144/107

233/161

299/189

331/209

344/211

5.7l Ported MD Induction SF600

N/A

2.00/1.55

N/A

142/119

217/150

282/202

297/218

319/225

324/227

5.7l Ported MD Induction Race SF600

N/A

2.08/1.60

N/A

153/-

241/-

306/-

337/-

352/-

361/-

5.7l Ported TEA

N/A

2.00/1.55
4.00
Pipe

N/A

72/52

145/120

221/187

278/224

310/240

323/249

5.7l CNC RLD Performance

N/A

73/60

154/122

225/167

275/196

305/226

312/225

316/226

6.1l

N/A

2.08/1.60

N/A

75/63

155/132

230/178

276/186

295/187

299/189

301/189

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

6.1l Heat Perf.

N/A

2.08/1.60

N/A

174/111

246/160

290/179

310/179

318/179

6.1l Radshop SF600

N/A

2.08/1.60
4.06

N/A

75/57

155/123

230/168

276/184

299/186

304/187

306/187

6.1l Ported Radshop SF600

216/65

2.08/1.60
4.06

N/A

81/63

171/120

245/167

306/209

343/225

368/240

371/242

6.1l Ported Frank Racing Econo

N/A

2.08/1.60

N/A

360/-

6.1l Ported Indy

216/-

2.08/1.60

N/A

83/72

162/126

244/167

301/195

331/209

348/212

353/220

6.1l Ported Hemi Shop / Heat Perf. SF600

N/A

2.08/1.60

N/A

173/114

250/168

311/202

348/223

368/229

6.1l Ported MD Induction SF600

N/A

2.08/1.60

N/A

148/117

234/177

301/205

346/223

366/230

371/232

6.1l Ported MD Induction Race SF600

N/A

2.10/1.60

N/A

154/114

246/173

327/225

368/231

387/236

405/240

6.1l AirWolf Dr Js Performance

N/A

2.08/-

N/A

365/-

375/-

6.1l RLD Performance

188/58

2.08/1.60

71/62

158/132

228/175

278/200

299/213

307/217

307/220

6.1l CNC RLD Performance

270/85

2.20/1.61

84/52

171/100

250/133

310/179

355/215

377/246

382/257

383/262
@.750

Ported Flow tech Induction

N/A

2.10/1.60

N/A

75/59

148/116

231/157

301/206

339/220

355/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

6.4l

N/A

2.14/1.65

N/A

80/68

169/121

239/159

295/186

318/197

327/202

330/204

6.4l Ported PWR

N/A

2.14/1.65

N/A

82/60

166/112

242/161

308/197

350/222

370/236

379/245

Chrysler_Big_Block

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 250 Full Race Ported Brian Stroud Iron

N/A

2.14/1.81
4.50
Pipe

87/60

147/112

189/151

231/177

246/194

252/207

252/212

251/217

Chrysler 286 Stage I Ported Iron

N/A

2.08/-

N/A

134/-

190/-

227/-

257/-

280/-

289/-

Chrysler 346 Ported BJR Racing Iron

177/60

2.08/1.74
-
No Pipe

99/89

191/130

229/188

243/204

285/207

289/210

298/212

304/213

Chrysler 452 Iron

200/62

2.08/1.74

N/A

142/-

208/-

244/-

264/-

Chrysler 452 Iron

200/62

2.08/1.74

N/A

-/103

-/132

-/143

-/146

-/148

Chrysler 452 Iron

200/62

2.08/1.74

N/A

61/51

126/97

188/133

208/150

218/156

219/156

Chrysler 452 Bowl Blend Iron

200/62

2.08/1.74

N/A

65/55

155/106

202/144

232/170

243/182

245/188

Chrysler 452 IQ52 Iron

200/62

2.08/1.74
-
Pipe

N/A

61/55

130/108

188/152

213/172

227/178

230/181

Chrysler 452 Ported IQ52 Iron

N/A

2.14/1.81
-
Pipe

N/A

68/60

142/130

205/187

248/218

286/234

292/245

295/253

Chrysler 452 Alum

210/70

2.14/1.81

290/217

Chrysler 516 Iron

182/60

2.08/1.60

N/A

62/46

126/97

177/121

199/133

210/138

219/139

Chrysler 516 Iron

182/60

2.08/1.74

N/A

122/102

172/135

201/151

216/151

223/167

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 518 Max Wedge Iron

233/77

N/A

159/-

222/-

262/-

284/-

295/-

300/-

Chrysler 518M Bowl Blend Iron

N/A

2.14/1.81

N/A

145/113

202/152

237/174

253/190

268/200

277/206

Chrysler Max Wedge Bowl Blend Gasket Match BJR Racing Iron

230/-

2.08/1.88
-
No Pipe

N/A

87/89

175/135

225/199

291/221

307/240

307/253

307/264

309/267

Chrysler 902 IQ52 Iron

N/A

2.08/-

N/A

65/-

137/-

185/-

206/-

218/-76

221/-

Chrysler 902 Ported IQ52 Iron

N/A

85/-

164/-

219/-

257/-

293/-

309/-

318/-

Chrysler 906 MMM Iron

N/A

2.08/1.74

N/A

65/61

134/107

194/142

217/160

231/167

233/171

232/-

Chrysler 906 Iron

200/62

2.08/1.74

142/-

208/-

241/-

262/-

270/-

Chrysler 906 Iron

200/62

2.08/1.74

N/A

-/98

-/127

-/143

-/150

-/154

Chrysler 906 Iron

200/62

2.08/1.74
4.44

N/A

63/62

130/107

188/131

218/146

227/155

232/164

232/169

Chrysler 906 Iron

200/62

2.08/1.74

N/A

61/50

126/95

188/130

223/148

234/155

235/158

Chrysler 906 IQ52 Iron

N/A

2.08/1.74
-
Pipe

N/A

66/55

130/103

189/145

222/168

234/176

237/183

Chrysler 906 Ported IQ52 Iron

N/A

2.14/1.81

N/A

71/-

150/-

209/-

257/-

292/-

313/-

321/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 906 Stock Eliminator Modern Cylinder Head Iron

203/64

2.08/1.74
4.38
No Pipe

N/A

72/62

138/108

184/138

232/157

260/167

Chrysler 906 Dr Js Performance Iron

N/A

2.08/1.74

N/A

78/54

128/99

188/126

215/147

215/157

215/166

Chrysler 906 Ported Dr Js Performance Iron

N/A

2.08/1.74

N/A

67/57

138/108

201/140

243/168

262/184

265/194

270/200

Chrysler 906 Ported Muscle Motors Iron

N/A

2.14/1.81
4.375
No Pipe

N/A

153/128

222/165

268/200

304/215

313/223

309/223

Chrysler 906 Ported BJR Racing Iron

213/-

2.08/1.74
-
No Pipe

N/A

105/93

190/129

225/190

260/204

300/215

300/221

302/222

304/222

Chrysler 906 Bill Jones Iron

N/A

2.08/1.74
-
No Pipe

N/A

73/62

116/102

169/138

213/152

230/158

237/160

Chrysler 906 Mildly Ported Bill Jones Iron

N/A

2.08/1.74
-
No Pipe

N/A

73/66

138/115

202/149

242/180

246/193

244/199

Chrysler 906 Ported Bill Jones Iron

N/A

-
-
No Pipe

N/A

78/60

148/111

211/158

246/192

271/201

282/210

Chrysler P5153524 Alum

210/70

2.14/1.81

290/217

Chrysler Stage IV

N/A

2.08/1.75

N/A

248/177

Chrysler Stage V (P4529993) Iron

N/A

2.14/1.81

Chrysler P4876311 MMM Alum

N/A

2.14/1.81
-
No Pipe

63/50

128/87

176/121

224/146

252/160

263/164

266/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler P4876311 Ported MMM Alum

N/A

2.14/1.81
-
No Pipe

67/57

135/105

199/145

251/182

289/199

305/210

308/220

Chrysler Stage VI (P4529335) Alum

210/-

2.14/1.81

N/A

Chrysler Stage VI IQ52 Out of Box Alum

N/A

2.14/1.81

N/A

68/-

128/-

184/-

218/-

242/-

254/-

260/-

267/-

Chrysler Stage VI Minor Pocket Porting Gasket Matching Brian Stroud Alum

N/A

2.14/1.81
4.50
Pipe

N/A

73/57

148/117

205/160

253/195

286/232

277/260

287/276

288/292

Chrysler Stage VI Ported Porter Racing Heads Alum

N/A

2.14/1.81

N/A

68/51

146/116

211/165

258/208

288/236

321/251

331/256

Chrysler Stage VI Ported Porter Racing Heads Alum

215/-

2.14/1.81
-
No Pipe

N/A

67/56

142/104

204/148

253/185

287/214

307/234

310/246

Chrysler Stage VI Ported Porter Racing Heads Alum

215/-

2.14/1.81
-
2" Pipe

N/A

67/56

142/107

204/156

253/198

287/233

307/257

310/273

Chrysler Stage VI Ported Chapman

235/-

2.18/1.81
-
No Pipe

72/55

157/112

233/177

284/211

323/233

343/242

343/252

Chrysler Stage VI (P4876383) Ported Chapman

260/84

2.20/1.81
-
No Pipe

71/55

157/112

230/177

290/211

325/233

351/242

351/252

Chrysler Stage VI (P4876383) Ported Chapman Out of Box Porter Racing Heads

260/84

2.20/1.81

71/58

150/119

219/180

279/219

324/234

352/243

348/250

Chrysler Stage VI (P4876386) Ported Chapman Max Wedge Alum

285/84

2.25/1.81
-
No Pipe

77/55

151/112

220/177

283/211

330/233

364/242

375/252

Chrysler Stage VI BJR Racing Out of Box Alum

N/A

2.14/1.81
-
No Pipe

N/A

94/90

141/116

218/140

258/188

307/196

322/198

324/198

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler Stage VI Intake Bowl BJR Racing Alum

N/A

2.14/1.81
-
No Pipe

N/A

98/90

171/116

226/140

262/188

311/196

318/198

324/198

Chrysler Stage VI Ported BJR Racing Max Wedge Alum

N/A

2.14/1.81
-
No Pipe

N/A

93/88

183/134

239/192

309/226

340/251

362/256

373/261

393/262

Brodix B1 Org SF300 Alum

N/A

2.30/1.78
4.25
No Pipe

N/A

147/125

215/163

279/197

318/224

354/240

392/259

400/271

Brodix B1 MoPar Alum

300/-

2.30/1.78

151/116

220/174

277/216

325/227

364/227

396/227

Brodix B1 MoPar Ported ET Performance Alum

N/A

2.30/1.85
4.50

N/A

87/66

179/128

259/183

322/228

372/265

411/282

411/285

420/285

Brodix B1 BS Alum (OLD)

230/-

2.20/1.81

133/103

184/132

227/156

262/175

278/195

293/201

Brodix B1 BS Alum

230/-

2.20/1.81

145/123

204/155

249/184

284/206

294/222

295/233

Brodix STS B1 BS Alum

243/-

2.20/1.81

145/126

214/171

267/211

305/238

337/255

348/279

Brodix B1 BS Ported ET Performance Alum

N/A

2.20/1.81
4.375

N/A

77/58

148/113

198/147

253/182

299/204

332/224

334/239

338/251

342/260

Brodix B1 BS Ported ET Performance Alum

N/A

2.25/1.81
4.50

76/59

150/108

218/145

273/173

314/198

343/219

355/238

353/253

353/265

Brodix B1 Ported Koffel Alum

N/A

2.30/1.775

N/A

410/275

427/291

Brodix B1 Ported Modern Cylinder Head Alum

N/A

2.30/1.78
4.44

N/A

78/62

150/117

199/162

259/204

319/232

357/254

389/270

405/283

419/293

421/297

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix B1 MO Alum

300/-

2.30/1.78

151/116

220/174

277/216

325/227

364/227

396/227

Brodix B1 MC Alum

300/-

2.40/1.78

Brodix B1 MC Ported Koffel Alum

N/A

2.40/1.78
4.50

N/A

99/73

183/124

270/164

339/202

388/253

409/267

429/284

443/294

449/301

Brodix B1 MC Ported Modern Cylinder Head Alum

N/A

2.40/1.81
4.44

N/A

80/61

168/111

222/157

283/205

341/252

382/274

409/291

414/304

418/313

421/320

Brodix B1 PSO Ported Best Machine Alum

388/149

2.40/1.80
4.44

N/A

74/56

149/112

229/173

292/216

346/247

393/272

425/291

454/301

465/320

470/328

Brodix B1 PSO Ported Best Machine Alum

388/149

2.40/1.80
4.50

N/A

69/57

148/117

227/177

293/221

355/252

402/275

440/291

462/308

471/320

477/330

Bulldog Performance Stock Intake

N/A

2.19/1.81

78/67

146/126

211/170

260/195

297/213

293/226

294/236

Bulldog Performance Max Wedge Intake

N/A

2.19/1.81

74/67

147/126

213/170

257/195

307/213

308/226

307/236

Bulldog Performance Ported Brian Stroud

268.5/-

2.19/1.81
4.50
Pipe

N/A

80/53

153/112

209/157

260/188

285/218

305/245

318/265

324/282

Bulldog Performance Dvorak Ported MW

N/A

2.19/1.81

N/A

78/51

153/98

215/138

271/168

314/192

332/215

338/232

341/244

Edelbrock Performer RPM 60929, 60189 SF1020 Alum

210/70

2.14/1.81

84/88

79/70

145/126

209/160

254/188

278/206

290/217

292/223

Edelbrock Performer RPM 60929 Hughes Out of Box Alum

N/A

2.14/1.81

N/A

147/117

209/149

247/179

268/203

275/217

278/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Performer RPM 60929 Ported Hughes Alum

N/A

2.14/1.81

N/A

168/115

233/157

280/194

309/219

318/223

322/228

Edelbrock Performer RPM IQ52 Out of Box Alum

N/A

2.14/1.81

N/A

73/-

148/-

209/-

254/-

276/-

287/-

291/-

Edelbrock Performer RPM Ported IQ52 Alum

N/A

84/-

158/-

215/-

252/-

299/-

328/-

349/-

Edelbrock Performer RPM VJ Minor Bowl Port Clean Up Alum

210/70

2.14/1.81
4.375
No Pipe

N/A

64/51

136/102

202/146

250/179

272/196

287/205

288/213

Edelbrock Performer RPM CNC Chad Speier Alum

N/A

2.14/1.81
-
No Pipe

N/A

140/115

214/146

264/174

292/191

307/205

319/216

321/226

Edelbrock Performer RPM Ported MRL Performance

N/A

2.19/1.81
-
No Pipe

77/62

156/122

234/163

286/207

315/241

329/260

342/273

Edelbrock RPM Ported Alum

N/A

2.14/1.81
-
No Pipe

N/A

70/58

155/106

216/143

257/179

285/197

302/217

306/225

310/233

Edelbrock RPM Ported Hughes Stage 3 SF600 Alum

N/A

2.19/1.81

N/A

80/82

157/108

225/160

275/196

301/224

316/236

321/248

Edelbrock Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
No Pipe

N/A

75/75

151/126

219/166

267/197

306/218

324/231

328/239

328/245

Edelbrock Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
Pipe

N/A

75/78

151/131

219/175

267/212

306/240

324/257

328/268

328/276

Edelbrock RPM Xtreme Alum

225/100

2.20/1.81

Edelbrock Victor 77929 SF1020 Alum

280/100

2.20/1.81

85/63

150/118

211/160

261/188

298/207

322/219

325/226

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Hughes Out of Box Alum

280/100

2.20/1.81

69/67

146/118

220/166

264/200

308/225

323/242

319/260

Edelbrock Victor IQ52 Out of Box Alum

N/A

2.20/1.81

N/A

68/-

133/-

201/-

250/-

287/-

307/-

327/-

329/-

Edelbrock Victor 77929 CNC Chad Speier V3.3 I-45 E-45 Alum

285/100

2.25/1.81
4.50
1 7/8" Pipe

165/117

228/166

291/203

340/237

366/254

381/265

391/270

394/276

398/279

Edelbrock Victor CNC Chad Speier Alum

N/A

2.25/1.81
-
2" Pipe

N/A

154/114

219/166

282/209

334/241

363/264

378/280

390/288

395/290

402/290

Edelbrock Victor Flowtech - Steven Magnotti Intake 3/4" Longer than stock SF110 Alum

280/100

2.20/1.81
4.25

N/A

68/45

128/97

235/140

275/185

296/206

315/219

Edelbrock Victor Alum

280/110

2.20/1.81

N/A

136/112

207/155

255/192

288/216

308/225

326/226

Edelbrock Victor Ported Modern Cylinder Head Alum

N/A

2.20/1.81

N/A

81/67

160/120

223/157

285/187

328/208

358/225

369/236

372/246

Edelbrock Victor Max Wedge 77949 Intake Port Raised .65 Exhaust Port Raised .25 SF1020 Alum

290/100

2.20/1.81

85/63

150/118

211/160

261/189

298/207

322/219

325/226

Edelbrock Victor Max Wedge 77949 NPS Alum

N/A

2.20/1.81
-
No Pipe

N/A

67/57

129/106

191/151

246/183

280/205

300/220

321/225

329/227

Edelbrock Victor Max Wedge Brian Alum

N/A

2.20/1.81
4.35
2 1/8" Pipe

N/A

144/117

212/167

262/205

289/231

323/248

336/255

Edelbrock Victor Max Wedge Ported Brian Alum

N/A

2.20/1.81
4.35
2 1/8" Pipe

N/A

158/133

234/184

287/223

326/251

348/270

356/284

Edelbrock Victor Max Wedge Ported Speed-O-Motive Alum

N/A

2.20/1.81

N/A

157/99

220/162

270/190

310/220

340/240

365/258

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Max Wedge Ported Hughes Stage 3 Alum

313/84

2.20/1.81

N/A

78/86

165/107

231/161

287/201

326/234

341/255

358/264

Edelbrock Victor Max Wedge Ported Hughes Alum

333/-

2.20/1.81

N/A

171/101

235/165

293/217

327/249

352/271

372/285

Edelbrock Victor Max Wedge Ported Scott Brown Alum

N/A

2.25/1.81

N/A

84/69

162/121

229/160

292/191

335/216

371/232

383/244

390/251

Edelbrock Victor Max Wedge CNCPort Alum

N/A

2.25/1.81

N/A

165/117

228/166

291/203

340/237

366/253

381/265

391/270

393/276

440source Stealth Alum

212/72

2.14/1.81

290/220

440source Stealth Alum

212/72

2.14/1.81
4.375
No Pipe

N/A

64/49

140/104

208/140

239/165

256/178

265/188

267/196

440source Stealth Alum

212/72

2.14/1.81
-
No Pipe

N/A

65/57

135/108

191/140

227/159

242/173

254/183

261/191

440source Stealth Ported Alum

N/A

2.14/1.81

N/A

82/81

178/147

231/169

274/194

292/211

300/224

301/231

440source Stealth Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
No Pipe

N/A

73/71

150/128

216/166

267/198

304/218

322/231

324/239

325/246

440source Stealth Ported Modern Cylinder Head 440source Alum

N/A

2.14/1.81
4.38
2" Pipe

N/A

75/73

157/125

220/166

266/198

299/219

315/233

321/244

325/246

440source Stealth NPS Alum

N/A

2.14/1.81
-
No Pipe

N/A

65/57

133/107

196/140

240/164

259/179

265/188

267/191

440source Stealth Ported NPS Alum

N/A

2.14/1.81
-
No Pipe

N/A

74/58

133/108

195/138

249/163

278/182

290/195

292/206

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Super Stealth Ported IQ52 Alum

N/A

74/-

153/-

216/-

267/-

309/-

344/-

352/-

Indy 440 Torquer

260/-

298/218

Indy 440-SR

265/106

2.19/1.81

143/101

194/135

238/164

272/189

290/204

296/217

Indy 440-SR Mild Bowl Port Compu-Flow SF1020

N/A

2.19/1.81

N/A

69/59

134/108

195/146

244/176

279/200

285/220

292/230

Indy 440-SR Full Porting

295/122

2.19/1.81

N/A

150/118

216/166

265/205

310/238

337/254

352/263

Indy 440-SR Full Porting

295/122

2.19/1.81

N/A

162/121

216/166

274/205

324/239

351/260

355/263

Indy 440-SR Ported Scott Brown

296/-

2.19/1.81
4.375
2" Pipe

N/A

76/62

160/123

220/185

273/229

313/258

336/283

344/288

347/294

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.32
No Pipe

N/A

76/70

150/112

215/167

273/200

316/224

343/240

358/254

358/264

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.32
Pipe

N/A

76/71

150/128

215/178

273/212

316/239

343/260

358/275

358/287

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.50
No Pipe

N/A

80/72

155/125

225/173

285/206

328/234

358/255

371/266

374/277

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.50
Pipe

N/A

80/74

155/132

225/182

285/220

328/251

358/274

371/290

374/305

Indy 440-SR CNC M2 Race Systems

280/-

2.19/1.81
4.50

217/165

275/199

317/219

336/243

349/257

357/265

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-EZ

270/-

2.19/1.81
4.375

75/80

63/58

135/103

201/143

253/176

287/196

303/205

310/204

Indy 440-EZ

270/-

2.19/1.81

75/80

156/98

216/129

264/158

290/178

300/199

305/215

Indy 440-EZ Out of Box

265/-

2.19/1.81

N/A

71/54

121/97

190/137

240/170

280/194

306/209

310/222

Indy 440-EZ IQ52 Out of Box

N/A

2.19/1.81
-
No Pipe

N/A

69/59

131/103

190/135

239/165

283/189

307/205

313/212

321/-

Indy 440-EZ1

275/-

2.19/1.81

N/A

160/98

220/129

270/158

295/178

310/199

327/215

Indy 440-EZ CNC Bowls

295/78

2.19/1.81
4.375

75/80

65/55

141/103

210/138

266/178

308/203

333/218

344/228

Indy 440-EZ CNC

295/78

2.19/1.81
4.375

78/82

162/110

216/176

274/176

324/196

351/211

355/225

Indy 440-EZ CNC VJ Porter Racing Heads

295/78

2.19/1.81

78/82

75/55

155/109

223/158

279/196

319/224

346/239

350/251

Indy 440-EZ CNC

325/78

2.19/1.81

-/110

-/149

-/176

-/196

-/211

370/225

Indy 440-EZ Ported Modern Cylinder Heads MMM

308/-

N/A

152/-

217/-

266/-

305/-

337/-

351/-

Indy 440-1 Alum

310/110

2.19/1.81

N/A

72/58

139/112

204/159

265/196

308/226

317/244

326/257

Indy 440-1 Alum, 440-C Iron

310/110

2.19/1.81

152/101

203/135

254/164

288/189

296/204

312/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-1 Alum, 440-C Iron Full Porting

325/122

2.19/1.81

161/132

223/177

280/218

327/248

359/267

373/279

Indy 440-1 Alum, 440-C Iron Full Porting

345/122

2.19/1.81

229/167

288/201

339/230

363/250

378/277

380/285

Indy 440-C Iron Full Porting SM

N/A

2.19/1.81

N/A

215/160

280/193

325/225

344/240

362/267

362/275

Indy 440-C Mild Port MRL Performance

N/A

2.19/1.81
4.50
No Pipe

N/A

110/85

166/147

256/189

311/226

360/255

365/270

367/279

Indy 440-1 Out of Box 90's BJR Racing Alum

N/A

2.19/1.81
-
No Pipe

N/A

157/122

224/150

264/166

282/178

285/185

282/185

Indy 440-1 Ported Brian Alum

N/A

2.19/1.81

N/A

155/118

237/171

296/212

342/245

365/270

Indy 440-1 Ported Dwayne Alum

345/-

N/A

71/56

149/113

218/165

275/204

328/238

362/260

376/273

Indy 440-1 Ported Modern Cylinder Heads Alum

342/-

2.25/1.81
-
Pipe

N/A

78/67

160/127

231/176

278/210

315/243

329/270

349/285

362/297

Indy 440-1 Ported Modern Cylinder Heads Alum

350/-

2.25/1.81
4.38
No Pipe

N/A

82/71

162/120

238/166

295/200

331/228

360/251

380/267

391/-

Indy 440-1 Ported Modern Cylinder Heads Flowed Porter Racing Heads Alum

342/-

2.25/1.81
-
No Pipe

N/A

74/59

154/122

232/160

279/207

318/235

341/251

351/263

359/271

Indy 440-1 Ported R & J Alum

N/A

2.25/1.81

N/A

76/58

154/117

223/170

278/209

328/245

363/270

368/287

378/301

Indy 440-1 Ported R & J Modified Alum

365/-

2.30/1.78

N/A

80/55

164/123

236/172

284/205

342/239

374/-

390/312

396/324

400/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-1 Ported Scott Brown

N/A

2.25/1.81
4.375
2" Pipe

N/A

80/68

170/120

239/171

297/207

331/241

345/265

355/281

359/294

Indy 440-1 Ported

N/A

2.30/1.78

N/A

80/55

164/122

233/169

294/206

342/237

374/274

390/304

396/324

400/334

Indy 572-13 Full Porting

335/118

2.30/1.88

211/163

274/208

332/243

372/272

398/292

421/304

Indy 572-13 Billy J Ported Alum

365/-

2.30/-
4.50

N/A

68/-

124/-

174/-

236/-

307/-

357/-

376/-

388/-

Indy 572-13 Ported Modern Cylinder Head Alum

345/-

2.30/1.88
4.44

N/A

77/62

161/117

215/158

273/195

324/222

360/241

376/255

388/264

391/270

396/276

Indy 600-13

410/134

2.40/1.94

209/151

263/173

313/186

338/192

356/195

Indy 600-13 Full Porting

425/140

2.40/1.94

278/221

338/265

387/293

425/309

451/315

470/330

Indy 600-13X Full Porting

460/-

2.45/1.94

500/-

NRC Performance Alum

380/-

2.40/1.85
4.50
No Pipe

52-72

485/330

NRC Predator Alum

N/A

2.40/1.85
4.50
No Pipe

N/A

81/59

143/114

216/146

278/193

338/225

388/252

428/276

445/290

442/297

454/297

NRC Predator Bowl Blended Alum

N/A

2.40/-
4.25

N/A

165/-

240/-

307/-

360/-

402/-

430/-

453/-

470/-

NRC Hemi Style CNC Alum

450/-

2.45/1.85
4.530
No Pipe

N/A

73/63

132/103

191/140

253/183

315/217

366/251

418/278

459/308

493/333

520/342

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp Alum

265/78

2.25/1.88

71/54

146/104

208/150

251/187

274/213

287/230

296/239

295/246

Pro Comp Out of Box NPS Alum

N/A

2.25/1.88
4.49
No Pipe

N/A

69/54

135/107

197/149

249/179

275/197

291/211

304/217

312/217

Pro Comp CNC Alum

N/A

2.20/1.81

N/A

75/55

151/118

223/168

279/215

315/251

341/276

354/292

362/303

Pro Comp Ported Modern Cylinder Heads Alum

N/A

2.25/1.81
4.38
Pipe

N/A

77/73

161/112

224/158

265/191

306/210

338/228

365/238

378/251

386/254

World Torquer 440 Alum

260/106

2.19/1.81

World Pro 440 Alum

310/110

2.19/1.81

Zeeker Alum

N/A

2.14/1.81

N/A

137/119

193/147

249/186

306/228

346/252

375/264

370/269

Early HEMI

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler '54 331 Ported Smithberg Racing Iron

N/A

2.20/1.85
4.03

N/A

75/58

150/117

233/165

295/202

350/227

385/243

402/261

413/266

417/273

417/-

Chrysler '55 331 1556157 Gene Adams Iron

N/A

1.94/1.75

N/A

109/92

167/132

200/149

215/154

228/157

Chrysler '55 Ported Flowed IQ54 Iron

N/A

2.10/-

N/A

73/-

146/-

203/-

234/-

250/-

267/-

283/-

Chrysler '55 IQ54 Bk Valve VJ Iron

N/A

2.10/-

N/A

68/-

144/-

211/-

251/-

280/-

299/-

306/-

Chrysler '56 354 1619823 Gene Adams Iron

N/A

1.94/1.75

N/A

117/92

169/132

198/149

215/154

224/157

Chrysler '57 394 1735282 Gene Adams Iron

N/A

2.00/1.75

N/A

122/92

171/132

201/149

217/154

223/157

Chrysler Early Hemi Hot Heads Iron

N/A

2.00/1.75

N/A

121/97

178/128

212/145

225/159

233/160

Chrysler '55 331 Ported Bob McKay Iron

N/A

2.20/1.85

N/A

161/97

224/131

282/161

327/193

354/215

365/244

Hot Heads Early Hemi Alum

N/A

2.0625/1.80

100

125/121

191/159

241/176

259/185

274/191

Hot Heads Early Hemi Street Port Alum

N/A

2.0625/1.80

100

125/129

200/171

261/185

287/205

313/211

Hot Heads Early Hemi Race Port Alum

251/104

2.125/1.87
4.125

100

157/150

237/192

303/220

341/250

367/259

Hot Heads Early Hemi Race Port Max Alum

N/A

100

416/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Hot Heads Early Hemi Ported Smithberg Racing Alum

N/A

2.20/1.80
4.03
No Pipe

N/A

64/43

124/108

194/152

260/198

316/237

356/253

380/269

400/-

406/-

408/-
@ .95

Billet 392 Early Hemi CNC AJPE Alum

251/104

2.125/1.87
4.125

164/140

246/185

309/220

346/252

366/265

370/270

HEMI

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chrysler P/S Hemi Ported ET Performance Alum

451/-

2.55/1.80
4.625

N/A

76/46

159/119

243/172

337/212

423/249

492/302

538/322

547/339

550/343

563/345

Chrysler Std. Hemi Iron

N/A

2.25/1.94

168

355/213

Chrysler Street Hemi VJ Brian Iron

N/A

2.25/1.94
4.35

N/A

85/70

154/128

231/170

285/205

308/230

315/240

320/236

Chrysler MP Hemi Rich Iron

N/A

2.25/1.94

N/A

135/94

190/131

252/175

295/205

320/223

331/228

Chrysler Std. Hemi Barton SS

N/A

168

400/270

Chrysler Alum Hemi Ported Ray Barton

N/A

2.25/1.94

N/A

78/65

167/138

253/195

319/241

373/275

423/281

441/293

Chrysler Alum Hemi Ported Modern Cylinder Head

N/A

2.25/1.94
4.315

N/A

75/68

157/133

250/198

324/240

386/272

418/266

431/254

431/250

Chrysler Std. Hemi Mullin Ported Alum

N/A

390/-

Chrysler Std. Hemi Ported Alum

N/A

2.25/1.90

N/A

80/75

165/143

241/195

304/244

338/272

361/285

381/302

Chrysler BJR Racing Old TF 11/32 stem Iron

195/-

2.25/1.94
-
No Pipe

N/A

95/89

178/139

232/202

311/224

333/241

Chrysler D-5 Hemi Alum

N/A

2.30/1.94

N/A

367/237

AJPE PRO MOD Hemi SF1020 Alum

323/179

2.40/1.90
4.44
2.5" Pipe

162/162

273/236

353/304

412/385

445/413

462/425

474/435

488/436

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AJPE 5.3 BS PRO MOD Hemi SF1020 Alum

486/192

2.65/1.925
4.75
2.5" Pipe

N/A

161/141

276/219

369/289

459/394

534/421

583/437

602/447

615/452

624/456

AJPE 5.3 BS PRO MOD Hemi Darin Morgan Alum

N/A

2.725/2.10
-
No Pipe

N/A

180/125

262/182

344/228

434/274

527/319

601/352

659/374

693/393

708/403

725/413

735/418

739/422

AJPE A-Fuel Hemi SF1020 Alum

284/179

2.40/1.90
4.44
2.5" Pipe

165/160

272/230

349/306

416/385

450/413

463/425

473/431

478/435

AJPE TAD-TAFC Hemi SF1020 Alum

326/179

2.45/1.90
4.44
2.5" Pipe

159/162

269/236

355/304

425/385

465/413

484/425

494/435

503/436

AJPE TF-FC Nostalgia Hemi SF1020 Alum

256/110

2.375/1.925
4.17
2.5" Pipe

176

155/145

225/216

307/290

377/350

436/368

468/373

476/373

AJPE TF-FC Nostalgia Hemi SF1020 Alum

256/110

2.375/1.925
4.187
2.5" Pipe

176

165/155

272/251

349/321

416/362

450/379

463/388

473/395

AJPE Billet Stage II Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

176

152/138

214/203

293/270

364/335

440/387

494/390

518/391

AJPE Billet Stage III Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

176

149/145

221/198

303/260

397/324

475/373

534/397

559/410

AJPE Billet Stage IV Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

197.5

152/131

214/200

293/269

364/349

440/382

494/392

518/400

AJPE Billet Stage V Hemi Alum

N/A

2.45/1.925
4.19
2.75" Pipe

197.5

143/130

216/206

297/260

375/328

455/367

517/390

546/407

AJPE Billet Stage VI Hemi SF1020 Alum

333/149

2.45/1.925
4.187
2.75" Pipe

200

145/133

221/202

296/262

374/326

450/377

510/407

540/419

AJPE Billet Stage VII Hemi SF1020 Alum

340/149

2.47/1.925
4.187
2.75" Pipe

200

147/133

237/189

312/249

390/308

467/354

528/386

570/404

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Canfield Hemi Alum

200/100

2.30/1.94

169

Canfield Hemi Ported Modern Cylinder Heads Alum

200/100

2.25/1.94
4.32

169

80/71

177/132

266/190

345/228

398/257

426/250

430/247

434/245

Dart Hemi Alum

N/A

2.25/1.94
4.315

N/A

68/66

147/136

225/216

302/254

372/281

406/294

417/301

422/304

423/304

Edelbrock Victor Jr CNC Hemi Hughes Alum

245/105

2.32/1.94
-
Pipe

170

77/70

149/151

227/207

304/250

373/287

414/290

430/291

Edelbrock Hemi Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

79/66

165/136

263/197

333/238

396/262

431/261

451/261

459/261

Indy 426-1 Legends Meaux Racing SF600

N/A

2.25/1.94
4.28
No Pipe

N/A

131/133

201/188

267/222

324/235

356/230

371/226

380/223

384/222

Indy 426-1 Legends Meaux Racing redo SF600

N/A

2.25/1.94
4.28
No Pipe

N/A

126/115

197/173

263/217

328/253

371/267

390/260

399/256

402/253

404/250

Indy 426-1

243/103

2.25/1.94

170

147/137

212/173

274/191

320/195

338/198

351/198

Indy 426-1R

243/117

2.25/1.94

170

147/137

212/173

274/191

320/195

338/198

351/198

Indy 426-1 Full Porting

285/123

2.25/1.94

170

150/140

221/191

288/233

360/252

416/258

454/264

Indy 426-1RA Full Porting

251/117

2.40/1.94

170

220/167

295/212

355/257

380/285

420/322

464/331

Indy 426-1RA CNC

295/144

2.40/1.94

N/A

334/233

414/269

468/301

495/317

507/324

510/330

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Indy 426-1RA6 Full Porting

325/130

2.40/1.94

166

248/189

329/243

380/288

429/318

485/335

489/356

Indy 426-1RA6 CNC

335/151

2.40/1.94

345/250

429/294

490/331

515/349

532/360

535/365

Indy 426-Billet Full Porting

330/155

2.40/1.94

166

345/250

429/294

490/331

515/349

532/360

535/365

Indy 426-Billet Full Porting

360/155

2.40/1.94

166

282/205

345/258

405/304

458/345

490/369

515/390

Stage V Hemi Replacement Rich Alum

N/A

2.25/1.94

N/A

147/118

233/175

299/221

350/250

370/285

390/273

Stage V Hemi Replacement Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

78/64

164/141

264/178

339/215

384/245

411/264

430/276

443/287

Stage V Hemi Replacement Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

79/69

162/146

257/178

342/208

396/239

422/259

441/269

451/274

456/279

Stage V Hemi Replacement Ported For Hemis Only SF600 Alum

241/118

2.30/1.90
4.50
No Pipe

168

75/61

159/135

248/187

315/230

384/258

435/279

467/295

471/301

Stage V Hemi Replacement Ported Alum

N/A

2.375/1.90

N/A

175/137

239/188

314/242

380/273

434/296

463/304

482/318

Stage V Hemi Ported For Hemis Only Raised Exhaust Port 21.5 Deg Angle SF600 Alum

N/A

2.40/1.90
4.50
No Pipe

173

263/174

347/225

417/269

471/302

505/314

519/319

523/322

Stage V Hemi Alum

N/A

2.25/1.94
4.315

N/A

235/180

311/200

347/207

359/210

364/212

367/214

369/214

Stage V Hemi Al Alguire Alum

N/A

2.25/1.94

N/A

155/139

245/192

325/239

358/275

379/300

397/310

412/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Stage V Hemi Minor Clean Up Brian Alum

N/A

2.25/1.94
4.35

N/A

158/146

243/204

307/240

354/264

375/279

382/285

Stage V Hemi Ported Ray Barton Alum

N/A

-
4.50

N/A

550/-

Stage V Hemi Conversion Bowl Blend Alum

N/A

2.25/1.94

N/A

330/250

Stage V Hemi Conversion Street Port Alum

N/A

2.20/1.90

N/A

414/317

Stage V Hemi Millenium Ported Speed-O-Motive Alum

N/A

2.42/1.90

143

176/149

270/210

338/268

405/315

449/339

490/359

520/-

532/-

Stage V Hemi Millenium Ported Modern Cylinder Heads Alum

N/A

2.40/1.90
4.50
Pipe

N/A

86/68

171/144

268/185

351/228

412/272

466/298

502/319

522/327

537/331

Stage V Hemi Millenium Ported For Hemis Only Port SF600 Alum

N/A

2.45/1.95
-
No Pipe

N/A

77/51

154/125

237/184

320/220

399/256

474/302

528/334

558/343

581/349

588/-

Stage V Hemi M2000 Ported For Hemis Only Port SF600 Standard Alum

N/A

2.45/1.95
-
No Pipe

N/A

74/53

164/116

237/167

313/210

391/256

463/329

520/340

555/347

576/348

584/-

Stage V Hemi M2000 Ported For Hemis Only Port SF600 Custom Alum

N/A

2.55/1.95
-
No Pipe

N/A

66/53

148/127

228/190

309/228

387/266

470/309

540/336

595/358

631/365

654/370

Citroen

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

16V CNC Heads UK

N/A

1.133/1.077
100mm
No Pipe

N/A

33/-

73/62

108/-

131/116

150/-

164/125

172/-

174/128

175/-

175/129

16V Ported CNC Heads UK

N/A

1.133/1.077
100mm
No Pipe

N/A

35/-

72/66

105/-

137/134

163/-

176/145

182/-

189/157

194/-

198/158

Cummins

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.0787" (2mm)

.1575" (4mm)

.2362" (6mm)

.3150" (8mm)

.3937" (10mm)

.4724" (12mm)

.5512" (14mm)

Average

2V B Series Diesel

N/A

51.1/-

91.1/-

132.7/-

147/-

160.7/-

169.4/-

172/-

Dodge

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

Average

12V Diesel

N/A

145/153

12V Diesel Ported Stage 1 Piers Diesel Research

N/A

154/168

12V Diesel Ported Stage 2 Piers Diesel Research

N/A

163/183

12V Diesel Ported Stage 3 Piers Diesel Research

N/A

172/194

24V Diesel

N/A

161/173

24V Diesel Ported Stage 1 Piers Diesel Research

N/A

181/196

24V Diesel Ported Stage 2 Piers Diesel Research

N/A

181/205

Ferrari
Manufacturer Part Number	Port/Vol Int/Exh	Valve Size Int/Exh	Combust. Chamber Vol	.050	.100	.150	.200	.250	.300	.350	.400	.450	.500	.550	.600	.650	.700	Average
QV	N/A	-	N/A	-	60/-	-	108/-	134/-	144/-	149/-	154/-	158/-	-	-	-	-	-	-
250 GT 3 Port CAROBU Engineering LLC	N/A	1.42/1.235 - No Pipe	N/A	35/28	58/49	80/65	98/79	114/94	119/104	121/111	122/113	122/113	-	-	-	-	-	-
250 GT 2v Early CAROBU Engineering LLC	N/A	1.415/1.23 - No Pipe	N/A	26/21	56/49	84/67	104/88	130/102	147/112	150/118	150/123	151/126	151/129	-	-	-	-	-
250 GT 2v Late '62 6 Port CAROBU Engineering LLC	N/A	1.495/1.275 - No Pipe	N/A	24/20	47/41	67/57	89/68	109/79	123/92	124/103	125/103	126/107	125/111	125/113	-	-	-	-
308 QV	N/A	29mm/-	N/A	-	-	-	-	-	-	147/-	-	-	-	-	-	-	-	-
308 QV Ported	N/A	29mm/-	N/A	-	-	-	-	-	-	164/-	-	-	-	-	-	-	-	-
308 QV CAROBU Engineering LLC	N/A	1.14/1.025 3.53 No Pipe	N/A	39/28	75/57	116/90	147/118	166/137	178/147	180/152	180/155	181/157	182/165	182/166	183/166	-	-	-
308 GTB CAROBU Engineering LLC Ported	N/A	-	N/A	26/22	53/49	82/75	107/99	127/114	141/124	152/132	159/141	166/146	170/153	170/157	-	-	-	-
355 V8 Factory Modified Sabre Heads SF110	N/A	26.5mm/ 28.45mm 86mm No Pipe	N/A	44/28	87/58	127/89	164/114	192/128	204/138	213/147	219/152	224/156	227/157	229/162	-	-	-	-
355 V8 Ported Sabre Heads SF110	N/A	27.5mm/ 30mm 86mm No Pipe	N/A	48/36	95/76	139/112	178/140	203/162	218/174	228/183	232/189	235/192	238/196	-	-	-	-	-
360 GT CAROBU Engineering LLC	N/A	1.055/1.12 3.69 No Pipe	N/A	48/31	100/70	150/118	189/156	217/186	232/189	240/192	243/194	245/194	-	-	-	-	-	-
365 GTB/4	N/A	42mm/ 38mm	N/A	-	59/48-47	-	114/98-86	130/113-95	139/119-98	145/127-102	148/135-105	150/-	-	-	-	-	-	-
Manufacturer Part Number	Port/Vol Int/Exh	Valve Size Int/Exh	Combust. Chamber Vol	.050	.100	.150	.200	.250	.300	.350	.400	.450	.500	.550	.600	.650	.700	Average
365 GTB/4 CAROBU Engineering LLC	N/A	1.655/1.475 - No Pipe	N/A	25/22	54/36	88/62	120/79	146/98	158/109	162/119	164/128	165/132	165/141	-	-	-	-	-
365 GTB/4 CAROBU Engineering LLC Ported Intake	N/A	-	N/A	-	-	-	-	-	-	168/128	-	-	-	-	-	-	-	-
412i	N/A	-	N/A	-	-	-	-	-	-	127/-	-	-	-	-	-	-	-	-
412i CAROBU Engineering LLC Ported	N/A	-	N/A	-	59/47	-	114/87	130/-	139/-	145/-	148/-	150/-	150/-	-	-	-	-	-
512 BB CAROBU Engineering LLC	N/A	1.67/1.445 3.53 No Pipe	N/A	33/26	57/53	87/73	114/99	137/110	152/120	162/127	165/132	168/137	172/142	174/147	175/151	176/153	-/156	-
2167399 F17 DX Bill Jones Flowed CNC	N/A	1.337/1.147 3.59 No Pipe	N/A	43/38	87/68	129/119	164/148	185/155	200/166	209/173	214/176	-	-	-	-	-	-	-

Fiat

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.500

.600

Average

X1/9 1500 Burgess - Gollan SOHC

N/A

36mm/-

N/A

35/-

55/-

73/-

85/-

90/-

91/-

92/-

X1/9 1500 Ported Burgess - Gollan SOHC

N/A

36mm/-

N/A

40/-

63/-

85/-

98/-

107/-

112/-

115/-

X1/9 1500 Ported Steve C SOHC

N/A

37.5mm/-

N/A

43/-

73/-

91/-

110/-

115/-

120/-

125/-

X1/9 SOHC

N/A

37.2mm/-

N/A

38/-

55/-

70/-

87/-

95/-

105/-

109/-

X1/9 SOHC

N/A

37mm/-

N/A

108/-

Twin-Cam 8-Valve

N/A

44/-

93/-

126/-

133/-

139/-

Twin-Cam 8-Valve Ported

N/A

47/-

95/-

134/-

154/-

169/-

2.0 16v

N/A

34.5mm/ 28.5mm

N/A

223/-

_Fiat

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

Uno 1.3l Morgo Systems

N/A

36mm/ 33mm
-
Pipe

N/A

26/21

38/41

57/48

77/61

87/74

96/83

102/91

103/98

105/104

105/109

106/112

106/115

107/117

Uno 1.3l Ported Morgo Systems

N/A

36mm/ 33mm
-
Pipe

N/A

23/18

39/39

56/52

71/64

87/78

101/87

113/96

122/104

125/110

128/116

130/118

131/119

132/121

Ford

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford Y ECZ-G Iron

N/A

1.927/1.51

N/A

62/51

90/72

116/87

133/94

147/102

158/109

166/114

170/119

171/123

Ford Y ECZ-G Ported Ford-Y-Block Street Iron

N/A

1.94/1.60

N/A

64/57

96/75

122/94

148/113

165/126

181/132

193/143

207/150

215/152

Ford Y ECZ-G Ported Ford-Y-Block Performance Iron

N/A

2.02/1.60

N/A

69/64

100/89

129/108

156/129

177/141

196/154

212/161

218/169

227/177

Ford Y '57 G Ported Joe Craine Street / Strip Iron

N/A

2.00/1.60

N/A

61/55

124/109

171/133

205/160

217/166

226/171

234/180

Lincoln Y ECU-E R & R performance Iron

N/A

2.00/1.635
4.00

N/A

66/50

118/91

174/116

200/127

221/135

Lincoln Y ECU-E Ported R & R Performance Iron

N/A

2.055/1.66
4.00

N/A

70/59

143/119

198/139

230/173

242/192

255/203

Lincoln Y ECU-E Ported Abbot Stage 4 Iron

N/A

2.055/1.66

N/A

71/58

145/118

197/140

225/176

236/192

246/205

Lincoln Y ECU-E Ported Abbot Stage 5 Iron

199/-

2.055/1.66

72/59

146/120

204/142

229/178

239/195

254/209

Lincoln 430 575 R & R Performance Iron

N/A

2.14/1.78
4.25

N/A

69/50

128/97

177/132

209/153

234/179

247/192

251/196
@ .700

Lincoln 430 B9VE Street / Strip Port Les Schmader Iron

N/A

2.14/1.78

N/A

173/124

217/167

251/186

277/200

287/208

Lincoln 462 '67 C6VE Joe Craine Iron

N/A

2.19/1.88
-
No Pipe

N/A

249/180

Lincoln 462 '67 C6VE Ported Joe Craine Iron

N/A

2.19/1.88
-
No Pipe

N/A

66/63

143/127

218/190

278/199

292/-

298/201

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford 1.6 Pinto Ported

N/A

44mm/38mm

N/A

54/43

112/75

160/98

174/119

180/134

186/144

Ford 2.0 Pinto Early Carb Dave Baker

N/A

42mm/-

N/A

55/-

96/-

123/-

135/-

144/-

Ford 2.0 Pinto Injected Dave Baker

N/A

42mm/-

N/A

49/-

94/-

133/-

148/-

156/-

Ford 2.0 Pinto Ported Dave Baker

N/A

45.6mm/-

N/A

60/-

117/-

154/-

181/-

200/-

Ford 2.0 (SOHC English) Pinto Ported Kelford Cams

N/A

1.75/1.48

N/A

58/54

116/93

161/124

175/135

184/139

191/143

Ford Pinto CNC Heads UK

N/A

1.79/1.496
100mm
No Pipe

N/A

60/44

90/-

117/84

129/-

142/105

151/-

156/114

159/-

162/117

Ford Pinto Ported CNC Heads UK

N/A

1.79/1.496
100mm
No Pipe

N/A

64/48

97/-

127/90

155/-

178/117

198/-

201/131

207/-

212/142

Ford 2.5 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

74/60

114/-

148/144

172/-

184/176

192/-

199/174

201/-

199/175

Ford 2.5 Ported CNC Heads UK

N/A

1.22/1.062
100mm
No Pipe

N/A

71/71

108/-

145/163

179/-

200/209

215/-

225/215

229/-

232/219

Ford 2.0 Duratec CNC Heads UK

N/A

1.319/1.78
100mm
No Pipe

N/A

87/64

130/-

174/129

211/-

234/151

243/-

247/169

248/-

250/171

Ford 2.0 Duratec Ported CNC Heads UK

N/A

1.319/1.78
100mm
No Pipe

N/A

87/77

128/-

173/158

214/-

247/207

272/-

291/224

302/-

307/231

Ford '06 2.0-2.3 Duratec Sabre Heads SF110

N/A

35mm/30mm
-
No Pipe

N/A

85/66

125/99

163/128

193/144

211/151

219/155

224/158

225/160

226/161

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford '06 2.0-2.3 Duratec Ported Sabre Heads SF110

N/A

35mm/30mm
-
No Pipe

N/A

84/83

124/121

163/144

199/157

227/162

238/168

246/170

249/175

253/176

Ford '95 16v RS2000 Sabre Heads SF110

N/A

33.5mm/ 30mm
86mm
No Pipe

N/A

83/67

123/102

157/132

179/155

188/165

194/176

200/183

201/185

204/188

Ford '95 16v RS2000 Ported Sabre Heads SF110

N/A

33.5mm/ 30mm
86mm
No Pipe

N/A

79/75

119/111

163/144

196/164

217/184

274/192

230/199

232/202

233/206

Ford 2.3 Iron

N/A

1.74/1.50

N/A

58/42

108/81

141/112

149/132

149/142

Ford 2.3 DP Ported Brian Iron

N/A

1.74/1.50

N/A

54/48

115/90

156/113

179/129

187/137

Ford 2.3 SVO Ported

N/A

1.74/1.50

N/A

202/156

Ford 2.3 SVO Turbo

N/A

1.74/1.50

N/A

65/62

99/88

131/109

157/128

173/140

Ford 2.3 SVO Turbo Ported PowerHeads

N/A

1.89/1.59

N/A

73/72

115/103

153/126

189/151

214/175

Ford 2.3 Esslinger Alum

N/A

1.89/1.59

N/A

65/51

116/101

162/134

201/154

228/172

241/183

247/192

Ford 2.3 Esslinger D Alum

N/A

1.89/1.59
-
No Pipe

N/A

54/48

113/87

171/120

215/143

242/160

253/174

260/182

Ford 2.3 ARCA BOPORT Racing Heads

N/A

-
3.92

N/A

61/-

122/-

150/-

176/-

198/-

219/-

236/-

252/-

275/-

290/-

Ford 3.0 Essex v6

N/A

42/-

81/-

100/-

107/-

110/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford 3.0 Essex v6 Ported

N/A

46/-

95/-

131/-

152/-

161/-

Ford 4.0 Ported Super Six Motorsports Stage 2

N/A

1.81/1.54

N/A

206/160

Ford 4.0 Ported Super Six Motorsports Stage 2+

N/A

1.83/1.56

N/A

226/176

Ford 4.0 Ported Super Six Motorsports Stage 3

N/A

1.90/1.56

N/A

236/176

Ford ZTEK CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

85/64

129/-

171/129

198/-

208/151

216/-

222/170

225/-

227/171

Ford ZTEK Ported CNC Heads UK

N/A

35mm/ 30mm

N/A

85/69

129/-

172/153

206/-

233/192

247/-

256/203

262/-

265/211

Focus Zetec

N/A

32mm/ 28mm

N/A

79/68

144/126

175/148

184/155

Focus Zetec Alaniz Cyl Heads

N/A

33mm/ 29mm

N/A

74/68

144/114

173/132

182/139

186/139

Focus Zetec ZX3P 2.0l '00-04 Ported Alum

N/A

33mm/ 30mm

47.7

81/75

119/109

154/145

181/168

193/186

205/188

214/193

220/195

Focus Zetec Ported CFM Stage II

N/A

33mm/ 29mm

N/A

86/94

161/173

203/200

218/209

FocusSport Cosworth Zetec Focus

N/A

222/175

Ford Cosworth YBT CNC Heads UK

N/A

1.3/1.1
100mm
No Pipe

N/A

92/89

137/-

168/146

182/-

192/152

199/-

202/158

204/-

204/160

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford Cosworth YB1 CNC Heads UK

N/A

1.37/1.22
100mm
No Pipe

N/A

93/78

141/-

188/157

219/-

236/196

251/-

260/197

263/-

265/197

Ford Cosworth YB3BV CNC Heads UK

N/A

1.37/1.22
100mm
No Pipe

N/A

99/93

148/-

197/188

236/-

265/207

292/-

308/222

316/-

320/223

Ford Fiesta Puma 1.7 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

79/65

120/-

151/125

170/-

185/149

193/-

197/153

199/-

201/153

Ford Fiesta Puma 1.7 Ported CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

76/70

116/-

158/157

188/-

207/185

221/-

229/193

231/-

230/199

Ford CVH CNC Heads UK

N/A

1.6495/1.4845
100mm
No Pipe

N/A

51/46

75/-

98/92

116/-

133/119

144/-

152/125

156/-

160/128

Ford CVH Ported CNC Heads UK

N/A

1.6495/1.4845
100mm
No Pipe

N/A

58/48

88/-

117/99

144/-

164/129

178/-

189/159

197/-

201/174

Ford X2 Crossflow CNC Heads UK

N/A

1.501/1.238
3.16
No Pipe

N/A

48/35

72/-

95/64

109/-

120/80

122/-

124/87

124/-

126/89

Ford X2 Crossflow Ported CNC Heads UK

N/A

1.545/1.322
3.16
No Pipe

N/A

48/43

74/-

98/81

120/-

137/106

149/-

154/114

154/-

156/120

Ford XFLOW Ported CNC Heads UK

N/A

1.625/1.377
3.16
No Pipe

N/A

55/49

82/-

109/92

134/-

156/117

174/-

188/130

199/-

201/136

Ford I-6 US Iron

N/A

1.65/1.38

N/A

45/36

87/68

108/91

119/98

124/103

127/105

Ford I-6 OZ 250 Iron

N/A

1.75/1.50

N/A

63/36

101/68

133/91

155/98

156/103

156/105

Ford I-6 OZ 250 Ported Classic Inlines Iron

N/A

1.75/1.50

N/A

54/45

105/76

135/92

163/107

172/119

172/126

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford I-6 Classic Inlines Alum

N/A

1.84/1.50

N/A

52/40

99/79

143/111

180/144

201/164

210/174

Ford I-6 Classic Inlines Ported Alum

N/A

1.84/1.50

N/A

55/44

103/87

159/122

196/159

223/179

231/184

World S/R 2.9 v6 Iron

180/64

1.657/1.419

_Ford

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Ford Cosworth YB MORGO Systems

N/A

35mm/31mm
-
Pipe

N/A

66/-

124/-

150/-

163/-

171/-

173/-

175/-

176/-

Ford Cosworth YB Ported MORGO Systems for std cams

N/A

64/-

129/-

178/-

201/-

208/-

210/-

Ford Cosworth YB Ported MORGO Systems for 11 mm lift cams

N/A

72/-

143/-

204/-

235/-

248/-

252/-

255/-

257/-

Ford 1.6 OHC Pinto Ported /Andre' Norrback Epoxy

N/A

42mm/34mm
85mm
No Pipe

N/A

38/-

76/-

110/-

139/-

152/-

154/-

Ford OHC Pinto Ported /Andre' Norrback Rally

N/A

44.5mm/ 38mm
98mm
No Pipe

N/A

46/-

91/-

135/-

166/-

185/-

195/-

202/-

Ford OHC Pinto Ported /Andre' Norrback

N/A

46mm/ 38mm
98mm
No Pipe

N/A

48/40

89/74

136/100

174/119

202/130

215/142

206/144

206/146

Ford OHC Pinto Ported /Andre' Norrback

N/A

44mm/ 36mm
98mm
No Pipe

N/A

49/-

92/-

137/-

179/-

208/-

221/-

227/-

Ford 2.0 OHC Pinto Ported /Andre' Norrback Rally

N/A

46mm/36mm
98mm
No Pipe

N/A

52/-

98/-

144/-

188/-

215/-

233/-

236/-

Ford OHC Pinto Ported /Andre' Norrback

N/A

46mm/-

N/A

50/-

96/-

142/-

180/-

207/-

227/-

240/-

245/-

248/-

Pinto Ported /Andre' Norrback

N/A

52mm/ 40mm
98mm
No Pipe

N/A

53/48

101/80

148/109

189/136

229/160

254/176

279/186

295/195

312/202

Pinto Ported /Andre' Norrback

N/A

52mm/ 40mm
100mm
No Pipe

N/A

54/48

103/80

150/109

196/136

238/160

267/176

290/186

310/195

326/202

Ford CVH MORGO Systems

N/A

41.9mm/-

N/A

39/-

69/-

97/-

119/-

128/-

133/-

136/-

139/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Ford CVH Ported MORGO Systems

N/A

41.9mm/-

N/A

51/-

92/-

140/-

175/-

190/-

193/-

196/-

198/-

199/-

Ford RS 2000/2300 MORGO Systems

N/A

33.5mm/-

N/A

69/-

127/-

161/-

171/-

179/-

182/-

184/-

186/-

Ford RS 2000/2300 Ported MORGO Systems

N/A

33.5mm/-

N/A

63/-

126/-

177/-

204/-

222/-

228/-

233/-

236/-

V6 3.5 3.7 EcoBoost

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.150

.250

.350

.450

.550

.600

.650

.700

.800

.900

Average

Ford Super Six Motorsports With Stock Intake manifold

N/A

37mm/31mm

N/A

122/100

189/151

235/176

257/189

262/191

Ford Ported Super Six Motorsports With Ported Intake manifold

204/95

1.45/1.22

N/A

136/120

237/180

279/231

302/250

317/260

V6 3.8

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.900

Average

Ford 3.8 SC Redline Performance Mustangs

N/A

1.78/1.46

N/A

158/106

Ford 3.8 SC / Single Port

N/A

1.78/1.46

N/A

52/40

82/71

111/95

144/113

170/123

181/127

183/129

Ford 3.8 SC / Single Port Ported Coy Miller

N/A

1.85/1.625

N/A

56/50

113/103

164/144

199/187

216/201

225/208

226/206

Ford 3.8 SC Ported Stiegemeier Racing

N/A

1.875/1.60

N/A

131/120

181/166

217/206

229/212

232/215

Ford 3.8 SC Ported Super Six Motorsports Stage 2

N/A

1.78/1.45

N/A

203/154

Ford 3.8 SC Ported Super Six Motorsports Stage 2+

N/A

1.83/1.50

N/A

215/165

Ford 3.8 SC Ported Super Six Motorsports Stage 3 88-95

N/A

1.85/1.55

N/A

228/189

Ford 3.8 SC Ported Redline Performance Mustangs 88-95

N/A

1.84/1.60

N/A

210/153

Ford 3.8 SC Ported Super Six Motorsports Stage 3 96-98

N/A

1.90/1.56

N/A

240/181

Ford 3.8 SC Ported Redline Performance Mustangs 96-98

N/A

1.86/1.55

N/A

210/153

Ford 3.8 Single Port Ported Matt SF600

N/A

1.84/1.575
-
No Pipe

N/A

86/48

168/99

216/151

251/205

279/235

294/260

305/264

312/267

Ford 3.8 Split Port Ported Slvr 2000

N/A

1.94/1.55

N/A

69/59

164/104

198/142

239/173

268/201

294/224

319/231

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.900

Average

Ford 3.8 Split Port Ported "J"

N/A

1.94/1.55
-
No Pipe

N/A

91/60

162/112

213/145

242/175

270/204

298/231

Ford 3.8/4.2 Split Port Redline Performance Mustangs

N/A

1.86/1.46
-
No Pipe

N/A

63/46

199/122

Ford 3.8/4.2 Split Port Ported Redline Performance Mustangs

N/A

1.94/1.55
-
No Pipe

N/A

80/59

142/110

198/140

224/163

238/169

253/170

Ford 3.8/4.2 Ported Super Six Motorsports Stage 2

N/A

1.86/1.45

N/A

230/150

Ford 3.8/4.2 Ported Super Six Motorsports Stage 2+

N/A

1.90/1.50

N/A

240/160

Ford 3.8/4.2 Ported Super Six Motorsports Stage 3

N/A

1.94/1.56

N/A

260/170

Cleveland

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Boss 302 C4V Iron

N/A

2.19/1.67

N/A

210/154

246/169

274/178

Boss 302 C4V Mark Workman Iron

N/A

2.19/1.67

N/A

71/60

149/99

221/128

269/154

287/168

290/176

298/178

Ford 351 C2V Iron

N/A

2.03/1.67

N/A

200/143

199/163

Ford 351 C2V Iron

N/A

2.03/1.67

N/A

203/145

230/172

Ford 351 C4V D1ZE-GA Iron

244/137

2.19/1.71

284/154

Ford 351 C4V CHI Iron

N/A

2.19/1.71

N/A

64/38

113/78

166/112

209/135

245/155

267/160

275/-

Ford 351 C4V Iron

N/A

2.19/1.71

N/A

131/88

188/129

220/146

256/159

269/165

279/166

Ford 351 C4V D0AE Closed Chamber Mark Workman Iron

N/A

2.19/1.71

N/A

72/54

145/94

212/126

270/151

299/172

302/185

304/185

Ford 351 C4V Hans Ported Iron

N/A

2.19/1.71

N/A

82/45

160/65

232/145

294/176

Ford 351 C4V Glen Ported Iron

N/A

2.19/1.71

N/A

65/56

123/100

188/139

246/166

294/183

322/186

333/185

Ford 4V Closed Chamber Dr Js Performance Iron

N/A

2.19/1.70
-
Pipe

N/A

70/58

135/99

195/131

247/156

282/168

289/177

290/181

290/180

Ford 4V Closed Chamber Ported Dr Js Performance Iron

N/A

2.25/1.70
-
Pipe

N/A

82/68

153/110

224/149

291/180

326/198

340/211

355/225

364/228

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford 4V Closed Chamber Ported BH Performance Iron

N/A

-
-
No Pipe

N/A

70/64

131/107

198/145

248/169

300/192

322/200

330/-

Ford 4V Closed Chamber Ported Bullet Cylinder Heads Intake Tongues are fitted Iron

259/-

2.19/1.71

71/58

144/109

212/153

256/180

289/207

318/218

342/225

Ford Aussie 2V PowerHeads SF600 Iron

N/A

2.04/1.67

59/44

112/79

156/109

178/130

187/153

191/172

Ford Aussie 2V Ported PowerHeads SF600 Iron

N/A

2.19/1.71

79/75

154/109

206/156

231/180

244/200

253/209

Ford Aussie 2V Ported John Brides Iron

N/A

2.08/1.65

N/A

73/51

158/97

225/120

240/139

246/160

Ford C302 C302B

212/95

2.15/1.65

325/-

Ford C302B Stiegemeyer Racing SF600 Ported

217/112

2.19/1.65
4.155
No Pipe

N/A

81/73

157/131

223/180

266/210

306/223

331/228

325/-

Ford C302B SVO Ported Bullet Cylinder Heads Alum

N/A

2.19/1.65

N/A

75/77

144/128

210/164

260/196

298/216

326/227

348/235

Ford D302 D302B

212/95

2.15/1.65

325/-

Ford 351M/400 D5AE-A2A Matt SF1020 Iron

N/A

2.041/1.654

N/A

114/76

172/106

193/130

201/149

206/155

AFD 2V Alum

200/115

2.08/1.60

N/A

124/105

179/140

231/164

271/176

290/185

AFD 4V Closed Chamber SF300 Alum

235/115

2.15/1.65

N/A

70/55

147/108

215/151

269/185

298/205

316/216

330/221

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFD 4V Ported Dr Js Performance Alum

N/A

2.19/1.70
-
Pipe

N/A

78/52

150/108

216/146

277/174

318/207

331/224

348/236

362/243

Avenger XTC 351-C CNC Alum

265/90

2.25/1.74

60/70

75/65

145/111

217/138

281/165

328/214

344/233

350/247

360/260

Blue Thunder Low-Ex Alum

N/A

325/210

Blue Thunder Ported Alum

N/A

2.10/1.65

N/A

380/265

Blue Thunder Hi-Ex Alum

N/A

2.20/1.70

N/A

325/240

Blue Thunder Ported Hi-Ex Alum

N/A

2.20/1.71

N/A

395/285

Blue Thunder Stage 3 Ported Alum

220/-

2.20/1.71

N/A

400/300

Blue Thunder Comp Ported Alum

N/A

2.25/1.70
4.155

N/A

423/311

Blue Thunder Custom Performance Stage IV Ported Hi-Ex Alum

N/A

2.20/1.71

N/A

410/295

Blue Thunder Ported Dave Jack Alum

N/A

2.20/1.70
4.155
No Pipe

415/289

Blue Thunder Ported Chad Speier v3.10 Alum

N/A

2.15/1.71
4.155
No Pipe

N/A

141/104

214/144

272/186

328/217

369/243

382/249

388/254

391/258

395/263

Blue Thunder 3.6 Ported Chad Speier Alum

260/-

2.15/1.71
-
No Pipe

141/104

226/144

288/180

339/196

376/244

390/258

394/265

397/268

402/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

CHI 2V Alum

190/-

2.07/1.65

N/A

77/64

147/114

207/153

255/185

286/200

300/214

298/222

CHI 3V Alum

185/-

2.08/1.65

N/A

77/64

147/114

201/153

250/191

286/208

290/222

CHI 3V Alum

208/-

N/A

77/64

139/114

200/153

248/191

288/208

314/219

CHI 3V CNC Alum

218/-

2.15/1.65

N/A

64/52

124/94

179/130

234/159

282/193

314/217

334/230

350/243

CHI 3V Ported Kelford Cams Alum

218/-

2.15/1.65

N/A

70/57

140/112

197/168

254/194

305/209

336/224

341/234

CHI 3V Alum

225/-

2.15/1.65

N/A

70/64

140/114

205/153

259/191

295/208

322/219

340/228

CHI 3V Ported Bullet Cylinder Heads Alum

237/121

2.19/1.71

82/60

148/110

205/152

256/209

295/224

326/245

352/252

CHI 3V CNC Alum

260/-

N/A

78/60

150/111

210/150

270/188

315/208

340/223

360/260

370/230

CHI 3V CNC Darin Morgan (EMC) Alum

252.5/-

2.18/1.60

148/-

231/-

304/-

364/-

390/-

402/-

406/-

411/-

CHI 4V Alum

228/-

2.19/1.65

N/A

76/64

145/114

256/185

295/200

315/214

325/222

3V Ported P. I. Motorsorts Alum

213/-

2.19/1.71

149/102

210/137

257/162

298/185

317/203

321/221

CHI CNC Dr Js Performance I-50 Alum

N/A

2.18/-

N/A

68/-

138/-

228/-

288/-

321/-

363/-

386/-

394/-

408/-

416/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

CHI Kaase 2.85 C-400 Alum

N/A

2.19/1.65

69/45

153/111

225/163

285/210

337/233

373/245

396/253

400/253

CHI Kaase 3.1 C-400 Alum

N/A

2.19/1.65

68/45

149/111

228/163

294/210

348/233

381/245

397/253

400/253

Edelbrock Performer RPM 61629 SF1020 Alum

190/90

2.05/1.60

58/54

120/105

180/138

227/151

260/161

265/165

Edelbrock Performer RPM Alum

190/90

2.05/1.60

70/49

139/93

205/123

242/145

268/161

272/172

P I Motorsports 3V Alum

213/-

2.19/1.71

149/102

210/137

257/162

298/185

318/203

-/221

Pro Comp Alum

220/90

2.19/1.71

65/50

107/86

162/122

208/145

245/160

267/168

Pro Comp Ported Speed-O-Motive Alum

230/110

2.19/1.71

65/54

141/108

200/147

247/176

285/200

318/217

335/230

342/238

Pro Comp Ported Dr Js Performance I-52 Alum

265/-

2.20/1.70

79/-

161/-

231/-

295/-

339/-

373/-

395/-

404/265

406/-

409/-

Pro Comp Ported Chad Speier Alum

260/-

2.15/-

N/A

140/-

202/-

260/-

310/-

341/-

352/-

361/-

Pro Comp Ported Chad Speier V2.90 I-45 E-45 Alum

250/-

2.19/1.71

N/A

140/115

202/150

260/184

310/217

339/232

352/239

361/243

Trick Flow SF600 Alum

190/-

2.08/1.60

280/230

Trick Flow Bowl Blended SF600 Alum

190/112

2.08/1.60
4.03
1 7/8" Pipe

68/55

140/111

202/151

248/187

286/217

299/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow CNC TEA Alum

225/115

2.08/1.60
4.125
1 7/8" Pipe

68/55

146/115

223/162

282/204

313/231

336/240

339/244

Modular

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

2V '92-'98 / NPI

146/-

44.5mm/ 34mm

156/116

'96 Non P.I.

N/A

46/-

84/-

121/-

147/-

170/-

176/-

'96-'98 Non P.I. Ported Steen Racing

N/A

190/165

'96-'98 Non P.I. 4.6L Ported BH Performance

N/A

44.5mm/ 34mm
-
No Pipe

N/A

69/58

118/87

161/142

201/169

216/186

227/191

'96-'98 Non P.I. 4.6L Ported Renegade

N/A

44.5mm/ 34mm

N/A

67/62

120/97

165/137

193/152

210/164

222/174

'01 P.I. Alum

N/A

54/-

98/-

135/-

156/-

166/-

168/-

'99 & up P.I. Alum

159/-

44.5mm/ 36mm

163/150

'99 & up P.I. FPS Alum

N/A

44.5mm/ 36mm

N/A

54/55

102/91

139/121

159/142

169/142

165/150

176/153

'99 & up P.I. Ported FPS Alum

N/A

45.2mm/ 36.8mm

N/A

57/57

109/98

157/136

180/172

204/187

215/194

226/209

'99 & up P.I. Ported Steen Racing Stage 1 Alum

N/A

57/52

119/94

146/102

176/149

210/170

'99 & up P.I. Ported Steen Racing Stage 2 Alum

N/A

69/68

128/104

154/102

181/163

216/181

'99 & up P.I. Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

55/55

90/86

130/121

142/143

150/150

161/153

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

'99 & up P.I. Ported Stage 1 Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

60/60

100/90

142/127

169/150

187/164

190/172

'99 & up P.I. Ported Stage 2 Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

61/64

103/96

151/133

179/169

205/175

220/181

'99 & up P.I. 4.6L Ported BH Performance Alum

N/A

-
-
No Pipe

N/A

63/68

114/116

162/157

199/187

213/194

222/204

'99 GT 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

111/95

150/123

170/139

179/150

180/154

181/155

'99 GT Ported Stage III 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

125/101

165/129

191/147

204/160

209/164

212/166

4.6L 2V P.I. HRM Alum

N/A

44.5mm/36mm

N/A

54/55

107/91

139/121

159/137

169/142

175/150

4.6L 2V P.I. Ported HRM Alum

N/A

57/56

107/98

154/133

179/169

194/182

203/185

4.6L 2V P.I. PowerHeads SF600 Alum

N/A

63/65

112/101

148/132

172/150

178/161

180/162

182/162

4.6L 2V P.I. Performance C.A.P.A. Performance Alum

N/A

46.83mm/ 35.88mm

185/148

4.6L 2V P.I. Ported C.A.P.A. Performance Alum

N/A

45mm/ 36mm

225/205

4.6L 2V P.I. CNC Livernois Motorsports Stage II Alum

N/A

45mm/ 36mm

N/A

207/195

4.6L 2V P.I. CNC Livernois Motorsports Stage III Alum

N/A

45.5mm/ 37mm

N/A

225/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4.6L 2V P.I. CNC M2 Race Systems Alum

187/-

45.5mm/ 37mm
3.575

N/A

59/49

116/91

164/124

193/148

211/163

221/173

4.6L 2V P.I. Ported PowerHeads SF600 Alum

N/A

89/84

146/137

182/172

212/189

226/200

231/202

232/202

4.6L 2V P.I. Ported Patriot Performance Stage I Alum

N/A

1.752/1.417
3.552

N/A

60/52

107/94

152/130

185/160

209/178

211/185

214/192

4.6L 2V P.I. Ported Renegade

N/A

64/52

116/94

162/130

192/160

213/178

217/185

4.6L P.I. / 5.4L 2V Ported Patriot Performance Stage II SF1020 Alum

180/67

1.781/1.452
3.552

64/52

116/98

162/135

192/162

213/182

217/189

218/193

4.6L P.I. / 5.4L 2V Ported Patriot Performance Stage III Alum

180/67

1.84/1.452
3.552

68/53

121/100

169/138

203/165

219/186

227/196

233/201

4.6L P.I. / 5.4L 2V TEA Stage 2 Alum

N/A

1.78/1.45

N/A

60/52

114/100

161/138

192/170

212/194

219/199

221/202

4.6L P.I. / 5.4L 2V TEA Stage 3 Alum

N/A

1.84/1.45

N/A

56/55

112/100

160/139

202/167

226/188

235/196

243/204

5.4L 2V '99-04 LFP Stage II Alum

180/67

1.78/1.45

65/51

118/99

162/135

191/165

214/184

218/188

223/196

Lightning PI Ported collins SF600 Alum

N/A

44.5mm/ 36mm

N/A

60/60

101/101

144/134

179/156

207/178

220/191

Lightning PI Ported Smithberg Racing Alum

N/A

44.5mm/ 36mm
3.625
No Pipe

N/A

71/43

133/78

183/116

212/151

226/178

229/187

233/191

236/199

'00 F-150 Dale SF600 Alum

N/A

44.5mm/ 36mm

N/A

54/50

103/104

143/126

162/138

172/143

175/145

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

'00 F-150 Ported Dale SF600 Alum

N/A

44.5mm/ 36mm

N/A

61/57

111/96

153/130

186/164

212/180

218/184

220/190

Motorsport 2V SVO

N/A

215/147

Motorsport 2V SVO

173/-

46.8mm/ 35.8mm

193/140

Motorsport 2V SVO

173/-

46.8mm/ 35.8mm

206/142

Motorsport 2V SVO Mild Porting

200/-

46.8mm/ 35.8mm
3.50
No Pipe

60/48

125/91

182/131

215/162

235/184

242/190

243/192

Motorsport 2V SVO Ported Fox Lake

N/A

46.8mm/ 35.8mm
3.55

N/A

72/60

143/103

195/135

214/153

238/185

248/194

257/196

3V Stock Blow-By Racing Alum

N/A

33.8mm/ 37.5mm

N/A

77/53

147/98

200/120

216/138

223/148

225/154

3V Ported Blow-By Racing Alum

N/A

33.8mm/ 37.5mm

N/A

75/46

162/104

228/136

274/163

284/177

293/190

3V Stock PowerHeads SF600 Alum

N/A

33.8mm/ 37.5mm

N/A

74/71

146/119

198/145

217/170

225/190

225/193

225/196

3V Ported PowerHeads SF600 Alum

N/A

33.8mm/ 37.5mm

N/A

84/81

160/128

212/169

247/195

265/212

270/218

271/226

3V Stock Fox Lake MMFF Alum

N/A

33.8mm/ 37.5
3.55

N/A

220/165

228/175

3V Ported Fox Lake MMFF Alum

N/A

33.8mm/ 37.5mm
3.55

N/A

256/188

269/203

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

3V Ported Fox Lake Alum

N/A

33.8mm/ 37.5mm
3.55

N/A

221/142

249/175

264/190

272/204

3V CNC M2 Race Systems Alum

N/A

34mm/ 37.5mm
3.575

N/A

85/47

177/98

233/129

260/153

273/172

283/189

3V Ported Sutton High Performance Alum

N/A

33.8mm/ 37.5mm

N/A

223/143

264/173

288/189

298/198

3V Ported TEA Stage 1 Alum

N/A

33.8mm/ 37.5mm
-
Pipe

N/A

84/51

159/108

221/153

264/182

279/209

283/216

287/223

3V Ported PSI Performance Alum

N/A

33.8mm/ 38.5mm

N/A

129/91

172/119

235/154

248/179

263/198

272/201

281/205

3V Stock Livernois Motorsports Alum

N/A

33.8mm/ 37.5mm

N/A

84/54

145/100

208/125

217/153

227/153

227/158

3V CNC Livernois Motorsports Stage II Alum

N/A

34mm/ 37.5mm

N/A

280/185

3V CNC Livernois Motorsports Alum

N/A

35mm/ 38.5mm

N/A

99/47

188/106

237/141

259/162

272/176

282/186

3V CNC Livernois Motorsports Stage III Alum

N/A

35mm/ 38.5mm
3.552

N/A

131/65

219/126

268/166

285/186

291/205

301/215

3V CNC FORD Motorsports Alum

N/A

35mm/ 38.5mm

N/A

295/200

3V '05 Stock 5.0 S/F Alum

N/A

33.8mm/ 37.5mm

N/A

146/107

208/130

229/147

235/159

237/163

238/165

4V FR500 Alum

N/A

37mm/ 30mm

N/A

233/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4V FR500 CNC M2 Race Systems Alum

N/A

37mm/ 30mm
3.575

N/A

99/84

182/135

251/181

294/209

318/226

330/234

4V '93-'98 "B" Stock Gamrace Alum

N/A

37mm/30mm
3.57

N/A

144/106

194/126

218/145

234/146

230/152

4V '93-'98 "B" Sportman CNC Gamrace Alum

N/A

37mm/30mm
3.57

N/A

166/113

230/140

262/160

280/165

277/170

4V '93-'98 "B" Stage 2 CNC Gamrace Alum

N/A

37mm/30mm
3.57

N/A

166/119

230/153

262/189

280/204

277/215

4V '97 Cobra 5.0 S/F Alum

N/A

37mm/ 30mm

N/A

168/141

224/162

246/167

249/168

4V '99 Cobra 5.0 S/F Alum

N/A

37mm/ 30mm

N/A

170/140

220/160

237/169

243/169

4V Cobra Stock Alum

N/A

37mm/ 30mm

N/A

260/201

4V Cobra 92-98 "B" 99-02 "C" Ported Fox Lake Alum

N/A

37mm/ 30mm
3.55

N/A

241/219

293/249

315/264

324/270

4V Cobra Ported Fox Lake Stage 3 Alum

N/A

350/300

4V Cobra M2 Race Systems Alum

N/A

37mm/ 30mm
3.575

N/A

89/67

168/121

224/160

253/179

267/182

275/185

280/186

4V Cobra CNC M2 Race Systems Alum

219/-

37mm/ 30mm
3.575

N/A

89/75

168/140

234/181

284/210

304/224

321/231

325/236

4V Cobra Stage I Ported TMS Alum

N/A

290/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4V Cobra Stage II Ported TMS Alum

N/A

306/202

4V Cobra '96-'98 Ported TEA Alum

N/A

87/76

155/153

228/214

283/248

305/269

4V Cobra '03-'up Ported TEA Alum

N/A

89/73

174/149

255/209

300/243

324/263

4V Navigator Ported Fox Lake SF600 Alum

N/A

-
3.55
No Pipe

N/A

94/88

182/158

247/204

279/225

304/236

310/238

314/242

4V '03 5.0 S/F Alum

N/A

37mm/ 30mm
3.57

N/A

95/74

161/126

226/159

259/171

266/175

268/176

4.6L 4V '96-'98 Ported Stage 1 C.A.P.A. Performance Alum

N/A

272/172

4.6L 4V '96-'98 Ported Stage 2 C.A.P.A. Performance Alum

N/A

287/194

4.6L 4V '96-'98 Ported Full C.A.P.A. Performance Alum

N/A

304/241

4.6L 4V '99-'01 Ported Stage 1 C.A.P.A. Performance Alum

N/A

257/185

4.6L 4V '99-'01 Ported Stage 2 C.A.P.A. Performance Alum

N/A

273/195

4.6L 4V '99-'01 Ported Full C.A.P.A. Performance Alum

N/A

288/237

4.6L 4V '99-up PowerHeads SF600 Alum

N/A

37mm/ 30mm

N/A

93/78

170/127

221/167

245/184

257/189

258/193

258/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4.6L 4V '99-up Ported PowerHeads SF600 Alum

N/A

95/85

173/157

243/195

290/209

305/217

307/220

307/224

4.6L 4V '99-up Ported TEA Alum

N/A

95/85

178/165

245/225

283/247

307/255

313/259

320/260

4.6L 4V Ported Patriot Performance Stage 1.5 Alum

N/A

-
3.552

N/A

97/75

178/136

245/187

289/214

308/225

313/230

316/233

5.0L 4V '11 Alum

193/-

37mm/ 31mm

N/A

5.0L 4V '11- Ported TEA Alum

N/A

37mm/ 31mm
3.70
Pipe

N/A

91/82

165/160

228/206

283/219

305/228

318/231

Trick Flow Twisted Wedge 2V SF600 Alum

185/93

1.84/1.45

38/42

56/43

122/96

173/135

213/164

233/175

241/177

236/180

Trick Flow Twisted Wedge 2V SF600 Alum

185/93

1.84/1.45
3.564

58/46

124/99

176/141

218/170

241/175

242/183

Trick Flow Twisted Wedge 2V Alum

185/93

1.84/1.45
3.564
1 3/4" Pipe

N/A

58/49

125/101

175/143

224/174

250/179

252/188

Trick Flow Twisted Wedge 2V CNC Alum

195/95

1.90/1.47

Trick Flow Twisted Wedge 2V Ported HRM Alum

N/A

1.84/1.45
3.564

N/A

71/60

139/108

195/151

238/183

268/197

291/206

Trick Flow Twisted Wedge 2V CNC Chamber TFS-51910001-CNC SF600 Alum

185/93

1.84/1.45
3.562
1 3/4" Pipe

38/42

59/57

131/107

188/151

230/188

250/204

257/211

Trick Flow Twisted Wedge 2V Fox Lake SF600 Alum

N/A

1.84/1.45
3.552

N/A

66/60

121/102

185/141

223/179

239/197

241/201

242/203

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

Trick Flow Twisted Wedge 2V Ported Fox Lake SF600 Alum

N/A

1.84/1.45
3.552

N/A

67/62

124/106

189/143

227/190

255/205

263/209

271/211

Trick Flow Twisted Wedge 2V Ported Fox Lake MMFF Alum

N/A

1.84/1.45
3.552

N/A

69/62

130/118

189/158

235/195

259/189

269/195

Windsor

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford 289 Iron

N/A

1.78/1.45

N/A

165/107

Ford 289 HiPo Iron

N/A

1.78/1.45

53.5

139/98

161/113

170/121

177/125

Ford 289-302-5.0 PowerHeads SF600 Iron

N/A

1.78/1.45

N/A

52/39

95/74

132/96

141/104

154/107

152/107

Ford 289-302-5.0 Ported PowerHeads SF600 Iron

N/A

1.94/1.60

N/A

64/62

122/109

174/150

202/169

215/175

219/180

Ford 302 '73 CCM Iron

N/A

1.78/1.45
4.03
1 3/4" Pipe

56/43

107/79

141/110

155/120

163/125

167/129

Ford 302 E7TE Iron

127/44

1.78/1.45

N/A

52/39

95/74

132/98

143/104

159/109

Ford 302 E7TE Iron CCM

127/44

1.78/1.46

N/A

59/39

109/73

142/100

148/110

150/113

Ford 302 E7TE Iron MMFF

N/A

1.78/1.46

N/A

55/40

110/75

142/101

160/110

157/112

155/111

Ford 302 E7TE Ported Thumper Iron

N/A

1.78/1.46

N/A

73/54

121/104

178/135

197/150

219/155

220/160

Ford 302 E7TE Ported PowerHeads SF600 Iron

N/A

1.90/1.60

N/A

63/62

124/109

189/150

213/169

217/174

Ford 302 E7TE Ported McCoy Iron

N/A

240/166

Ford GT-40 E7TZ

145/55

1.84/1.54

64/52

111/98

159/125

183/129

187/129

192/129

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford GT-40P E7TZ CCM

145/55

1.85/1.46

58/45

121/88

159/112

186/125

190/127

195/128

Ford GT-40X Iron CCM

176/-

1.94/1.54

57/49

110/89

162/123

193/150

215/155

230/155

Ford GT-40X Ported Iron

N/A

1.94/1.54

N/A

63/50

125/99

184/145

224/170

245/178

254/174

Ford GT-40X X302 X306 X307 Alum

178/62

1.94/1.54

64/58

239/170

Ford GT-40 Y303 Alum

166/54

1.94/1.54

64/52

114/98

166/128

199/136

212/134

217/-

Ford GT-40 X303 X305 Alum

178/62

1.94/1.54

64/58

64/60

130/112

184/143

220/163

238/173

249/175

Ford GT-40 Y302 Alum

160/53

1.94/1.54

N/A

Ford GT-40 Y302 Y303 (SVO) Ported Gamrace Alum

163/-

1.94/1.54

135/110

182/145

225/166

258/182

274/189

270/193

Ford Z304 Alum

204/85

2.02/1.60

65/56

135/113

199/172

245/200

272/213

Ford Z304 Westech Alum

200/-

2.02/1.60

61/50

132/95

187/131

234/160

252/174

259/180

262/180

Ford Z304 CNC Alum

N/A

2.02/1.60

69/61

149/110

225/159

278/192

314/221

Ford Z304 Ported ET Performance Alum

226/-

2.08/1.60
4.03

76/54

147/108

221/154

273/197

300/214

314/223

326/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford Z304 Ported Gamrace Alum

220/-

2.08/1.60

205/150

260/193

295/220

312/229

318/238

Ford Z304 Ported Gamrace Alum

230/-

2.08/1.60

203/150

266/193

295/220

318/229

335/238

Ford 351 Iron

N/A

1.84/1.54

177/142

Ford 351 Iron

N/A

1.84/1.54

152/107

171/113

181/115

189/115

Ford 351 PowerHeads SF600 Iron

N/A

1.84/1.54

N/A

56/39

99/74

136/96

151/104

163/107

166/109

Ford 351 Ported PowerHeads SF600 Iron

N/A

1.94/1.60

N/A

69/62

128/109

182/150

206/169

225/175

232/180

Ford 351 Ported Darrell Iron

160/-

2.00/1.585
-
1 3/4" Pipe

125/108

179/144

218/170

246/181

249/181

Ford 351 DOOE Iron

N/A

1.90/1.60
4.00
No Pipe

69/45

111/80

153/105

183/109

183/111

183/113

Ford N351 Iron

195/67

2.02/1.60
4.04
No Pipe

141/97

160/127

212/142

232/161

244/169

255/172

Ford N351 Ported Stage 2 Beasley Engineering Iron

206/73

2.02/1.60
4.04
No Pipe

137/94

165/133

221/167

257/208

278/221

296/236

Ford N351 Ported Full Beasley Engineering Iron

219/78

2.08/1.60
4.04
No Pipe

87/59

155/103

203/143

251/208

287/226

305/246

309/254

Ford N351 CNC M2 Race Systems Iron

219/-

2.08/1.60

198/122

241/175

268/208

279/220

292/227

303/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford N351 Tri-Mark Iron

194/-

2.02/1.60

N/A

61/60

120/107

173/126

210/140

230/158

235/169

236/176

Ford N351 Ported Tri-Mark Stealth Iron

200/-

2.02/1.60

N/A

70/59

145/112

200/147

230/177

247/191

257/199

263/204

Ford N351 Stock Bill Jones BUT 2.05 Iron

N/A

2.05/1.60
4.03
No Pipe

N/A

64/50

119/98

160/125

195/137

223/149

233/161

Ford N351 Ported Bill Jones Iron

N/A

2.05/1.60
4.03
No Pipe

N/A

68/54

128/102

183/154

221/181

253/195

276/206

Ford N352 Tri-Mark Iron

185/-

2.02/1.60

N/A

61/60

120/107

173/126

210/140

230/158

235/169

236/176

Ford N352 Ported Tri-Mark Stealth Iron

197/-

2.02/1.60

N/A

70/59

135/112

197/147

223/177

242/191

257/199

263/204

Ford N352 Ported Tri-Mark Super Stealth Iron

N/A

2.02/1.60

N/A

69/55

149/112

200/149

231/177

255/197

271/208

280/215

Ford SC1 Ported Bullet Cylinder Heads Small Port Volume

N/A

2.18/1.60

N/A

77/60

160/109

221/155

278/190

321/226

345/252

370/261

380/266

Ford SC1 Ported ET Performance

272/-

2.18/1.60
4.155

68/56

151/114

225/166

291/205

343/223

371/232

382/240

389/246

Ford SC1 Head Circle Ported HRD

N/A

2.18/1.625

N/A

157/111

232/176

297/224

342/254

383/269

398/278

413/286

Ford SC1 Bennett Ported

N/A

2.20/1.60

N/A

420/290

Ford SC1 CNC M2 Race Systems

273/-

2.18/1.60
4.155

58/50

129/105

205/155

276/209

328/237

374/249

405/253

412/261

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford 233 Raised Seat Ported Chapman

233/-

2.15/1.60
-
No Pipe

71/53

149/114

236/152

282/190

327/228

358/238

360/251

364/255

Ford Yates/C3L/C3

210/119

2.10/1.60

N/A

Ford Yates/C3L Ported SF600

N/A

2.10/1.60
4.07
No Pipe

N/A

73/54

148/112

234/152

289/206

325/225

340/243

348/258

Ford Yates/C3L 215 Ported Chapman

215/-

2.125/1.60
-
No Pipe

70/53

146/114

228/152

291/190

332/228

347/238

347/251

Ford Yates/C3L 221 Ported Chapman

221/-

2.10/1.60
-
No Pipe

72/53

145/110

215/162

285/202

313/228

328/239

340/247

Ford Yates/C3L/C3 233 Ported Chapman

233/-

2.10/1.60
-
No Pipe

50-60

75/53

143/110

220/162

286/202

310/228

328/239

337/247

Ford Yates/C3 239 Ported Alum

239/-

2.10/1.60
4.06
2 1/4" Pipe

N/A

73/54

146/104

217/145

269/179

306/206

317/229

311/244

318/268

Ford Yates/C3L Ported

241/-

2.15/1.585

150/102

226/151

286/200

334/226

361/240

366/245

Ford Yates/C3L Ported Automotive Specialists

242/-

2.10/1.60

154/119

226/164

276/198

322/220

341/229

345/236

Ford Yates/C3 Ported Greg Good

N/A

2.125/1.625
-
No Pipe

N/A

243/172

300/212

331/236

362/252

374/260

381/264

Ford Yates/C3 Cup Head Ported HRD

N/A

2.16/1.58

N/A

145/114

224/171

291/232

339/252

364/265

379/272

Ford Yates/C3 Cup Head

N/A

362/262

383/278

388/286

391/296

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford C35

210/119

2.10/1.60

N/A

Ford C35 Head Ported HRD

N/A

2.125/1.60

N/A

150/115

233/153

302/225

339/250

357/266

366/274

Ford C3H Ported

N/A

2.20/1.60

N/A

400/275

Ford D3 Head Circle Ported HRD

N/A

2.16/1.61

N/A

161/111

246/161

315/215

346/246

381/261

395/270

404/276

Ford D3 Head Circle Ported HRD

N/A

2.18/1.625

N/A

149/120

243/169

310/229

355/250

386/258

401/256

410/273

Ford D3 Head Drag Ported HRD

285/-

2.20/1.61

N/A

149/115

238/169

311/226

350/251

383/265

405/272

418/285

430/291

Ford D3 Head Ported MBE

308/162

2.20/1.60
-
No Pipe

N/A

140/102

224/146

305/195

370/228

412/259

442/270

449/275

451/278

453/-

Ford D3 Head Ported MBE I-55 E-55 SF1020

324/162

2.225/1.57
4.155
No Pipe

N/A

133/99

221/147

301/192

364/220

406/240

438/261

444/270

442/275

450/280

Ford D3 Head Ported

280/150

2.18/1.625

154/101

230/140

301/206

351/237

381/253

393/263

400/272

Ford D3 Head Ported

N/A

2.20/1.60

N/A

123/140

196/140

267/187

331/220

368/245

393/263

400/272

413/281

417/287

AFR 165 Street SF600 Alum

165/69

1.90/1.60
4.06
1 3/4" Pipe

58-64

123/118

186/153

225/178

243/185

250/191

AFR 165 Street CCM Alum

165/-

1.90/1.60

N/A

60/51

123/108

176/144

210/174

232/184

232/188

235/189

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 165 #1402 Weingartner Racing Alum

N/A

1.90/1.60
4.155

N/A

57/54

113/112

171/151

216/180

236/191

238/195

244/197

247/-

AFR 165 Street Nitrous Exhaust SF600 Alum

165/69

1.90/1.60
4.06
1 3/4" Pipe

58-64

123/129

186/171

225/199

243/211

250/218

AFR 165 Comp SF600 Alum

N/A

1.90/1.60
4.06
1 3/4" Pipe

129/121

186/155

228/192

242/207

254/215

AFR 165 CNC SF600 Alum

165/-

1.90/1.60
4.06
1 3/4" Pipe

55-60

135/122

200/163

240/192

251/208

260/215

AFR 165 Ported CCM Alum

N/A

1.90/1.60
4.03
1 3/4" Pipe

N/A

59/57

127/114

189/164

225/194

245/203

252/209

AFR 185 Street/Strip SF600 Alum

185/69

2.02/1.60
4.06
1 3/4" Pipe

58-64

129/118

189/153

234/178

267/185

277/191

AFR 185 Street/Strip Nitrous Exhaust SF600 Alum

185/69

2.02/1.60
4.06
1 3/4" Pipe

58-64

129/129

189/171

234/199

267/211

277/218

AFR 185 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

N/A

136/125

200/180

245/211

272/225

287/231

AFR 185 Comp Ported CCM Alum

N/A

2.02/1.60
4.03
1 3/4" Pipe

N/A

66/59

148/113

202/162

242/199

274/215

286/222

296/227

AFR 185 CNC SF600 Alum

185/70

2.02/1.60
4.06
1 3/4" Pipe

N/A

142/118

200/164

255/200

285/210

297/215

AFR 185 Street Ported ET Performance Alum

N/A

2.02/1.60
4.03

78/56

152/123

214/155

252/183

266/196

284/201

289/204

AFR 190 Ported SF600 Alum

190/-

2.02/1.60
4.060
1 3/4" Pipe

N/A

152/121

211/158

257/193

290/214

310/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 195 CNC SF600 Alum

195/70

2.02/1.60
4.06
1 3/4" Pipe

N/A

152/126

208/171

260/207

287/222

308/231

AFR 205 Race SF600 Alum

205/70

2.08/1.60
4.125
1 7/8" Pipe

141/125

201/180

251/211

291/225

306/231

310/235

AFR 205 Race Nitrous Exhaust SF600 Alum

205/70

2.08/1.60
4.125
1 7/8" Pipe

141/121

201/173

251/208

291/231

306/240

310/244

AFR 205 Ported ET Performance Alum

205/-

2.08/1.60
4.03

76/57

145/116

205/156

259/185

296/200

307/207

308/210

316/214

AFR 205 Race SF600 Alum

205/70

2.08/1.60
4.06
1 3/4" Pipe

149/126

205/170

260/210

291/227

315/231

327/234

AFR 205 Race Nitrous Exhaust SF600 Alum

205/73

2.08/1.60
4.06
1 3/4" Pipe

149/121

205/173

260/208

291/231

315/240

327/244

AFR 220 CNC SF600

220/70

2.10/1.60
4.125
1 7/8" Pipe

58-69

154/129

207/188

267/230

302/245

321/251

333/255

340/258

AFR 225 Old Race SF600

225/80

2.08/1.60
4.125
1 7/8" Pipe

149/130

216/187

264/230

295/242

312/250

320/255

AFR 225 Race SF600

225/80

2.08/1.60
4.125
1 7/8" Pipe

143/130

211/187

260/230

289/242

317/255

325/258

AFR 225 Out of Box

225/80

2.08/1.60

147/110

205/152

257/211

287/225

299/229

312/230

AFR 225 Ported ET Performance

225/-

2.08/1.60
4.03

74/56

146/115

207/157

262/195

299/210

312/219

323/223

327/-

Avenger Alum

N/A

2.02/1.60

270/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Avenger 185 CNC Alum

185/80

2.02/1.60

60/70

69/59

129/118

188/153

234/178

269/189

278/195

281/210

288/228

Avenger 205 CNC Alum

205/80

2.05/1.60

60/70

70/61

142/124

190/162

252/200

284/218

299/225

305/230

309/235

Avenger 215 CNC Alum

215/80

2.05/1.60

60/70

75/61

146/106

194/162

254/200

287/216

300/226

310/235

Avenger 230 CNC 20 Deg Alum

230/82

2.08/1.60

60/70

74/68

147/125

205/178

258/215

289/227

308/235

318/245

322/245

Avenger 230 R CNC 20 Deg Alum

230/82

2.08/1.60

60/70

78/68

150/125

212/178

260/215

291/227

315/235

329/245

339/245

Avenger AK-400 CNC Alum

270/-

2.15/1.60

47/52

79/57

154/112

212/147

275/197

325/227

371/242

409/257

417/266

Avenger SX1-SC1 CNC Alum

260/105

2.15/1.60

46/68

76/56

144/110

212/145

279/197

326/222

372/238

391/252

412/266

Blue Thunder Alum

220/-

N/A

360/270

Blue Thunder Out of Box Alum

N/A

2.15/1.625

N/A

84/71

160/130

236/168

293/193

332/214

361/224

Blue Thunder Ported Flatlanders Stage 3 Alum

220/

2.20/1.71

N/A

400/300

Blue Thunder Ported Flatlanders Comp Alum

N/A

2.225/1.70
4.155

N/A

423/311

Blue Thunder 4.3 Ported ET Performance Alum

270/-

2.18/1.60
4.155

66/52

145/116

221/155

302/180

350/225

400/245

408/258

410/265

414/274

416/280

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Blue Thunder 4.3 Ported ET Performance Alum

290/-

2.20/1.60
4.125

67/52

147/116

227/155

313/180

368/225

411/245

422/258

427/265

435/274

440/280

Blue Thunder 4.3 Ported ET Performance Alum

300/-

2.25/1.60
4.125

67/52

144/104

239/138

314/165

367/186

408/234

434/250

437/260

436/274

440/280

Blue Thunder 3.6 Ported ET Performance Alum

255/-

2.20/1.625
4.155

74/62

145/110

209/148

271/181

321/209

351/231

362/243

370/252

Blue Thunder Ported CPF SF600 Alum

N/A

2.26/-
4.125

N/A

62/-

139/-

224/-

317/-

381/-

425/-

439/-

450/-

453/-

458/-

Blue Thunder Ported SF600 Alum

N/A

-
4.155

N/A

59/-

133/-

220/-

305/-

358/-

413/-

426/-

431/-

Brodix SP FO Alum

195/-

2.08/1.60

120/103

180/130

224/153

241/166

255/179

267/191

270/202

Brodix Track 1 53/119 Alum

195/-

2.08/1.60

124/100

172/129

212/153

241/166

255/176

261/180

Brodix T1 F Std X SUPR Alum

195/-

2.08/1.60

120/103

180/130

224/159

255/179

267/191

270/202

Brodix Track 1 X 53/119 Alum

195/-

2.08/1.60

124/100

172/134

212/164

241/184

255/195

261/203

Brodix Track 1 CNC M2 Race Systems 53/119 Alum

211/-

2.08/1.60
4.03

136/115

194/156

247/198

287/214

312/220

315/225

Brodix T1 Std 20 Deg CNC M2 Race Systems 53/119 Alum

211/-

2.08/1.60

150/124

216/164

263/196

300/211

316/217

317/224

Brodix T1 STS Std 214 20 Deg CNC 53/119 Alum

214/-

2.08/1.60

140/119

210/161

265/190

298/203

320/212

326/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix T1 STS Std 225 20 Deg CNC 53/119 Alum

225/-

2.08/1.60

147/119

215/161

262/190

303/203

324/212

334/220

Brodix T1 Std 20 Deg Ported Jones Engineering I-45 E-45 Alum

218/-

2.08/1.60

126/95

185/128

239/177

282/212

306/224

313/230

319/236

Brodix ST 5.0 & ST 5.0 R 20 Deg 53/119 Alum

171/-

1.94/1.60

130/100

186/132

225/156

237/172

241/184

Brodix ST 5.0 R 20 Deg CNC M2 Race Systems 53/119 Alum

185/-

2.02/1.60
4.03

145/119

208/150

245/179

272/198

277/209

281/216

Brodix ST 5.0 R Ported Chad Speiers V2.50 SF600 53/119 Alum

N/A

2.08/1.60
4.06
1 7/8" Pipe

134/111

194/147

240/180

272/203

294/217

310/229

322/233

327/238

328/242

Brodix ST 5.0 R Ported Chad Speiers 53/119 Alum

225/-

2.10/1.60
4.06

138/113

199/148

238/180

276/203

303/217

321/227

327/235

333/239

337/241

Brodix ST 5.0 Ported Fox Lake 53/119 Alum

187/80

2.02/1.60
4.03

201/147

243/192

269/211

285/219

Brodix KC LH F 17 Deg 195 CNC 53/119 Alum

195/-

2.02/1.60

154/119

219/169

260/200

287/209

294/214

300/214

Brodix KC LH F 17 Deg 210 CNC 53/119 Alum

210/-

2.08/1.60

151/113

223/166

269/200

300/217

319/222

323/222

Brodix KC 195 S 17 Deg Keith Craft 53/119 Alum

195/-

2.02/1.60
2" Pipe

155/114

217/162

266/202

293/223

300/234

305/235

Brodix KC 210 S 17 Deg Keith Craft 53/119 Alum

210/-

2.08/1.60
2" Pipe

146/117

211/171

261/216

297/237

322/247

328/252

325/254

Brodix Neal BF200 Ported Alum

248/-

2.125/1.60

165/110

224/151

279/201

325/231

355/244

364/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix Neal BF200 Ported Al Neal Alum

293/-

2.125/1.60

177/109

245/148

309/206

333/234

365/245

388/267

Brodix Neal BF200 Ported TEA Alum

318/-

2.225/1.60
4.155
Pipe

40-47

63/58

137/119

227/161

299/228

359/271

393/292

414/303

421/310

428/316

435/320

Brodix Neal BF201-202 Ported Alum

255/-

2.18/1.60

153/105

218/143

277/200

333/236

370/249

388/258

391/263

Brodix Neal BF201 Ported Chapman Alum

287/157

2.18/1.625
-
No Pipe

44.5

64/52

142/107

221/164

284/208

339/236

379/242

385/251

387/254

Brodix Neal BF202 Alum

277/-

2.18/1.60

136/109

221/165

276/207

327/235

368/245

391/253

Brodix Neal BF202 used CHW Alum

280/156

2.18/1.60
-
No Pipe

66/57

139/100

193/128

245/177

290/196

311/211

331/228

352/244

Brodix Neal BF202 Ported Bennett Alum

N/A

425/300

Brodix Neal BF202 Ported TEA Alum

260/-

2.125/-

N/A

380/-

Brodix Neal BF202 Ported TEA Alum

295/-

N/A

400/-

Brodix Neal BF202 Ported TEA Alum

311/-

N/A

70/61

145/116

227/163

304/226

365/264

398/284

420/296

432/306

Brodix Neal BF202 Ported TEA Alum

311/-

2.20/1.60

56-58

64/61

137/116

230/163

300/226

360/264

389/284

411/296

424/306

Brodix Neal Bennett Ported

N/A

420/280

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix Neal BF300-301 Ported Alum

196/-

2.125/1.60

152/122

214/166

265/195

300/213

325/220

331/225

334/228

Brodix BF301 HRD Ported Alum

N/A

2.125/1.60

143/128

218/172

290/221

321/230

354/259

362/266

Brodix Neal Ported ET Performance Alum

N/A

2.10/1.60
4.125

N/A

70/53

147/110

230/164

291/205

344/232

380/250

406/261

406/269

410/275

Canfield 170 Alum

170/-

2.02/1.60
-
No Pipe

123/89

166/123

207/148

237/174

Canfield 192 SF600 Alum

192/-

2.02/1.60
-
No Pipe

54/58/65

70/54

150/102

204/132

242/171

262/190

272/201

274/207

Canfield 193 Out of Box plus VJ SF600 Alum

193.7/-

2.02/1.60
-
1 3/4" Pipe

N/A

78/63

157/108

209/140

251/178

268/193

280/203

283/210

Canfield 195 VJ SF600 Alum

195/-

2.02/1.60
4.03
1 3/4" Pipe

54/58/65

150/107

203/131

243/171

263/183

272/190

276/201

281/209

Canfield 215 Ported TEA Alum

215/-

N/A

66/54

144/116

219/165

261/211

281/237

300/253

310/264

Canfield Ported Fox Lake Alum

N/A

2.02/1.60

277/217

300/230

Canfield Ported Alum

N/A

2.02/1.60

N/A

133/102

191/152

243/185

276/206

288/216

300/221

Canfield Ported Doug Alum

N/A

2.02/1.60

N/A

68/61

138/118

208/167

255/198

282/211

296/224

CFE ProKing 10 Deg Alum

N/A

-/255

410/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart '98 Flowtech - Steven Magnotti 3 Angle VJ SF110 Alum

197/-

2.02/1.60
4.00
No Pipe

N/A

61/49

120/101

164/125

199/146

218/156

242/160

254/-

Dart Windsor Kendrick Auto

N/A

2.02/1.60

N/A

75/58

127/115

175/122

214/154

235/168

247/171

250/171

Dart Windsor Ported Kendrick Auto

N/A

2.02/1.60

N/A

79/59

149/120

184/144

238/179

267/195

295/202

301/205

Dart 180 Iron Eagle

180/73

1.94/1.60
4.03
No Pipe

125/112

178/139

226/152

247/159

256/161

260/163

Dart 200 Iron Eagle

200/73

2.02/1.60
-
No Pipe

58/62

154/112

208/139

254/152

271/159

274/161

276/163

Dart PRO1 170 No Back Cut Alum

170/65

1.94/1.60
4.03
No Pipe

137/112

200/151

240/171

251/173

261/172

Dart PRO1 195 No Back Cut Alum

195/75

2.02/1.60
4.155
No Pipe

145/116

205/150

246/172

272/180

283/184

288/185

Dart PRO1 210 CNC 20 Deg SF600 Alum

210/76

2.05/1.60
4.03
No Pipe

132/108

195/151

252/187

287/203

305/208

304/212

Dart PRO1 225 CNC 20 Deg SF600 Alum

225/85

2.08/1.60
4.155
No Pipe

136/115

201/164

259/205

300/225

323/231

325/238

Dart PRO1 CNC 20 Deg Alum

225/87

2.08/1.60
4.155
No Pipe

136/115

201/164

259/205

300/225

323/230

325/235

Edelbrock E-Street 5023, 5025 SF1020 Alum

170/60

1.90/1.60

65/42

121/92

174/130

216/150

242/162

249/168

Edelbrock E-Street 5023, 5025 SF1020 Alum

170/60

2.02/1.60

65/42

121/92

174/130

216/150

242/162

249/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock E-Street Ported Fox Lake SF600 Alum

200/-

2.02/1.60
4.03

N/A

72/69

140/120

208/175

250/199

273/217

303/235

Edelbrock 6022, 6032 OLD Alum

170/60

1.90/1.60

72/57

132/104

183/142

214/163

225/170

224/174

Edelbrock 6025, 6035 OLD Alum

170/60

2.02/1.60

70/57

128/104

183/142

219/163

229/172

226/174

Edelbrock Performer 60329, RPM 60299 SF1020 Alum

170/60

1.90/1.60

N/A

72/57

132/104

183/142

216/159

245/170

249/174

244/175

Edelbrock Performer 60359, RPM 60259, 60399 Alum

170/60

2.02/1.60

N/A

70/57

128/104

183/142

219/163

251/170

255/174

246/175

Edelbrock Performer RPM Ported Fox Lake SF600 Alum

200/-

2.02/1.60
4.03

73/65

142/118

208/159

247/204

277/221

300/230

Edelbrock Performer 5.0/5.8l 60289, 60379 SF1020 Alum

170/60

1.90/1.60

72/57

131/105

185/131

214/156

223/168

226/175

Edelbrock Performer 5.0/5.8l 60299, 60399 SF1020 Alum

170/60

2.02/1.60

70/57

130/104

185/142

219/163

229/172

226/175

Edelbrock/ Glidden 51319 CNC Alum

169/68

1.94/1.57

72/60

140/115

203/165

247/192

260/203

261/207

Edelbrock/ Glidden 51309 CNC Alum

188/68

2.02/1.57

77/60

147/115

212/165

259/192

284/203

293/207

285/209

Edelbrock/ Glidden Victor Ported ET Performance Alum

300/-

2.16/1.57
4.125

66/50

140/114

212/153

281/186

323/220

355/244

372/256

378/267

383/273

Edelbrock/ Glidden Victor Ported Jim Kuntz Alum

312/97

2.18/1.58

394/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock/ Glidden Victor 15 Deg CNC 61099 Alum

280/94

2.15/1.56
-
No Pipe

78/55

152/110

230/182

275/216

330/230

355/238

365/242

Edelbrock/ Glidden Victor 15 Deg CNC Chapman 6109 Alum

280/95

2.15/1.56
-
No Pipe

72/57

144/98

211/130

266/163

313/206

343/225

364/234

368/243

Edelbrock/ Chapman Victor 15 Deg CNC 61299 Alum

276/95

2.10/1.65

70/53

141/105

212/182

273/204

315/227

343/237

355/242

Edelbrock/ Chapman Victor 15 Deg CNC 6129 Chapman Alum

277/95

2.15/1.625

70/53

141/105

212/166

273/204

315/227

343/237

355/242

357/251

Edelbrock Victor 15 Deg 612969 SF1020 Alum

240/80

2.125/1.625

76/67

141/110

203/152

256/187

298/210

323/215

339/220

Edelbrock Victor 15 Deg 77219 Alum

240/80

2.125/1.625

76/67

141/110

203/152

256/187

298/210

323/215

339/220

Edelbrock Victor 15 Deg 7721 Ported Chad Speier Alum

N/A

2.18/-
4.155

N/A

145/-

217/-

275/-

329/-

366/-

384/-

390/-

394/-

Edelbrock Victor 15 Deg 7721 Ported Chad Speier Alum

290/-

2.18/1.60
4.155
2" Pipe

151/111

229/164

285/207

337/237

367/255

375/266

386/272

389/275

393/278

Edelbrock Victor 15 Deg 7721 Ported BuschRacing I-45 E-45 Alum

N/A

2.125/1.625
4.06

N/A

222/185

273/223

325/249

362/262

375/270

383/278

381/285

Edelbrock Victor Ported Fox Lake Stage 1 Alum

281/-

2.125/1.625

38-62

366/281

Edelbrock Victor Ported Fox Lake Stage 2 Alum

301/-

2.20/1.625

38-62

381/281

Edelbrock Victor Ported Bennett Alum

N/A

40/60

410/285

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor -13 Ported Bennett Alum

266/-

2.18/1.56

N/A

70/52

148/97

225/140

277/174

324/212

366/238

378/258

388/264

392/271

Edelbrock Victor -13 Ported Bennett Alum

N/A

2.18/1.58

400/272

Edelbrock Victor -15 Ported Bennett Alum

272/-

2.18/1.60

N/A

68/50

144/95

210/140

262/180

305/215

344/240

374/262

400/274

409/276

Edelbrock Victor Ported Fox Lake Stage 1 Alum

251/-

2.125/1.625

38/56

351/255

Edelbrock Victor Ported Fox Lake Stage 2 Alum

293/-

2.205/1.625

38/56

376/274

Edelbrock Victor 7721 Ported Gamrace Alum

290/-

2.18/1.625

210/165

276/215

331/240

368/255

391/265

391/270

Edelbrock Victor 7708 Ported Gamrace Alum

310/-

2.20/1.60

223/152

288/204

337/236

365/254

382/260

397/265

400/270

Edelbrock Victor Ported TEA Alum

N/A

2.12/1.62

N/A

75/61

149/125

231/180

274/230

313/263

345/280

359/295

Edelbrock Victor Ported TEA Alum

280/-

2.15/1.625

N/A

71/61

147/117

224/173

278/218

320/252

358/274

365/287

Edelbrock Victor Ported TEA Alum

295/-

2.18/1.60

N/A

66/61

136/108

216/163

278/224

333/264

380/280

390/285

Edelbrock Victor Ported TEA Alum

305/-

N/A

66/57

136/108

214/154

278/228

339/260

379/282

395/286

399/294

Edelbrock Victor Ported ET Performance Alum

N/A

2.20/1.60
4.155

66/49

144/100

208/161

279/212

325/243

350/265

370/271

384/273

391/275

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Jr. 20 Deg 77169, 77179, 77189, 77199, SF1020 Alum

210/75

2.05/1.60

60/70

64/54

127/108

186/140

234/167

268/189

291/195

285/199

Edelbrock Victor Jr. Alum CCM

N/A

2.05/1.60

N/A

66/53

127/109

186/150

233/179

266/193

276/201

276/204

Edelbrock Victor Jr. Ported Fox Lake Stage 1 Alum

210/-

2.055/1.60

60/70

280/220

Edelbrock Victor Jr. Ported Fox Lake Stage 2 Alum

215/-

2.055/1.60

308/230

Edelbrock Victor Jr. Ported Fox Lake Stage 3 OLD Alum

223/-

2.055/1.60

N/A

320/240

Edelbrock Victor Jr. Ported Fox Lake Stage 3 Alum

230/-

2.08/1.625

65/75

332/255

Edelbrock Victor Jr. Gamrace Alum

N/A

2.05/1.60

N/A

182/145

225/166

258/182

274/189

270/103

Edelbrock Victor Jr. CNC Chambers Gamrace Stage 1 Alum

217/-

2.08/1.60

198/165

253/190

290/210

306/220

306/225

Edelbrock Victor Jr. CNC Race Gamrace Stage 1 Alum

232/-

2.08/1.60

208/160

263/195

300/224

321/238

327/244

332/247

Edelbrock Victor Jr. Ported Modern Cylinder Heads Alum

N/A

2.055/1.60

N/A

329/249

Edelbrock Victor Jr. Ported Bullet Cylinder Heads Alum

224/83

2.05/1.60

71/68

134/114

194/150

250/171

285/190

307/203

311/218

Edelbrock Victor Jr. 20 Deg 61269 Pro-Port CNC SF1020 Alum

230/80

2.10/1.60
4.00

67/51

141/110

209/174

254/207

287/218

309/218

321/224

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Jr. 20 Deg 61279 Pro-Port CNC SF1020 Alum

230/80

2.10/1.60
4.00

67/52

141/110

209/173

254/210

287/221

309/224

321/227

Edelbrock Victor Jr. Ported TEA Alum

225/-

2.05/1.60

N/A

76/66

143/125

204/174

260/215

298/244

314/261

320/270

Edelbrock Victor Jr. Ported TEA Alum

225/-

2.05/1.60
4.03
Pipe 1 7/8

N/A

76/57

143/125

210/174

265/215

305/244

311/250

320/261

Edelbrock Victor Jr. Ported TEA Renegade Alum

225/-

2.05/1.60

N/A

64/52

133/122

202/175

253/219

297/247

312/266

320/278

Edelbrock/ Glidden Victor Jr. 18 Deg 61309 CNC SF1020 Alum

225/78

2.08/1.60

65/56

142/112

207/176

260/207

296/221

312/226

318/228

Edelbrock/ Glidden 6130 CNC Chapman Alum

212/80

2.08/1.60
-
No Pipe

65/56

142/112

207/176

260/207

296/221

312/226

318/228

Edelbrock Victor 15 Deg 77289, 77299 Alum

255/90

2.10/1.625

48/58

68/54

145/112

215/167

266/198

303/206

323/207

327/209

Edelbrock/ Glidden II GV2 77319 Ported Chad Speier Alum

N/A

-
4.155
2" Pipe

N/A

140/108

216/154

281/208

336/242

380/260

405/274

417/278

420/282

429/284

Edelbrock RPM Xtreme CNC SF1020 Alum

185/75

2.02/1.57

78/63

146/119

213/173

257/197

281/205

292/209

Edelbrock Performer RPM Clevor 61629, 61699 SF1020 Alum

190/90

2.05/1.60

68/54

128/105

180/138

227/151

260/161

265/165

Edelbrock/ Glidden SC-1 Port BES Alum

N/A

2.25/1.60

35-49

143/106

226/160

295/202

354/233

405/253

423/265

439/275

448/278

457/281

Edelbrock SC-1 Ported TEA Alum

380/-

2.225/1.60
4.185

N/A

63/53

135/113

225/170

297/232

362/270

410/294

431/312

445/321

462/328

470/333

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock SC-1 Ported Fox Lake SF600 Alum

N/A

-
4.155

N/A

150/115

226/172

279/214

348/242

400/258

435/273

461/285

462/296

Flo-Tek OLD Alum

180/62

1.94/1.54

61/57

124/98

178/119

209/137

223/161

248/191

Flo-Tek 180 SF1020 Alum

180/62

1.94/1.54

114/98

169/132

209/136

218/136

224/136

227/136

197/130

Flo-Tek 190 SF1020 Alum

190/71

2.02/1.54

147/114

206/151

235/168

254/178

268/190

274/203

277/206

Holley 5.0 Systemax

175.5/71

1.94/1.60

63/56

124/100

174/130

206/155

221/167

233/176

Holley 5.0 Systemax Weingartner Racing

N/A

1.94/1.60
4.155

N/A

62/59

122/98

173/124

207/143

215/156

213/163

212/167

Holley 5.0 Systemax Ported

N/A

2.02/1.60

67/54

142/106

200/152

236/190

273/225

292/225

Jegs Kaase Bullet Cylinder Heads Alum

248/83

2.10/1.60

77/64

150/109

216/160

270/209

312/222

332/229

346/235

Kaase P-38 Heads SF1020 Alum

240/86

2.10/1.60

156/111

219/142

265/169

297/185

308/199

309/208

Kaase P-38 Heads SF1020 Alum

240/86

2.10/1.60

163/110

232/153

285/194

328/222

348/233

350/238

Patriot Freedom 185 Alum

185/72

2.02/1.60

83/68

152/120

210/161

238/186

256/198

268/204

Pro Comp SF600 Alum

N/A

2.02/1.60
4.00
Pipe

N/A

103/101

140/136

179/169

218/172

244/170

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp MMFF Alum

190/-

2.02/1.60

59/47

116/85

167/126

213/157

241/171

251/176

258/180

Pro Comp MMFF Alum

210/-

2.02/1.60

N/A

57/55

102/91

147/131

194/160

233/170

256/174

262/177

Pro Comp CNC Alum

210/80

2.02/1.60
-
1 7/8" Pipe

135/115

193/185

232/203

258/214

277/224

Pro Comp CNC MMFF Alum

215/-

2.05/1.60

N/A

63/53

130/102

182/139

230/166

264/186

291/198

303/205

Pro Comp CNC Alum

225/80

2.05/1.60
-
1 7/8" Pipe

147/120

205/165

258/185

289/222

306/232

314/240

Pro-Filer CNC HP Speier Racing Alum

227/-

2.08/1.60
4.03
2" Pipe

N/A

141/101

212/150

263/195

298/224

317/242

330/253

337/261

343/265

348/268

Pro Topline CNC MMFF

N/A

2.10/1.60

69/51

123/102

171/140

221/175

264/207

292/216

305/221

Pro Topline Cyclone CNC Gamrace Alum

215/-

156/-

204/-

248/-

275/-

294/-

304/-

306/-

Pro Topline Gerald Alum

215/-

2.08/1.60
4.03

N/A

129/-

186/-

232/-

265/-

284/-

292/-

299/-

Pro Topline Out of Box Weingartner Racing Alum

215/-

2.08/1.60
4.155
No Pipe

N/A

60/51

118/95

155/116

210/143

258/168

287/182

291/190

290/194

294/-

RHS CCM Alum

180/-

2.02/1.60
4.03
No Pipe

N/A

63/44

118/97

172/133

223/159

249/169

255/174

266/177

RHS Pro Action / Pro Topline SF600 Alum 180

180/-

2.02/1.60

58/64

72/60

154/121

208/159

254/184

271/193

274/199

276/202

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Action / Pro Topline 180 CNC Livernois Motorsports SF600 Alum

195/-

2.02/1.60
4.03
No Pipe

66/56

141/108

215/140

252/177

278/204

298/211

RHS Pro Action / Pro Topline 180 CNC Livernois Motorsports Alum

210/-

2.02/1.60
-
1 3/4" Pipe

N/A

68/52

151/113

216/142

252/176

283/191

313/213

RHS Westech 180 Iron

180/-

2.02/1.60
4.03

57/48

111/98

158/133

206/170

240/189

252/198

260/203

RHS Westech 200 Alum 200

200/-

2.02/1.60

65/50

118/96

167/130

216/157

254/175

271/181

277/-

RHS Westech 200 Iron

200/-

2.02/1.60
4.03

63/50

119/104

172/140

216/174

244/193

264/203

275/209

RHS Pro Action / Pro Topline SF600 Alum 200

200/-

2.02/1.60

58/64

68/60

143/121

212/159

259/184

277/193

283/199

286/202

RHS Pro Action / Pro Topline SF600 Alum 215

215/-

2.08/1.60

58/64

75/60

151/121

217/159

267/184

302/193

310/199

314/202

RHS Pro Action / Pro Topline Alum 215 Shawn

215/-

2.08/1.60
4.125
No Pipe

N/A

75/70

132/112

186/135

234/178

270/193

285/195

294/199

RHS 215 Out of Box Weingartner Racing

215/-

2.08/1.60
4.155
No Pipe

N/A

70/57

141/107

200/140

238/157

271/164

287/165

290/166

294/164

291/163

RHS 215 Ported Weingartner Racing I-50 E-45

N/A

2.08/1.60
4.155
No Pipe

N/A

65/54

146/104

217/137

263/166

301/185

330/202

342/215

342/219

344/220

RHS Ported Chad Speiers I-45 E-45 Iron

216/-

2.055/1.60
4.00
1 3/4" Pipe

N/A

141/110

215/157

262/193

295/211

312/219

318/228

327/233

330/236

333/238

RHS Ported Revolutionary

227/-

2.08/1.60
4.155
No Pipe

73/66

138/130

205/167

258/194

296/213

319/229

333/233

339/239

342/239

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Westech 215 Iron

215/-

2.08/1.60
4.03

60/52

116/102

168/134

217/172

260/181

292/190

305/200

SuperBoss 351 PowerHeads SF600

205/105

2.19/1.71

76/63

136/105

186/151

235/179

284/200

312/215

SuperBoss 351 Ported PowerHeads SF600

230/125

2.19/1.71

90/87

149/120

210/173

257/205

305/231

341/241

TFS Street Heat SF600

192/-

2.02/1.60

255/190

TFS Street Heat SF600

N/A

2.08/1.60

340/-

Trick Flow 170 Ported Smithberg Racing Alum

185/-

2.02/1.60
4.03
No Pipe

N/A

80/47

146/102

208/135

258/166

285/197

302/212

305/218

Trick Flow HP SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

133/103

186/138

230/166

257/183

267/193

Trick Flow HP TEA SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

137/103

194/138

244/166

270/183

283/193

Trick Flow HP CNC Chamber SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

137/103

194/138

244/166

270/183

283/193

Trick Flow HP CNC SF600 Alum

225/95

2.08/1.60
4.03
2" Pipe

333/255

Trick Flow HP CNC SF600 Alum

225/95

2.08/1.60
4.03
2" Pipe

72/58

146/117

216/162

268/210

305/234

322/247

335/257

Trick Flow HP / Street Heat Ported Fox Lake Stage 1 Alum

208/-

2.02/1.60

285/215

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow HP / Street Heat Ported Fox Lake Stage 2 Alum

215/-

2.055/1.60

311/230

Trick Flow HP / Street Heat Ported Fox Lake Stage 3 Alum

227/-

2.08/1.60

331/250

Trick Flow HP / Street Heat Ported Fox Lake Stage 5 Alum

240/-

2.08/1.625

352/251

Trick Flow HP / Street Heat Gamrace Alum

N/A

2.02/1.60

N/A

117/102

170/138

213/166

238/183

252/193

259/-

Trick Flow HP / Street Heat CNC Chamber Gamrace Alum

N/A

2.02/1.60

N/A

136/113

198/165

233/187

264/201

272/206

279/209

Trick Flow HP / Street Heat Ported Gamrace Alum

205/-

2.08/1.625

214/173

254/202

288/215

296/222

307/227

307/232

Trick Flow HP Ported Bennett Alum

227/-

2.10/1.60

56-74

332/260

Trick Flow HP Ported TEA Alum

N/A

2.08/-

N/A

281/-

306/-

324/-

333/-

340/260

Trick Flow HP Ported TEA 218 Alum

218/-

2.08/1.60

N/A

72/58

144/117

205/162

261/203

295/229

316/236

332/241

Trick Flow HP Ported TEA 225 Alum

225/-

2.08/1.60
4.03
2" Pipe

N/A

68/58

146/112

213/163

271/210

313/239

332/251

341/258

347/259

Trick Flow HP Ported TEA 225 Alum

225/-

2.08/1.60

N/A

71/63

142/120

218/175

277/221

313/248

331/265

346/276

Trick Flow HP Ported TEA 245 Alum

245/-

2.10/1.60
4.125
2" Pipe

N/A

69/51

146/112

229/168

292/209

318/238

341/258

351/269

355/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow HP Ported TEA 245 Alum

245/-

2.10/1.60
4.125

N/A

73/62

151/133

238/189

298/239

325/259

341/266

351/270

354/272

Trick Flow HP Ported TEA 250 I-50 Alum

250/-

2.125/1.60
4.155
2" Pipe

65/56

142/121

214/182

270/225

322/250

346/263

360/272

369/277

373/281

377/282

Trick Flow HP Ported TEA 255 Alum

255/-

2.125/1.58

N/A

61/51

136/121

220/175

281/221

325/250

353/267

370/274

380/281

385/284

391/285

Trick Flow HP Ported TEA 255 I-55 Alum

255/-

2.125/1.60
4.125
2" Pipe

62/58

133/125

214/177

278/222

323/251

355/265

368/276

378/283

384/287

387/290

Trick Flow HP Ported TEA Stage 3 Denny Alum

N/A

2.10/1.60

148/95

216/124

265/156

294/175

309/186

309/194

313/197

Trick Flow HP Ported ET Performance 230 Alum

230/-

2.055/1.60
4.06

72/58

144/115

215/150

262/190

293/215

314/222

325/236

Trick Flow HP Ported ET Performance 240 Alum

240/-

2.125/1.625
4.155

70/54

142/107

196/154

258/194

304/220

333/232

334/245

Trick Flow HP Ported M2 Race Systems Alum

238/-

2.12/1.58
4.155

275/160

320/210

350/240

370/252

Trick Flow TW - CARB SF600 Alum

170/66

2.02/1.60

63/53

141/107

205/144

233/171

251/187

251/193

Trick Flow TW CNC 185 SF600 Alum

185/66

2.02/1.60
4.03
2" Pipe

72/58

142/112

216/150

258/192

287/220

301/231

Trick Flow TW CNC 205 SF600 Alum

205/66

2.02/1.60
4.03
2" Pipe

71/56

144/112

220/150

270/192

299/220

316/231

Trick Flow TW TEA 205 SF600 Alum

205/66

2.02/1.60
4.03
2" Pipe

71/58

143/114

221/152

271/189

301/220

315/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW 190 TFS-51400015 SF600 Alum

190/66

2.02/1.60
4.03
1 7/8" Pipe

69/53

144/111

210/144

252/182

268/193

268/194

Trick Flow TW 190 TH SF600 Alum

190/66

2.02/1.60
4.03
1 7/8" Pipe

N/A

71/57

145/115

214/150

57/187

268/194

273/197

Trick Flow TW 195 Weingartner Racing Back Cut I Alum

195/-

2.02/1.60
4.155

N/A

69/48

143/92

200/129

242/153

276/169

277/179

266/186

Trick Flow TW Ported Ford Performanve Solution Stage I Alum

N/A

295/220

Trick Flow TW Ported Ford Performanve Solution Stage II Alum

N/A

305/225

Trick Flow TW Ported Ford Performanve Solution Stage III Alum

N/A

315/235

Trick Flow TW Ported Fox Lake Stage 1 Alum

175/-

2.02/1.60

281/210

Trick Flow TW Ported Fox Lake Stage 2 Alum

185/-

2.02/1.60

300/220

Trick Flow TW Ported Fox Lake Stage 3 Alum

195/-

2.02/1.60

310/220

Trick Flow TW Ported Fox Lake Stage 4 Alum

207/-

2.055/1.60

320/230

Trick Flow TW Ported ET Performance Alum

215/-

2.08/1.60
4.03

64/57

137/103

203/143

261/178

291/203

310/214

316/221

Trick Flow TW Ported Bennett Stage 2 Alum

N/A

300/215

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW Ported Bennett Stage 3 Alum

N/A

320/230

Trick Flow TW Ported TEA Alum

185/-

2.02/1.60

N/A

72/58

142/114

215/152

259/189

287/220

300/234

Trick Flow TW Ported TEA 190 Alum

190/66

2.02/1.60
4.03
1 3/4 Pipe

71/60

139/111

205/150

257/185

292/212

311/227

Trick Flow TW Ported TEA Alum

205/-

2.02/1.60

N/A

71/58

143/114

221/152

271/189

301/220

315/234

Trick Flow TW Ported TEA Eric Alum

205/-

2.02/1.60

N/A

71/52

145/105

219/146

273/180

305/209

315/228

Trick Flow TW Ported TEA Renegade Alum

205/-

2.04/1.60

N/A

57/53

149/111

228/155

283/203

314/228

325/240

Trick Flow TW R SF600 Alum

206/92

2.08/1.60

305/235

Trick Flow TW R CNC SF600 Alum

225/100

2.08/1.60
4.03
2" Pipe

67/59

141/116

213/159

270/205

308/244

331/259

341/271

Trick Flow TW R Ported Ford Performanve Solution Stage I Alum

N/A

330/250

Trick Flow TW R Ported Ford Performanve Solution Stage II Alum

N/A

345/260

Trick Flow TW R Ported Ford Performanve Solution Stage III Alum

N/A

360/270

Trick Flow TW R Ported Fox Lake Stage 1 Alum

208/-

2.08/1.60

325/245

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW R Ported Fox Lake Stage 2 Alum

216/-

2.08/1.60

335/260

Trick Flow TW R Ported Fox Lake Stage 3 Alum

233/107

2.125/1.625

358/268

Trick Flow TW R Ported Fox Lake Stage 3 Old Alum

240/-

2.15/1.625

362/273

Trick Flow TW R Ported Bennett Stage 1 Alum

N/A

325/240

Trick Flow TW R Ported Bennett Stage 2 Alum

N/A

340/270

Trick Flow TW R Ported Bennett Stage 3 Alum

N/A

360/275

Trick Flow TW R Ported TEA 225 Alum

225/80

2.08/1.60

N/A

67/59

141/121

215/161

271/204

306/243

332/258

345/270

Trick Flow TW R Ported TEA 235 Alum

235/80

2.125/1.60

N/A

70/54

143/106

215/155

271/208

310/250

339/259

358/270

Trick Flow TW R Ported TEA 235 Outlaw Alum

235/80

2.125/1.60

N/A

67/59

143/121

220/164

277/209

316/246

344/259

370/280

Trick Flow TW R Ported TEA 245 Alum

245/100

2.125/1.60
4.125

N/A

82/64

153/115

213/163

267/214

315/255

346/281

370/300

385/305

Trick Flow R Ported Alum

215/-

2.08/1.60

N/A

61/56

130/103

197/141

257/178

300/211

330/230

347/238

Trick Flow 524002xx - R Series SF600 Alum

206/92

2.08/1.60

68/50

147/102

205/146

242/178

275/200

296/212

305/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 52400001/2 - R Series Blend & Polish

N/A

66/55

146/111

208/157

254/200

287/225

307/244

325/254

World Windsor Sr SF600 Iron

N/A

2.02/1.60
-
No Pipe

N/A

66/59

129/106

184/148

226/174

257/181

264/183

268/185

248/186

Windsor Sr

197/-

2.02/1.60

162/121

196/137

218/149

225/160

Windsor Sr

N/A

2.05/1.60

162/121

196/137

218/149

315/-

Windsor Sr Ported Iron

N/A

2.08/1.60

79/63

149/121

205/160

257/190

293/207

310/216

World Windsor Jr SF600 Iron

N/A

1.94/1.60
-
No Pipe

N/A

76/53

127/83

167/117

203/141

231/157

246/168

248/175

248/178

World Windsor Jr

171/-

1.94/1.60

116/84

159/96

189/120

204/126

216/129

222/132

World Windsor Jr Iron

180/84

1.94/1.60

120/81

165/108

195/123

214/130

226/134

234/135

World Windsor Jr Ported Bullet Cylinder Heads Iron

195/-

1.94/1.50

62/53

132/103

185/144

231/170

257/192

273/197

World Roush 200

N/A

2.02/1.60

N/A

129/117

187/139

232/145

257/140

260/152

264/154

World Roush 200 Andrew Iron

N/A

2.02/1.60

61/54

121/108

175/128

219/138

241/145

248/148

World Roush 200 Exhaust Bowl and Chamber Blended Andrew Iron

N/A

2.02/1.60

61/52

121/107

175/156

219/175

241/183

248/188

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Roush 200 Ported Bullet Cylinder Heads Iron

217/83

2.05/1.60

70/58

142/105

201/163

259/198

273/209

300/211

308/210

World 180p.v. Ported Bullet Cylinder Heads Iron

202/79

2.05/1.60

70/54

135/107

193/139

250/172

272/198

293/209

294/211

World / Kuntz 18 Deg 200 Manowar SF600 Alum

200/-

2.02/1.60
-
No Pipe

N/A

67/54

129/107

185/141

227/168

258/184

283/193

299/198

306/200

World / Kuntz 18 Deg CNC 228 SF600 Alum

228/73

2.08/1.60
-
No Pipe

68/59

135/107

195/144

238/178

268/201

296/217

308/225

318/228

World / Kuntz 18 Deg 225 Manowar SF600 Alum

225/-

2.08/1.60
-
No Pipe

62/51

118/101

174/141

219/169

253/186

282/193

299/198

313/200

World / Kuntz 18 Deg CNC 242 Manowar SF600 Alum

242/75

2.10/1.60
-
No Pipe

64/61

124/109

182/149

231/179

266/193

298/199

319/203

326/205

World / Kuntz 18 Deg Alum

230/-

2.12/1.60

N/A

340/230

World / Kuntz 10 Deg 275 Manowar SF600 Alum

275/102

2.20/1.60
-
No Pipe

73/63

148/122

220/166

283/204

327/222

352/237

365/243

347/246

World / Kuntz 10 Deg 285 Manowar SF600 Alum

285/102

2.20/1.60
-
No Pipe

65/52

117/97

182/138

249/173

308/202

348/231

372/244

352/251

World / Kuntz 10 Deg CNC 310 Manowar SF600 Alum

310/106

2.20/1.60
-
No Pipe

65/53

140/106

212/144

274/173

326/195

363/218

381/233

391/240

Ford_Big_Block

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford C1AE Bill Ballinger Iron

144/104

2.03/1.56

N/A

66/52

133/98

193/125

220/138

230/144

237/146

241/147

Ford C1AE Bowl Ported Scott Vincent Iron

N/A

2.09/1.65

N/A

74/49

149/91

202/124

241/162

249/198

259/205

263/212

Ford C1AE Bowl + Blend Ported Scott Vincent Iron

N/A

2.09/1.65

N/A

66/49

141/91

218/124

256/162

269/198

282/205

286/212

Ford C4AE 6090G Iron

150/108

2.03/1.56

N/A

130/111

180/135

220/155

236/165

246/165

Ford C4AE 6090G Ported Les Schmader Iron

N/A

2.09/1.653
-
2" Pipe

70/55

156/109

222/151

257/180

272/195

281/197

291/200

Ford C4AE-G Ported Scott Vincent Iron

170/125

2.09/1.66
-
2" Pipe

N/A

80/56

149/104

207/149

250/186

250/197

253/200

260/199

Ford C6FE-A Flowtech - Steven Magnotti 3 Angle VJ SF110 Alum

N/A

1.94/1.60
4.00
No Pipe

N/A

65/43

118/91

153/120

181/142

190/152

194/-

200/-

206/-

Ford C6FE-A Flowtech - Steven Magnotti Mild Intake Port Ported Exhaust and Chamber Work SF110 Alum

N/A

1.94/1.60
4.00
No Pipe

N/A

67/45

121/96

161/139

195/161

208/164

225/166

233/166

235/-

245/-

Ford C8AE-H Iron

N/A

2.03/1.56

68-71

115/88

168/122

198/133

202/139

Ford C8AE-H Low Riser Flowtech - Steven Magnotti SF110 Iron

N/A

2.055/1.558
-
No Pipe

N/A

56/43

109/84

167/123

196/136

200/140

204/143

208/149

211/152

215/-

Ford C8AE-H Low Raiser Flowtech - Steven Magnotti Ported Exhaust Valve Back Cut 30 SF110 Iron

N/A

2.055/1.558
-
No Pipe

N/A

62/46

130/95

190/141

233/154

253/157

260/162

263/166

266/174

-/182

Ford 428 C0AE Med Riser Flowtech - Steven Magnotti SF110 Iron

N/A

2.09/1.65
-
No Pipe

N/A

61/44

111/86

156/132

196/158

206/175

211/178

215/202

218/204

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford 427 Med Riser Iron

N/A

2.19/1.73

240/-

250/-

Ford 427 Med Riser Ported Keith Craft Iron

N/A

300/-

Ford 427 Med? Riser Iron

N/A

296/177

Ford 427 Hi? Riser Iron

N/A

2.18/1.72

284/177

Ford 427 Hi Riser John Iron

N/A

2.19/-

N/A

83/-

140/-

193/-

239/-

267/-

268/-

275/-

278/-

Ford 427 Hi Riser C4AE 6090F Iron

193/125

2.19/1.73

Ford 427 Hi Riser Ported Iron

N/A

370/-

-/290

Ford 427 Tunnel Port Monty Iron

N/A

2.19/1.73

N/A

97/53

173/105

237/154

273/180

296/190

285/194

283/194

291/196

Ford 427 Tunnel Port Jim Milled Smoothed Exhaust Bowl Iron

N/A

2.19/1.75

84/50

156/105

202/158

242/191

267/205

287/213

301/216

298/217

289/217

Ford 427 Tunnel Port

N/A

2.25/1.73

88-90

308/166

Ford 427 Tunnel Port John

N/A

2.25/-

N/A

81/-

155/-

212/-

255/-

288/-

305/-

315/-

322/-

Ford 427 Tunnel Port C7OE

N/A

2.25/1.73

N/A

161/101

216/141

251/173

269/182

294/184

307/186

314/186

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford 427 Tunnel Port Mild Port Jim Iron

N/A

2.25/1.75
-
No Pipe

N/A

177/115

240/153

279/179

306/190

326/197

342/201

Ford 427 Tunnel Port Ported Iron

N/A

2.25/1.75
-
No Pipe

N/A

383/256

Ford 427 SOHC HRM Iron

N/A

2.25/1.90

N/A

86/60

170/129

244/186

281/220

302/246

324/260

336/264

340/266

Ford 427 SOHC Iron

N/A

2.25/1.90

N/A

355/248

Ford 427 SOHC Ported

N/A

2.30/1.90

N/A

185/130

262/190

340/224

389/253

403/273

405/286

-/295

Ford 427 SOHC Ported R&R HRM Tulip Intake 30 Deg Seat Alum

N/A

2.30/1.90

N/A

92/58

173/130

226/190

283/224

332/253

364/273

380/286

394/295

Ford 427 SOHC Ported R&R HRM Nailhead Intake 45 Deg Seat Alum

N/A

2.30/1.90

N/A

87/58

175/130

270/190

337/224

375/253

400/273

400/286

401/295

Ford 428 CJ Iron

152/122

2.09/1.66
4.18

N/A

76/46

150/85

202/118

228/145

236/163

243/174

244/181

Ford 428 CJ Iron

152/122

2.09/1.66
4.18

N/A

243/181

Ford 428 CJ C80E-N Bill Ballinger Iron

N/A

2.09/1.66

N/A

61/51

135/91

204/121

230/149

248/175

252/179

Ford 428 CJ NHRA Keith Craft Iron

155/123

2.09/1.66-

N/A

275/210

Ford 428 CJ Ported Keith Craft Iron

N/A

2.15/1.66

N/A

224/151

271/186

292/204

300/224

302/228

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford 428 CJ Canadian Iron

170/123

N/A

Blue Thunder M/R Ported Keith Craft Alum

N/A

350/260

Blue Thunder M/R Ported ET Performance Alum

N/A

2.25/1.65
4.350

76/63

156/119

215/161

276/191

318/215

341/229

358/237

Blue Thunder H/R Ported Keith Craft Alum

N/A

405/280

Blue Thunder H/R Ported Alum

N/A

2.30/1.75
4.350
Pipe

385/280

Blue Thunder Ported Shanons Engineering Alum

N/A

350/-

Coon 427 SOHC Ported R&R HRM Nailhead Intake 45 Deg Seat Alum

N/A

2.30/1.90

N/A

81/58

179/133

263/202

340/248

402/280

422/295

429/298

415/300

Dove 427 Tunnel Port Alum

N/A

2.25/1.73

N/A

370/230

Dove 428 CJ Canadian Alum

N/A

2.09/1.65

58/72

320/210

Dove 428 Hi Velocity Alum

N/A

2.09/1.65

58/72

290/-

Edelbrock 6006 Alum

170/125

2.09/1.66

N/A

149/112

185/148

222/171

252/183

Edelbrock 6006 Alum

170/125

2.09/1.66

N/A

77/51

140/100

183/138

214/157

238/174

248/185

256/185

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Edelbrock Performer RPM 390-428 CJ 60069, 61699 SF1020 Alum

170/125

2.09/1.66

72/76

88/64

153/113

195/148

233/171

265/183

270/200

Edelbrock Performer RPM 390-428 CJ 60059 Joe Sherman Alum

N/A

2.09/1.66

N/A

75/55

146/108

182/138

217/159

243/168

258/191

266/197

Edelbrock Performer RPM 390-428 CJ 60059 Mild Port Joe Sherman Alum

N/A

2.15/1.66

75/60

142/120

201/158

251/177

280/188

293/206

302/217

Edelbrock Performer RPM 390-428 CJ 60059 John Alum

N/A

2.09/-

N/A

68/-

125/-

172/-

218/-

237/-

250/-

260/-

262/-

Edelbrock Performer RPM 390-428 CJ 60059 Ported John Alum

N/A

2.25/-

N/A

75/-

147/-

208/-

261/-

285/-

310/-

320/-

339/-

Edelbrock Chad Speier Out of Box SF600 Alum

N/A

2.09/-
4.155

N/A

144/-

183/-

216/-

240/-

249/-

253/-

257/-

Edelbrock Chad Speier Ported SF600 Alum

N/A

2.09/-
4.155

N/A

152/-

217/-

262/-

284/-

297/-

298/-

300/-

Edelbrock 390 Stock BH Performance Alum

N/A

2.09/1.66
-
No Pipe

N/A

70/-

137/-

179/-

224/-

248/-

247/-

253/-

Edelbrock 390 Bowl Port BH Performance Alum

N/A

2.09/1.66
-
No Pipe

N/A

69/64

137/111

194/142

247/166

284/193

298/203

291/208

Edelbrock Performer RPM FE NPS Alum

N/A

2.09/1.66
4.252
No Pipe

N/A

75/52

138/98

177/132

220/160

244/180

248/191

257/194

Edelbrock Performer RPM FE 60079 Alum

170/125

2.09/1.66

88/64

153/113

195/148

233/171

265/183

270/200

Edelbrock Street/Strip Port CCM Alum

N/A

2.19/1.71

76/61

141/118

200/168

248/202

285/221

299/236

304/244

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Edelbrock Ported Alum

N/A

2.09/1.66
4.18

N/A

78/62

153/120

228/154

271/190

294/212

305/230

317/244

330/250

Edelbrock Ported Alum

N/A

2.25/1.78

N/A

340/275

Edelbrock Stage II Ported Keith Craft Alum

N/A

2.09/1.66

N/A

330/250

Edelbrock Stage II Ported Keith Craft Alum

165/130

2.15/1.66
-
2" Pipe

N/A

324/235

Edelbrock Stage II Ported Keith Craft Alum

165/130

2.19/1.75
4.165
2" Pipe

N/A

324/235

Edelbrock Stage III Ported Keith Craft Alum

185/140

2.25/1.75

N/A

270/-

318/-

338/-

355/-

375/280

Edelbrock Stage III Ported Keith Craft Alum

185/140

2.25/1.75

N/A

370/270

380/280

Edelbrock Performer FE Ported ET Performance Alum

N/A

2.19/1.65
4.18

N/A

73/63

148/119

211/158

269/185

305/202

309/217

319/228

Edelbrock Ported Kuntz Alum

N/A

2.15/1.625

N/A

235/159

284/192

319/221

335/243

355/254

356/259

359/262

Edelbrock Ported Kuntz Alum

N/A

2.25/1.75

N/A

232/172

281/203

313/228

333/250

353/261

362/262

Edelbrock Ported Kuntz Alum

N/A

2.30/1.70
-
No Pipe

400/275

Edelbrock Ported Fox Lake SF600 Alum

N/A

-
4.125

N/A

79/72

159/107

220/136

272/183

323/209

334/231

348/253

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Shelby 427 Alum

N/A

2.25/1.75

N/A

241/156

264/175

275/180

279/-

Shelby 427 Alum Stage II Porting

N/A

2.25/1.75

N/A

265/185

294/200

309/209

314/214

Shelby 427 Alum

163/128

2.25/1.75

280/185

Shelby 427 Alum Stage II Porting

N/A

320/235

TFS Brent Lykins SF600 Alum

169.8/-

2.19/1.625
4.155
No Pipe

69.8

96/66

159/120

233/164

283/197

317/215

333/220

333/-

Ultra Pro Machining Billet Canted Valve I-50 E-50 Alum

N/A

2.30/1.75

N/A

77/53

165/103

250/145

328/184

381/222

413/264

436/281

455/291

465/299

471/302

385 Series

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford 429 Iron

N/A

2.08/1.656

N/A

184/119

217/129

239/130

260/-

Ford 429 Iron

N/A

229/174

254/177

272/177

Ford E7TE Scott Johnston Iron

N/A

2.08/1.656

N/A

58/42

117/88

174/117

196/131

224/137

239/141

247/142

Ford E7TE Ported Scott Johnston Iron

N/A

2.08/1.656

N/A

74/54

147/103

211/137

263/169

289/191

303/206

312/219

Ford 429 CJ Iron

N/A

2.24/1.72

N/A

300/189

331/201

Ford D0OE-R CJ Scott Johnston Iron

N/A

2.24/1.72

N/A

67/50

133/94

186/122

235/140

275/151

302/158

322/159

Ford D0OE-R CJ Bret Iron

N/A

2.25/1.75

N/A

72/55

137/109

200/134

266/149

289/157

317/161

337/163

350/-

Ford D0OE-R CJ Ported Mike R Iron

N/A

2.24/1.72

N/A

81/57

156/112

227/151

277/175

310/192

343/203

362/209

375/211

Ford D0OE-R CJ Ported Charlie Evans Iron

N/A

2.24/1.72
-
No Pipe

N/A

71/59

138/102

206/129

265/156

310/175

342/184

364/188

375/211

Ford SCJ Ported Stuska1 Iron

N/A

-
4.40

N/A

76/-

143/-

213/-

261/-

302/-

340/-

367/-

383/-

Ford A429

N/A

152/115

216/149

253/177

280/190

290/197

290/199

Ford A429 Charlie Evans

N/A

69/60

136/104

205/148

261/172

283/180

292/183

298/184

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford A429 Charlie Evans

N/A

2.245/1.76

N/A

72/57

154/121

230/148

298/172

332/213

345/225

357/230

Ford A429 CJ Ported Jon Kaase

N/A

420/295

Ford 429 DOVE Iron

N/A

2.08/1.65
-
2 1/8" Pipe

N/A

68/56

138/105

207/128

246/141

268/144

281/146

Ford 429 DOVE Ported Iron

N/A

2.19/1.735
-
2 1/8" Pipe

N/A

70/59

146/119

217/149

269/167

299/174

308/180

310/-

Ford DOVE Ported chd600 SF600 Iron

N/A

2.19/1.80
-
No Pipe

N/A

68/57

147/110

216/151

273/174

297/188

304/192

Ford 429 DOVE-C CCM Iron

N/A

2.06/1.76

65/47

119/88

178/115

216/124

248/126

270/126

286/-

Ford 429 DOVE-C Iron

N/A

2.06/1.76

N/A

122/87

178/115

226/130

250/140

264/143

274/144

Ford 429 DOVE-C Ported Scott Johnston Iron

N/A

2.19/1.745
-
No Pipe

N/A

86/60

144/107

204/140

270/168

306/195

325/212

342/222

360/230

Ford 429 DOVE-C Ported Charlie Evans Iron

N/A

2.20/-
4.35

N/A

70/-

150/-

223/-

280/-

306/-

317/-

327/-

Ford 429 '73 D2VE-AA FORD Muscle Iron

N/A

2.09/1.66
4.50

N/A

81/69

144/112

202/140

240/150

271/154

290/156

Ford D2VE Ported Blake Iron

N/A

2.25/-

N/A

76/-

164/-

227/-

273/-

298/-

307/-

312/-

318/-

Ford 460 Jim Grubbs CCM Iron

N/A

2.08/1.65
-
No Pipe

N/A

66/47

125/89

185/117

225/127

253/129

271/129

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford 460 DOVE-A2A Dr Js Performance Iron

N/A

69/48

132/97

203/123

240/129

266/129

275/129

282/129

Ford 460 DOVE-A2A Ported Dr Js Performance Iron

N/A

71/50

136/97

206/126

251/148

288/165

317/179

331/190

Ford D20E PI Ported Brian Eyler 45 Deg / Back Cut Intake Tulip Exhaust SF600 Iron

310/-

2.25/1.76
-
No Pipe

N/A

84/65

176/100

246/142

298/174

314/182

329/194

339/199

348/199

Ford 460 D3VE-C Scott Johnston Iron

N/A

2.08/1.65

N/A

62/47

119/87

189/119

236/125

263/129

270/129

Ford 460 D3VE-C Ported Stage 2 Scott Johnston Iron

N/A

2.19/1.76

N/A

95/60

163/107

223/140

268/168

301/195

325/202

342/202

355/202

Ford 460 D3VE-C Iron

244/89

2.08/1.65

N/A

270/128

Ford 460 D3VE-C Ported Iron

N/A

2.19/1.76

N/A

218/148

266/185

291/193

314/205

323/207

Ford 460 D3VE Ported Anderson Port Development Iron

N/A

2.25/-
4.375

N/A

80/-

150/-

219/-

264/-

316/-

351/-

370/-

384/-

390/-

Ford F3TE Ported Scott Johnston Iron

N/A

2.19/1.76

N/A

87/82

163/116

227/150

275/175

305/199

316/215

326/222

Ford 429 New SCJ Alum

290/148

2.20/1.76

330/225

Ford 429 New SCJ Alum

290/148

2.20/1.76

154/103

202/139

248/185

274/200

298/208

309/212

318/214

Ford 429 New SCJ CCM Alum

N/A

2.20/1.76

73/60

155/106

222/141

275/177

314/191

317/203

316/211

321/213

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford 429 New SCJ Hand Blending Alum

N/A

2.20/1.76
-
No Pipe

81/72

155/104

250/146

313/175

359/195

345/206

340/213

331/217

Ford 429 New SCJ Ported Scott Johnston Alum

315/-

2.20/1.76
-
No Pipe

N/A

95/59

166/104

256/153

330/182

356/200

370/213

380/238

370/250

Ford SCJ Ported Smithberg Racing Alum

N/A

2.20/1.76
4.31
No Pipe

N/A

77/63

187/114

274/156

333/190

377/205

399/219

403/229

411/240

Ford 460 CJ SVO

N/A

2.25/1.75

N/A

240/165

274/176

292/181

Ford 460 CJ Kendrick Auto Alum

N/A

2.25/1.76

N/A

144/116

199/159

254/166

291/189

308/194

322/195

Ford 460 CJ Ported Kendrick Auto Alum

N/A

2.25/1.76

N/A

143/123

202/176

264/202

317/230

348/253

371/256

Ford A460 Ported TEA

350/180

2.35/1.88

80/63

160/131

244/179

314/227

380/271

415/311

435/339

457/361

Ford A460 Ported dfree383

N/A

2.40/1.90
4.625
No Pipe

76/59

152/120

235/158

310/197

368/235

413/267

437/292

445/314

Ford A460 Ported Charlie Evans

N/A

2.30/1.88
-
No Pipe

N/A

73/62

157/118

237/164

303/212

362/252

399/283

410/301

421/310

Ford A460 Ported Charlie Evans

N/A

2.35/1.88
-
No Pipe

N/A

75/57

158/110

233/156

297/204

356/244

400/277

430/300

423/311

Ford A460 Ported Charlie Evans

N/A

2.40/1.90
-
No Pipe

N/A

71/57

152/111

239/158

309/206

362/256

405/285

437/300

458/306

Ford B-460 Charlie Evans

N/A

2.38/1.88
-
No Pipe

N/A

159/130

250/178

335/226

405/272

447/313

473/338

484/353

490/363

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford C-460 Charlie Evans

N/A

2.45/1.90
4.625
No Pipe

N/A

159/111

227/150

285/183

327/201

351/214

367/221

380/225

Ford C-460 Bowl Blend Charlie Evans I-45 E-45

N/A

2.45/1.90
4.625
No Pipe

N/A

154/111

230/166

306/217

380/260

425/270

427/293

413/302

Ford C-460 SuperBowl Blend Charlie Evans Tulip Exh

N/A

2.425/1.88
-
No Pipe

N/A

166/129

254/200

319/260

386/292

445/317

456/333

447/345

Ford C-460 Ported Charlie Evans I-45 E-45

N/A

2.45/1.90
4.625
No Pipe

N/A

158/125

238/164

316/212

384/270

431/295

464/315

480/325

Ford C-460 CNC Charlie Evans

N/A

2.45/1.90
4.625
No Pipe

N/A

160/130

245/170

327/210

400/280

450/315

478/340

500/355

Ford C-460 Bowl Blend - Short Turn

N/A

2.40/1.80

N/A

246/161

323/194

384/230

423/290

451/310

469/318

Ford C-460

N/A

440/-

Ford C-460 Ported

N/A

2.45/1.88

N/A

456/330

480/365

496/379

505/385

Ford C-460 Ported Jon Kaase

N/A

2.45/1.88
4.60

N/A

500/385

Ford C-460 Ported M2 Race Systems

N/A

2.45/1.85
4.60

N/A

73/65

139/127

208/176

281/214

345/245

389/276

428/316

457/354

473/363

Ford C-460 Ported MBE I-55 E-55 SF600

N/A

2.55/1.80
4.52
No Pipe

50-90

144/115

211/171

286/218

360/255

416/286

460/306

498/320

517/330

530/340

542/342

Ford C-460 Ported TEA

385/-

2.45/1.90
4.625

N/A

83/63

160/125

257/175

334/260

394/294

442/320

471/339

484/350

490/357

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford C-460 Ported ET Performance

N/A

2.45/1.88
4.60

N/A

90/58

158/120

256/168

330/252

393/272

436/311

468/322

481/340

485/348

Ford C-460 Meaux Racing Ported C460/Larry

N/A

2.40/1.90
4.50
No Pipe

N/A

154/126

227/177

305/217

369/246

414/265

431/284

450/294

Ford C-460 Meaux Racing Ported C460/Larry

N/A

2.40/1.90
4.60
No Pipe

N/A

153/126

226/177

307/217

402/246

430/265

452/284

460/294

Ford E-460 Ported ET Performance

N/A

-
4.50

N/A

80/56

158/113

258/159

345/198

414/232

460/265

485/285

504/303

513/314

Ford E-460 Ported Charlie Evans

N/A

2.52/-
4.625

N/A

248/-

340/-

417/-

483/-

521/-

540/-

550/-

557/-

Ford E-460 Ported Charlie Evans

N/A

2.52/-
4.625

N/A

240/-

325/-

408/-

481/-

525/-

555/-

571/-

Ford E-460 Meaux Racing Ported Glidden SF600

N/A

2.42/1.82
4.50

N/A

137/-

210/-

278/-

345/275

400/312

439/329

457/-

476/-

482/-

Ford Boss 429 Hemi

N/A

2.40/1.90

N/A

379/225

Ford Boss 429 Hemi Dr Js Performance

N/A

2.40/1.94
-
Pipe

N/A

83/60

152/125

243/175

327/217

363/248

361/271

362/287

364/300

Ford Boss 429 Hemi Ported Dr Js Performance

N/A

2.40/1.94
-
Pipe

N/A

81/61

175/140

277/186

360/231

415/269

439/300

444/316

445/327

Ford Hemi Charlie Evans I-30 E-45

N/A

2.282/1.90

N/A

87/56

154/110

201/158

252/190

297/212

330/226

348/237

351/246

Ford New SCJ Scott Johnston Out of Box Alum

N/A

2.20/1.76

N/A

73/60

155/106

222/141

275/177

314/191

317/203

316/211

321/213

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford New SCJ Charlie Evans Out of Box Alum

N/A

2.20/1.76
-
No Pipe

N/A

73/57

167/102

250/144

318/175

340/186

328/196

328/202

Ford New SCJ Bowl blend Charlie Evans Alum

N/A

2.20/1.76
-
No Pipe

N/A

73/58

167/103

252/145

323/177

371/190

349/207

344/218

Ford New SCJ Ported Charlie Evans Alum

N/A

2.20/1.76
-
No Pipe

N/A

72/61

154/114

252/157

336/185

393/204

366/225

362/233

Ford New SCJ Jon Kaase

N/A

2.20/1.76

N/A

84/73

181/119

264/164

330/183

357/199

345/218

345/227

Ford New SCJ Ported

N/A

2.20/1.76

N/A

330/182

380/200

390/217

Ford New SCJ Ported Active Racing SF600

N/A

2.25/1.76

N/A

89/79

173/134

247/171

308/198

337/225

323/242

Ford New SCJ Jon Kaase Stage 1 Ported

N/A

352/249

Ford New SCJ Jon Kaase Stage 2 Ported

N/A

419/266

Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum

N/A

2.575/1.865
-
No Pipe

N/A

175/103

273/154

369/200

457/243

530/286

583/327

614/344

637/351

644/360

Hemi 747jetmech Ported

N/A

2.36/1.96

N/A

122/73

220/159

285/196

360/230

405/257

436/270

433/282

419/291

AFR 270 Alum

270/132

2.25/1.76

75/85

169/130

244/174

309/214

354/238

385/254

AFR 285 Alum

285/142

2.25/1.76

75/85

168/128

245/175

313/218

357/249

396/267

411/276

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

AFR 300 Alum

300/142

2.30/1.76

75/85

162/126

241/172

309/218

360/252

405/274

423/284

Avenger CJ Ported Alum

355/155

2.20/1.76

74/80

79/75

149/138

218/176

278/200

337/226

367/262

381/282

392/293

Bennett Ported C-460

N/A

500/375

Blue Thunder "B" Chevy Exhaust VJ Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

67/60

129/114

188/148

251/176

301/194

322/207

331/215

Blue Thunder "B" Chevy Exhaust Bowl Work Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

71/61

150/118

209/158

273/188

329/213

340/237

343/258

Blue Thunder "B" Chevy Exhaust Ported Street/Strip Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

72/67

148/122

213/163

277/191

331/215

351/241

356/265

Blue Thunder "B" Chevy Exhaust Ported Race Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

73/67

152/122

216/163

281/198

335/227

361/251

377/271

Blue Thunder "B" Chevy Exhaust Ported Gerry Cooper Alum

N/A

163/129

229/171

294/210

343/256

373/285

391/307

410/312

Blue Thunder "B" Ford Exhaust Charlie Evans Alum

N/A

2.30/1.82
4.625

N/A

67/65

129/107

188/144

251/172

301/189

322/194

331/194

Blue Thunder "B" Ford Exhaust Bowl Work VJ Charlie Evans Alum

N/A

2.30/1.82
4.625

N/A

71/63

150/112

209/145

273/174

329/200

340/225

343/244

Blue Thunder CJ 460 CNC Chamber Alum

N/A

2.25/1.88

78/62

167/114

219/147

280/175

322/195

335/211

354/225

364/242

Blue Thunder CJ 460 Bowl and Port Alum

N/A

2.25/1.88

N/A

77/-

155/-

223/-

285/-

340/-

363/-

380/-

389/-

397/-

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Blue Thunder Ported Flatlanders Stage 3 Ford Exhaust Alum

N/A

2.25/1.88

365/234

Blue Thunder Ported Flatlanders Stage 3 Chevy Exhaust Alum

N/A

2.25/1.88

365/245

Blue Thunder Ported Flatlanders Comp Ford Exhaust Alum

N/A

2.25/1.88

412/295

Blue Thunder Ported Ford Exhaust Alum

N/A

2.25/1.88
4.50

N/A

75/63

142/113

210/151

275/184

307/214

341/239

367/256

380/270

Blue Thunder Ported Coast High Performance Comp Ford Exhaust Alum

N/A

2.25/1.88

405/295

Blue Thunder Ported Flatlanders Comp Chevy Exhaust Alum

N/A

2.25/1.88

412/322

Blue Thunder THOR Ported ET Performanc Alum

408/-

2.425/1.84
4.50

86/52

162/118

243/180

319/227

393/275

460/320

482/347

500/357

498/360

498/368

Blue Thunder THOR Ported ET Performanc Alum

440/-

2.475/1.84
4.60

74/52

168/118

245/180

320/227

400/275

452/320

493/347

513/357

525/360

534/368

Blue Thunder THOR Ported ET Performanc Alum

470/-

2.52/1.82
4.60

74/54

168/125

251/174

330/225

406/267

472/305

521/346

555/367

577/395

583/402

Blue Thunder THOR Ported Keith Craft Alum

N/A

580/400

Blue Thunder THOR Gen 2 Ported Charlie Evans Alum

N/A

-
-
No Pipe

N/A

161/125

240/176

321/233

399/300

460/335

495/352

519/361

530/368

540/372

Blue Thunder THOR Gen II Ported Meaux Racing SF600 Alum

N/A

2.48/1.85
-
No Pipe

N/A

136/122

220/176

317/222

385/264

451/307

497/327

522/341

540/350

546/355

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM Ported ET Performance Alum

N/A

2.19/1.76
4.390

N/A

74/61

157/126

227/163

292/195

339/215

370/230

383/247

395/253

Edelbrock Performer RPM 460 60669 FORD Muscle Alum

292/100

2.19/1.76
4.50

95/75

75/68

141/116

208/154

260/181

297/200

309/212

Edelbrock Performer RPM 460 Charlie Evans Out of Box Alum

N/A

2.19/1.75
-
No Pipe

N/A

66/58

135/106

202/144

253/171

296/187

316/200

327/205

Edelbrock Performer RPM 460 Ported Charlie Evans Alum

N/A

2.19/1.75
-
No Pipe

N/A

67/57

138/114

204/158

260/189

309/216

334/230

347/241

Edelbrock Performer RPM 460 60669, 60679 SF1020 Alum

292/100

2.19/1.76

95/75

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 6066, 6067 Ported Alum

N/A

160/125

230/164

289/201

330/221

360/242

379/251

392/262

Edelbrock Performer RPM 460 61649,61659 Victor Jr. 460 CJ 61669 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 460 CJ 61649, 61659 SF1020 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 460 CJ 61649, 61659 Jim Grubbs CCM Alum

N/A

2.19/1.76
-
Pipe

N/A

68/61

136/109

201/148

253/174

300/191

305/202

Edelbrock Performer RPM 460 CJ Out of Box Scott Johnston Alum

N/A

2.19/1.76

N/A

82/64

156/110

225/155

279/182

323/200

341/214

347/212

350/212

Edelbrock Performer RPM 460 CJ Ported Scott Johnston Alum

N/A

2.19/1.76

N/A

79/64

153/114

225/161

278/192

324/215

353/240

365/248

380/250

Edelbrock Performer RPM Ported Keith Craft Alum

N/A

2.245/1.745

75/95

390/260

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Ported Alum

N/A

2.25/1.76

N/A

160/125

230/164

289/201

330/221

360/242

379/251

392/262

Edelbrock Ported Nick Alum

N/A

2.19/1.76
-
No Pipe

N/A

151/112

225/150

277/179

315/200

347/215

364/223

380/228

Edelbrock Victor Jr 460 CJ 61669 SF1020 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Eliminator Alum

N/A

65/63

134/135

203/188

271/233

333/265

380/286

393/297

415/305

431/313

Eliminator 385-902 Ported Alum

371/179

2.425/1.88

450/320

Eliminator 385-903 Ported Alum

371/179

2.425/1.88

480/350

Flow Technologies - EX-514 Ported Iron

N/A

2.35/1.88

N/A

75/56

150/118

227/150

300/191

367/270

407/270

429/293

414/308

419/301

Flow Technologies - EX-514 Dave McLain Alum

N/A

2.35/1.88

N/A

73/66

145/128

217/176

283/210

334/239

377/261

404/278

420/293

419/301

Flow Technologies - EX-514 CNC Dave McLain Alum

N/A

2.35/1.88

N/A

74/64

146/128

219/170

287/212

347/247

388/282

412/302

434/317

436/330

Flow Technologies - EX-514 Stage I Ported Alum

N/A

2.35/1.88

65-84

410/315

Flow Technologies - EX-514 Ported Charlie Evans Alum

N/A

2.35/1.88
-
No Pipe

N/A

70/67

148/116

225/154

296/190

359/229

405/268

435/298

447/317

Flow Technologies - EX-514 Stage III Ported Alum

N/A

2.40/1.88
4.40

65-84

485/345

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Jon Kaase P51 Charlie Evans Out of Box Alum

N/A

2.25/1.76
-
No Pipe

N/A

74/58

172/106

260/144

335/181

376/210

384/227

368/240

368/246

Jon Kaase P51 Intake Bowls Ported Charlie Evans Alum

N/A

2.25/1.76
-
No Pipe

N/A

74/58

171/106

260/144

337/181

384/210

399/227

403/240

407/246

Jon Kaase P51 Ported Charlie Evans Alum

N/A

2.30/1.76
-
No Pipe

N/A

72/57

155/112

253/151

336/187

392/219

423/242

421/255

418/264

Jon Kaase P51 Alum

310/145

2.25/1.76

N/A

72/52

152/107

234/151

306/183

350/202

368/215

388/229

395/239

Jon Kaase P51 SF600 Alum

310/145

2.25/1.76

105/103

175/137

258/170

330/199

375/223

395/242

401/251

Jon Kaase P51 Ported Stuska1 Alum

315/-

-
4.40

N/A

78/-

170/-

261/-

332/-

383/-

398/-

422/-

430/-

433/-

Jon Kaase Boss Nine CCM Alum

N/A

2.30/1.90

N/A

79/65

161/128

244/186

308/244

366/272

409/287

406/299

396/306

Jon Kaase Boss Nine Ported Wells Alum

N/A

2.30/1.90
-
No Pipe

N/A

75/52

158/123

248/172

328/223

388/261

422/290

430/308

432/314

Jon Kaase Boss Nine Ported Wells Alum

N/A

2.30/1.90
-
No Pipe

N/A

74/53

163/127

276/182

356/246

409/282

432/308

430/313

428/315

Pro Comp 300 Alum

300/130

2.19/1.71

73/61

153/110

219/145

241/160

260/174

291/196

306/205

Pro-FilerP/N 205 BBF C Alum

420/-

2.45/1.85

165/135

257/179

331/218

395/262

484/308

512/322

524/329

521/334

Pro-Filer Ported Bennett I-52 E-55 Alum

N/A

2.40/1.90
-
No Pipe

N/A

166/115

243/164

304/210

356/244

410/272

462/289

486/305

504/319

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Pro-Filer 550 Ported Bennett Alum

N/A

2.45/1.85

550/-

Pro-Filer BBF C-460 CNC Darin Morgan SF600 Alum

N/A

2.45/1.85
-
No Pipe

N/A

150/125

237/178

312/233

390/279

456/315

498/342

525/359

540/371

540/376

Shanons Engineering - EX 514 Bowl Blend

N/A

2.35/1.94

63-78

392/288

Shanons Engineering - EX 514 Mod. Ported

N/A

2.35/1.94

63-78

418/310

Shanons Engineering - EX 514 Pro Ported

N/A

2.40/1.90

63-78

458/343

Shanons Engineering - A-series Ported

N/A

481/-

Sonny's Ported C-460

N/A

507/-

Trick Flow Street SF600

N/A

2.20/1.76

N/A

72/60

152/110

219/145

273/180

312/204

334/223

Trick Flow 429/460 SF600 Alum

290/130

2.20/1.76
4.38
2" Pipe

72/60

152/110

219/145

280/180

331/204

344/225

350/240

Trick Flow 429/460 Charlie Evans Out of Box Alum

290/130

2.20/1.76
-
No Pipe

66/50

144/100

211/138

275/168

325/193

351/211

351/222

Trick Flow 429/460 Bowl Work Charlie Evans Alum

N/A

2.20/1.76

N/A

68/54

146/104

214/143

279/178

328/206

356/227

354/235

Trick Flow 429/460 Ported Charlie Evans Alum

N/A

2.20/1.76

N/A

69/64

148/116

233/147

301/208

335/208

357/228

373/240

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Trick Flow 429/460 Ported Smithberg Racing Alum

305/-

2.20/1.76
4.31
No Pipe

77/56

156/115

235/154

294/188

335/218

365/241

385/264

408/279

Trick Flow 429/460 Ported TEA Alum

325/145

2.25/1.76
-
2 Pipe

78/58

138/117

211/158

288/199

343/237

369/260

387/276

394/287

Trick Flow 429 CJ Ported Kaase Alum

N/A

2.25/1.75

N/A

245/172

308/203

350/228

375/241

395/244

401/246

Trick Flow (A460 Style) Ported Fox Lake Stage 1 Alum

N/A

2.30/1.88

411/300

Trick Flow (A460 Style) Ported Fox Lake Stage 2 Alum

N/A

2.35/1.88

442/335

Trick Flow (A460 Style) Ported Fox Lake Stage 3 Alum

N/A

2.35/1.88

238/183

292/225

353/258

396/288

433/311

463/346

465/354

Trick Flow A460 SF600 Alum

340/-

2.30/1.88

423/300

Trick Flow A460 SF600 Alum

340/172

2.30/1.88
4.50
2" Pipe

72/68

142/121

213/164

271/202

325/235

365/262

395/284

412/300

Trick Flow A460 Alum

340/172

2.30/1.88

72/57

142/106

213/145

271/179

325/209

365/238

395/260

412/274

Trick Flow A460 Alum

340/172

2.30/1.88

72/64

142/132

213/156

271/190

325/222

365/250

395/268

412/280

Trick Flow A460 CNC Chamber SF600 Alum

340/172

2.35/1.88
4.50
2" Pipe

N/A

76/67

160/120

246/162

312/204

357/237

392/264

418/286

428/303

Trick Flow A460 CNC SF600 Alum

360/180

2.40/1.88
4.60
2" Pipe

N/A

79/71

162/129

244/175

308/216

369/251

410/280

478/304

458/321

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Trick Flow A460 Dave McLain Out of Box Alum

N/A

2.30/1.88

N/A

72/61

154/126

225/175

279/211

322/243

358/269

372/281

383/292

393/-

Trick Flow A460 Charlie Evans Out of Box Alum

N/A

2.35/1.88

N/A

157/112

233/157

293/190

345/218

380/240

390/255

393/262

Trick Flow A460 Ported Charlie Evans SF600 Alum

N/A

2.35/1.88
4.625
No Pipe

N/A

74/58

161/118

245/165

315/200

375/235

408/267

439/294

465/312

Trick Flow A460 Ported BJs Cylinder Head Alum

N/A

2.392/1.92
4.625
No Pipe

N/A

74/69

153/140

237/180

311/224

368/265

416/296

450/314

452/327

Trick Flow A460 350 Ported TEA Alum

N/A

2.35/1.88

N/A

80/63

160/131

244/179

314/227

380/271

424/311

448/339

460/361

Trick Flow A460 350 Ported TEA Alum

350/180

2.35/1.88

N/A

80/63

160/131

244/179

314/227

380/271

415/311

435/339

457/361

Trick Flow A460 360 Ported TEA Alum

360/180

2.40/1.88
4.60

85/87

80/72

170/134

251/182

325/227

389/271

430/312

455/345

463/364

Trick Flow A460 Ported BES Alum

N/A

164/123

268/172

344/218

403/267

450/311

475/338

485/354

491/367

501/375

Trick Flow A460 Alum

360/180

2.40/1.88
4.60
2" Pipe

85/87

79/71

162/129

244/175

308/216

369/251

410/280

437/304

453/321

GMC - V6

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

'68 478 Magnum Andrew Harman

N/A

2.25/1.88

N/A

86/60

142/115

189/156

227/179

257/198

279/210

290/224

'68 478 Magnum Ported Andrew Harman

N/A

2.35/2.00

N/A

85/75

183/158

220/191

254/225

283/243

318/256

336/275

GM Duramax Diesel

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.500

.600

.700

Average

'04 1/2 Stock Bill Jones Alum

N/A

1.30/1.22

N/A

79/68

143/127

178/138

181/140

180/140

'04 1/2 Minor Porting Bill Jones Alum

N/A

1.30/1.22

N/A

79/67

140/129

181/163

194/169

197/172

197/173

'04 1/2 Pretty Seriuos Porting Bill Jones Alum

N/A

1.30/1.22

N/A

85/79

147/147

193/188

210/195

222/199

229/201

Holden

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

186 Red 12 Port Ported Stage I Iron

N/A

48/49

88/76

120/91

147/107

163/123

HQ Ported Knight Engines

N/A

1.94/-

N/A

66/-

132/-

187/-

223/-

244/-

250/-

HQ Ported Knight Engines

N/A

71/52

136/103

191/138

234/157

245/165

256/169

VN 5.0l Stock

N/A

Stock

N/A

63/54

127/104

173/134

204/155

216/167

237/173

VN 5.0l Ported Stage I

N/A

65/-

133/-

182/-

214/-

237/-

237/173

VN EFI Rams Head Service Alum

N/A

2.02/1.60

69/46

127/99

177/131

210/149

226/161

232/167

236/172

237/173

VN - VT EFI Stage II CNC Bullet Cylinder Heads Alum

182/85

2.05/1.625

62/65

69/53

137/105

188/142

226/169

257/178

271/188

280/194

VN - VS EFI Stage III CNC Bullet Cylinder Heads Alum

192/87

2.05/1.625

69/55

139/108

190/146

230/173

264/182

288/192

295/200

New 2009 CNC Bullet Cylinder Heads Alum

N/A

2.10/1.60

N/A

75/62

146/110

201/150

240/185

283/202

305/214

315/222

Torque-Power 230 CNC Bullet Cylinder Heads Alum

230/91

2.15/1.625
4.00

71/58

144/103

219/144

276/185

312/220

337/229

350/237

Torque-Power 230 CNC Bullet Cylinder Heads Alum

230/91

2.15/1.625
4.125

71/58

141/103

218/144

279/185

319/220

346/229

355/237

Torque-Power 260 CNC Bullet Cylinder Heads Alum

260/-

2.20/1.625
4.125

N/A

380/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Yella Terra -3 CNC Bullet Cylinder Heads Alum

182/74

2.055/1.60

67/65

137/111

196/148

234/174

259/193

272/202

275/204

Yella Terra -9 CNC Bullet Cylinder Heads Alum

N/A

2.10/1.60

57/61

75/62

140/110

212/150

265/185

302/202

326/214

330/222

Yella Terra 12 Port (Black / Blue) Iron

N/A

1.74/1.55

56/68

Honda

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda B16 2 nd Gen CCH

N/A

33mm/28mm

N/A

229/183

Honda B16 2 nd Gen Ported CCH

N/A

33mm/28mm

N/A

273/228

Honda B16 Alaniz Cyl Heads

N/A

33mm/28mm

N/A

75/64

117/104

152/128

179/149

197/165

216/176

233/181

245/185

253/186

Honda B16 Ported Perfmance CNC

N/A

33mm/28mm
-
No Pipe

N/A

102/78

185/147

250/197

278/220

285/226

299/231

306/233

Honda B16 A

N/A

1.30/1.18

N/A

89/88

154/136

199/163

233/173

256/177

262/179

Honda B16 A Ported Todd

N/A

1.30/1.18

N/A

82/87

153/163

215/192

263/198

294/203

305/205

Honda B16 A Ported Kelford Cams

N/A

319/-

Honda B16 A/18 C25 CNC M2 Race Systems

123/-

33mm/ 28mm
3.285

84/76

125/120

164/147

195/166

220/179

242/190

256/203

269/209

280/214

Honda B16 R

N/A

33mm/28mm

N/A

88/78

123/115

158/144

190/167

211/180

227/180

240/191

251/193

259/194

Honda B16 R Ported

N/A

33mm/28mm

N/A

97/93

134/124

167/148

198/176

229/198

258/211

280/219

294/224

301/-

Honda B18 C

N/A

33mm/28mm

N/A

88/81

158/135

211/161

240/165

259/166

Honda B18 C Ported

N/A

33mm/28mm

N/A

89/83

159/152

221/194

269/203

288/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda B18 C1 CNC M2 Race Systems

N/A

33mm/ 28mm
3.285

85/72

126/109

164/152

191/179

218/194

241/206

259/214

273/220

283/225

Honda D16 Open Chamber CCH

N/A

30mm/26mm

N/A

229/170

Honda D16 Open Chamber Ported CCH

N/A

30mm/26mm

N/A

259/210

Honda D16 Closed Chamber CCH

N/A

30mm/26mm

N/A

221/162

Honda D16 Closed Chamber Ported CCH

N/A

30mm/26mm

N/A

255/211

Honda F22a Turbowa Ported

N/A

87/83

127/121

163/150

191/172

218/186

241/198

261/211

276/215

288/218

296/221

Honda F22a1 McFred

N/A

34mm/ 29mm

N/A

82/44

125/75

165/108

200/130

219/143

234/151

251/156

264/160

275/163

Honda F22a1 McFred Ported

N/A

34mm/ 29mm

N/A

78/66

128/104

163/137

194/161

229/178

245/187

252/194

277/198

280/202

Honda F22b2 4 Intake Mike

N/A

32mm/ 29mm

N/A

80/63

149/125

179/152

198/160

207/163

208/169

Honda F22b2 Ported Mike

N/A

32mm/ 29mm

N/A

73/64

139/124

174/166

210/188

240/200

-/205

Honda F22 '90-93 SOHC CHR Motorsports Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

82/44

125/75

165/108

200/130

219/143

234/151

251/156

264/160

275/163

Honda F22 '90-93 SOHC Ported CHR Motorsports 28 Deg Back Cut on Intake Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

94/81

137/110

171/142

197/172

219/193

238/207

256/215

268/221

277/229

286/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda F22 '90-93 SOHC Ported CHR Motorsports 30 Deg Back Cut on Intake Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

103/91

146/110

180/142

206/172

228/193

248/207

273/215

285/221

290/229

300/234

Honda F23 Ported Galto Racing

N/A

33.9mm/28.9mm

85/77

133/116

172/141

209/163

232/176

244/184

258/190

269/195

273/196

Honda GSR Ported WAT Portflow

N/A

33mm/ 28mm
81mm

N/A

84/70

119/111

150/150

183/176

213/188

237/195

255/197

267/198

280/203

Honda H22

N/A

35mm/ 30mm

N/A

87/-

166/-

219/-

251/-

268/-

Honda H22 killer VJ

N/A

35mm/ 30mm

N/A

105/83

175/145

242/186

278/210

293/216

Honda H22 Ported DH Racing

N/A

36mm/ 31mm

N/A

92/71

142/113

185/140

216/160

242/182

265/200

284/212

296/220

307/225

316/229

321/232

Honda H22 Civic Ported Kelford Cams

N/A

1.42/1.22

N/A

94/90

140/139

178/168

212/193

238/211

258/220

272/225

283/229

290/234

Honda H22A M2 Race Systems

N/A

35mm/ 30mm
3.285

N/A

246/181

260/185

270/187

277/187

281/189

Honda H22A CNC M2 Race Systems

N/A

35.5mm/ 30.5mm
3.285

N/A

86/82

132/122

176/165

209/197

239/208

265/218

283/227

296/233

307/236

315/239

321/241

Honda H22A Ported Redline Series JG Engine Dynamics

N/A

35mm/ 30mm

N/A

290/250

Honda H22A Ported Pro Series JG Engine Dynamics

N/A

318/260

Honda H22A Pro Import Ported Kelford Cams

N/A

1.46/1.20

N/A

91/85

138/132

172/165

209/190

237/205

266/213

290/220

309/225

325/229

338/233

347/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda H22A BTCC Ported Kelford Cams

N/A

1.42/1.22

N/A

90/85

140/132

175/165

208/191

233/206

256/214

276/218

293/221

306/223

Honda K20

N/A

34.9mm/ 30mm

N/A

270/-

Honda K20 Sabre Heads

N/A

34.9mm/-

N/A

85/-

132/-

175/-

211/-

238/-

263/-

277/-

281/-

289/-

295/-

Honda K20 Ported Redline Series JG Engine Dynamics

N/A

35mm/ 30mm

N/A

305/250

Honda K20 Ported Pro Series JG Engine Dynamics

N/A

326/265

Honda K20A Mild Port Kelford Cams

N/A

1.38/1.18

N/A

87/78

136/120

176/154

215/183

245/199

268/210

282/216

291/221

298/223

309/226

Honda K20A Race Port Kelford Cams

N/A

1.44/1.18

N/A

96/106

145/155

190/191

229/212

257/219

277/226

290/232

303/236

316/239

325/241

Honda K20A-2 Mike

N/A

35mm/30mm

N/A

289/-

296/-

Honda K20A-2 Alaniz Cyl Heads

N/A

35mm/30mm

N/A

100/83

146/111

188/140

217/164

240/181

260/192

274/196

286/200

295/202

295/204

Honda K20A-2 CNC Alaniz Cyl Heads

N/A

36mm/30mm

N/A

104/84

153/118

197/152

235/194

265/221

288/241

307/251

324/258

333/263

342/268

Honda V-Tech

N/A

33mm/ 28mm

N/A

85/76

160/143

201/167

240/169

254/171

Honda V-Tech Ported M2 Race Systems

N/A

85/72

163/152

218/194

259/214

283/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda V-Tech Ported Redline Series JG Engine Dynamics

N/A

33mm/ 28mm

N/A

285/235

Honda V-Tech Ported Pro Series JG Engine Dynamics

N/A

34mm/28.5mm

N/A

312/243

Dart Honda Fits all B-Series SF600 Alum

125/-

33mm/ 28mm
81.5mm
No Pipe

99/90

168/152

215/176

250/179

269/178

Dart Honda CNC Fits all B-Series SF600 Alum

135/90

34mm/ 28mm
81.5mm
No Pipe

100/92

168/168

236/207

275/221

320/224

RHS / Pro Topline Honda V-Tech Stock Alum

N/A

33mm/ 28mm

N/A

265/-

RHS / Pro Topline Honda V-Tech Cast Blended Alum

N/A

33.5mm/ 28.5mm

N/A

275/-

RHS / Pro Topline Honda V-Tech CNC Alum

N/A

34mm/ 29mm

N/A

295/-

RHS / Pro Topline Honda V-Tech CNC Ed SF600 Alum

N/A

33mm/-

N/A

101/-

187/-

242/-

258/-

274/-

287/-

298/-

307/-

hrd

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.137

.201

.268

.335

.401

.468

.700

Average

Honda B-18 CNC Ported by HRD

N/A

100/90

163/144

200/190

235/205

255/218

265/225

chr

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.098

.201

.299

.350

.402

.500

.598

Average

Honda B-16 A CHR

N/A

33mm/ 28mm

N/A

74/63

114/118

142/148

158/157

167/158

178/158

198/-

Honda B-16 A Ported CHR

N/A

75/66

132/133

156/173

182/183

194/189

222/201

242/-

Hyundai

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

2.0l (BetaII) CHR

N/A

32mm/ 27.85mm

N/A

92/80

130/104

164/129

188/146

204/156

197/161

196/165

2.0l (BetaII) Ported CHR

N/A

104/84

143/110

176/138

203/158

222/172

224/183

226/191

229/196

230/202

'10 2.0l (Theat) Bill Jones

N/A

1.38/1.143

N/A

91/77

165/140

225/169

246/175

259/178

'10 2.0l (Theat) Mild Port Bill Jones

N/A

36mm/30mm3

90/71

164/139

222/181

245/191

260/197

Tiburon 4

N/A

32mm/ 27.85mm

N/A

81/75

128/99

154/123

178/143

187/156

192/161

193/163

194/163

Tiburon 4 Ported

N/A

33mm/ 28.85mm

N/A

88/80

121/105

156/129

212/172

225/186

232/196

238/203

241/206

Tiburon 2.7l V6

N/A

32mm/ 27.5mm

N/A

83/71

113/102

150/128

168/144

180/152

186/152

185/152

Tiburon 2.7l V6 Ported NGM Stage III +1mm valve

N/A

33mm/ 28.5mm

N/A

83/80

121/123

156/166

186/180

207/185

220/189

227/192

Tiburon 2.7l V6 Ported NGM Stage IV +1mm valve

N/A

33mm/ 28.5mm

N/A

237/212

Jaguar

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

4.4l DOHC Ported Kelford Cams

N/A

1.46/1.30

N/A

46/39

92/87

142/135

184/171

215/197

233/205

239/210

245/214

252/219

258/222

Lotus

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

TC Ported CNC Heads UK

N/A

1.562/1.496
100mm
No Pipe

N/A

23/-

49/42

76/-

104/96

127/-

143/125

157/-

168/139

175/-

178/143

Mazda

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

1.6

N/A

31mm/ 26.2mm

N/A

72/-

133/-

166/-

172/-

177/-

1.6 - Import Machine Service

N/A

31mm/ 26.2mm

N/A

68/64

129/119

160/148

166/151

170/154

172/155

174/157

1.6 - Import Machine Service Ported

N/A

76/70

140/123

179/173

189/173

193/178

198/182

202/184

1.6 MX5 MK1 Sabre Heads

N/A

31mm/ 26.2mm
-
No Pipe

N/A

34/28

67/57

99/83

130/115

153/137

167/148

176/153

183/155

187/157

1.6 MX5 MK1 Ported Sabre Heads

N/A

32mm/ 27.2mm
-
No Pipe

N/A

38/31

75/70

113/104

150/134

181/149

199/157

209/162

215/164

220/168

1.8 MX5 Late Sabre Heads

N/A

33mm/ 28mm
82mm
No Pipe

N/A

36/28

72/61

112/91

147/122

173/141

189/154

199/160

205/163

208/167

1.8 MX5 Late Light Intake Porting Sabre Heads

N/A

33mm/ 28mm
82mm
No Pipe

N/A

37/28

73/61

112/91

146/122

175/141

198/154

208/160

218/163

225/167

1.8 MX5 Late Comp Intake Porting Sabre Heads

N/A

34mm/ 28mm
82mm
No Pipe

N/A

38/28

74/61

111/91

149/122

185/141

210/154

226/160

234/163

241/167

1.8 MX5 Late Larger Bore Porting Sabre Heads

N/A

34mm/ 29mm
84mm
No Pipe

N/A

39/34

79/80

119/119

158/153

192/172

215/186

229/193

237/198

240/201

1.8

N/A

33mm/ 28mm

N/A

81/50

153/93

195/120

207/126

1.8 Miata Alaniz Cyl Heads

N/A

33mm/ 28mm

N/A

38/31

76/64

114/95

149/121

175/134

188/143

196/148

200/155

200/157

202/159

1.8 Mild Port

N/A

33mm/ 28mm

N/A

83/51

159/97

208/127

232/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

2.0 Ported Alum

127/74

33mm/ 27.5mm

FE3

N/A

44mm/36mm
-
Pipe

N/A

103/106

136/137

160/169

180/186

189/191

226/194

234/194

FE3 Ported Level 3 Polk

N/A

Stock
-
Pipe

N/A

141/104

175/143

194/177

211/203

226/219

241/225

251/230

255/-

BP1800 Mild Port Kelford Cams

N/A

1.30/1.10

N/A

39/29

78/60

119/94

152/121

181/142

198/153

206/159

214/163

220/165

223/168

Mercedes

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

C36 AMG Twin Turbo 24v Sabre Heads

N/A

35mm/31mm
-
No Pipe

N/A

41/36

82/81

122/135

159/167

186/180

202/188

214/190

220/194

225/195

228/196

C36 AMG Twin Turbo 24v Ported Sabre Heads

N/A

35mm/31mm
-
No Pipe

N/A

41/37

82/81

121/134

161/187

191/203

215/211

232/218

238/220

243/224

246/229

600cc Smart Car Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

13/11

26/23

39/34

52/43

62/51

67/55

68/59

70/61

71/63

600cc Smart Car Ported Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

13/11

26/23

39/35

54/47

67/58

74/64

75/69

76/70

78/71

700cc Smart Car Sabre Heads

N/A

30mm/-

N/A

14/-

27/-

42/-

57/-

63/-

66/-

68/-

70/-

72/-

700cc Smart Car Ported Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

14/11

28/22

42/36

58/51

71/64

71/68

72/69

74/69

76/68

_Mercedes

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

200 Cdi 16v NPS

N/A

30.2mm/ 28.5mm
-
No Pipe

N/A

45/56

87/102

125/134

149/154

158/162

164/168

MGB

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

N/A

1.565/1.344

N/A

1.565/1.344

N/A

1.625/1.344

49/35

73/50

93/64

109/74

118/81

124/86

129/90

132/91

134/93

C Modified Exhaust

N/A

1.625/1.344

49/43

93/78

118/90

129/97

134/101

N/A

1.565/1.344

45/33

68/50

86/59

92/73

104/78

107/81

108/83

110/84

110/85

Aluminum Replacement

N/A

1.625/1.344

N/A

51/36

71/56

90/72

103/79

111/83

113/87

116/89

117/90

118/93

N/A

Stock

N/A

45/35

54/43

73/52

90/61

99/66

108/69

113/72

115/72

115/71

Mitsubishi

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Eclipse SOHC

N/A

240/125

Eclipse SOHC CNC M2 Race Systems

N/A

35.25mm/ 25.7mm
3.575

N/A

275/195

4G63 Gen I

N/A

34mm/ 30.5mm

N/A

229/187

237/188

4G63 Gen I '89-94 CNC M2 Race Systems

N/A

35mm/ 30.5mm
3.575

N/A

251/202

283/240

284/249

286/260

4G63 Alaniz Cyl Heads

N/A

34mm/ 30.5mm

N/A

77/75

117/117

154/151

187/174

206/189

216/197

220/199

221/200

223/202

4G63 Ported Level 4 Polk

N/A

35mm/-

N/A

106/-

161/-

188/-

241/-

270/-

298/-

309/-

320/-

334/-

346/-

357/-

4G63 AMS SF600

N/A

34mm/ 30.5mm

N/A

81/67

119/105

153/138

183/173

201/192

209/203

211/208

205/209

206/211

4G63 Ported AMS SF600

N/A

34mm/ 30.5mm

N/A

107/88

151/134

189/193

222/229

244/245

258/249

269/255

274/261

277/265

4G63 1G Ported Fox Lake SF600

N/A

280/-

289/-

291/-

4G63 2G Ported Fox Lake SF600

N/A

272-

281/-

287/-

N/A

34mm/30.5mm

N/A

78/84

150/170

204/205

218/206

225/-

1G Mild Port

N/A

83/-

157/-

222/-

235/-

244/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1G Ported

N/A

275/-

1G Ported Mike +1mm valves

N/A

35mm/31.5mm

N/A

87/78

169/166

230/208

257/227

270/239

N/A

34mm/30.5mm
3.37
No Pipe

N/A

80/73

155/146

211/181

227/183

229/183

2G Ported

N/A

-
3.37
No Pipe

N/A

91/73

173/147

226/210

254/234

269/240

EVO 4G63 CHW Alum

N/A

34mm/30.5mm
-
No Pipe

43.3

74/75

147/142

195/176

200/179

196/182

198/181

EVO 4G63 Ported CHW Alum

N/A

35mm/31.5mm
-
No Pipe

87/85

164/159

215/211

239/227

246/229

252/231

EVO Ported Fox Lake SF600

N/A

265-

276/-

280/-

EVO 1 Sabre Heads JS

N/A

34mm/30.5mm

N/A

80/72

122/120

161/163

197/189

225/198

238/202

246/205

251/205

252/205

EVO 1 Ported Sabre Heads SF110

N/A

34mm/31.5mm

N/A

78/79

118/132

159/172

197/194

225/207

240/219

251/224

257/227

261/231

EVO 4G63 Cosworth

N/A

34mm/ 30.5mm

N/A

282/257

EVO 4G63 Ported Cosworth

N/A

335/282

EVO 8 4G63 David B

N/A

34mm/30.5mm

N/A

177/135

221/197

224/218

228/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

EVO 9 Kelford Cams

N/A

34mm/ 30.5mm

N/A

81/70

122/110

158/142

188/162

211/175

225/186

236/192

239/196

EVO 9 Mild Port Kelford Cams +1mm valves

N/A

35mm/ 31.5mm

N/A

89/81

131/121

169/160

200/179

227/193

245/204

257/213

266/221

EVO 9 CNC Heads UK

N/A

1.377/1.24
100mm
Pipe

N/A

77/72

115/-

154/161

188/-

211/202

219/-

222/219

226/-

227/226

EVO 9 Ported CNC Heads UK

N/A

1.377/1.24
100mm
Pipe

N/A

89/85

133/-

177/186

213/-

240/239

263/-

278/271

286/-

291/294

EVO IX Ported AMS +1mm valves SF600

N/A

35mm/ 31.5mm

N/A

107/88

151/134

189/193

222/229

244/245

258/249

269/255

274/261

277/265

EVO X AMS SF600

N/A

34mm/ 30.5mm

N/A

101/74

147/128

186/157

216/161

235/183

252/186

266/189

275/191

280/193

EVO X Ported AMS

N/A

97/86

139/141

183/199

225/226

251/233

274/235

293/238

305/239

315/240

EVO X 4B11 David B

N/A

34mm/ 30.5mm

N/A

141/142

202/197

242/212

256/219

EVO X 4B11

N/A

34mm/ 30.5mm

N/A

85/71

131/121

173/154

208/170

231/177

250/181

265/183

273/185

277/187

EVO X 4B11 Mild Ported Kelford Cams

N/A

34mm/ 30.5mm

N/A

86/80

131/127

173/157

209/178

235/189

256/194

272/197

283/198

292/200

G54B Ported Marnal

N/A

1.80/1.50

N/A

58/51

114/91

170/118

211/141

223/155

229/160

NT PPE LLC

N/A

84/73

169/156

220/185

233/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

NT Port PPE LLC

N/A

91/96

175/183

242/211

260/219

N/A

86-93/77-80

165-179/151-164

223-230/191-200

246-262/195-216

249-256/196-219

VR4

N/A

95/98

174/168

226/201

240/209

249/212

Nissan

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Datsun 1600 Road Race Ported Tri-Mark

N/A

1.69/1.38

N/A

64/61

130/100

171/128

196/147

205/155

207/159

FJ20 Ported Kelford Cams

N/A

1.38/1.22

N/A

88/78

133/119

170/149

209/186

235/202

255/206

268/211

279/215

285/215

FJ20 Race Ported Kelford Cams

N/A

92/87

146/147

188/171

225/189

254/201

278/208

293/213

304/215

315/217

'95 KA24DE Aaron

N/A

36.6mm/ 31.3mm

N/A

99/76

171/144

223/174

242/183

244/184

'95 KA24DE Street Port Aaron

N/A

36.6mm/ 31.3mm

N/A

86/85

166/137

225/173

255/184

260/188

KA24DE

N/A

36.6mm/ 31.3mm

N/A

156/147

199/170

225/182

248/196

248/201

KA24DE Ported BMC

N/A

166/151

227/182

260/192

277/199

289/208

300/218

305/222

310/225

KA24DE Ported Cervasa

N/A

37.6mm/ 32.3mm

N/A

122/106

228/193

316/253

332/278

379/281

QR25

N/A

213/180

RB25 Ported Bullet Cylinder Heads

N/A

34.12mm/ 29.6mm

N/A

91/76

172/136

228/176

261/188

272/192

281/194

286/196

RB26 Ported Bullet Cylinder Heads

N/A

34.6mm/ 30.15mm

N/A

97/83

179/146

247/173

280/188

285/192

RB26DETT Ported Kelford Cams

N/A

1.35/1.18

N/A

88/80

129/126

164/159

198/184

228/196

252/205

269/211

282/217

289/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

RB30 Ported Bullet Cylinder Heads

N/A

Stock

N/A

53/57

106/50

152/124

193/128

196/130

198/131

202/132

RB30 Ported Bullet Cylinder Heads

N/A

1 mm OS

N/A

54/56

108/51

158/126

199/131

201/133

207/134

212/136

N/A

34.15mm/ 30.15mm

N/A

210/160

SR20DE Alaniz Cyl Heads

N/A

34.15mm/ 30.15mm

N/A

79/70

121/105

156/131

181/142

194/149

206/152

213/154

215/154

217/154

SR20DE Ported Alaniz Cyl Heads Exhaust +.5mm

N/A

34.65mm/ 30.65mm

N/A

81/71

122/105

158/133

188/152

207/163

217/169

225/173

231/176

234/177

SR20VE Knight Engines

N/A

85/85

158/146

219/170

253/175

262/178

SR20VE Ported Knight Engines

N/A

92/88

175/157

246/209

283/232

302/238

SR20 Ported Kelford Cams

N/A

1.42/1.14

N/A

77/78

119/114

156/142

190/166

221/181

246/191

265/198

278/202

288/205

SR20 S13

N/A

34.15mm/ 30.15mm

N/A

89/82

161/137

200/151

215/156

216/156

SR20 S13 Ported

N/A

34.15mm/ 30.15mm

N/A

93/86

173/154

220/177

250/194

259/198

SR20 S13 Ported Bullet Cylinder Heads

N/A

34.15mm/ 30.15mm

N/A

94/87

170/155

223/177

251/194

260/198

VH41 V8 Kelford Cams

N/A

1.50/1.30

N/A

92/83

139/123

183/160

217/186

234/199

249/206

257/211

263/215

269/216

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

VH41 V8 Ported Kelford Cams

N/A

1.50/1.30

N/A

97/84

149/138

196/176

225/199

249/208

265/216

277/221

285/222

288/226

300Z VG35 Ported

N/A

62/53

119/99

163/115

181/128

186/132

194/-

350Z VQ35 M2 Race Systems

N/A

37.15mm/ 31.35mm
3.575

N/A

144/106

189/138

223/152

243/158

254/161

261/163

266/163

270/163

271/164

350Z VQ35 CNC M2 Race Systems

N/A

37.15mm/ 31.35mm
3.575

N/A

96/71

144/109

189/147

226/170

259/190

280/202

296/209

310/212

319/214

325/215

_Nissan

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

CA18DETT Ported /Andre' Norrback

N/A

34mm/28mm
85mm
No Pipe

N/A

63/52

122/100

178/133

223/135

251/136

264/139

269/139

Olds

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds 215 Dan Jones Alum

N/A

1.525/1.35

N/A

43/35

85/65

116/77

128/81

134/84

136/84

Olds 215 Dan Jones Ported Alum

N/A

1.525/1.35

N/A

48/36

95/73

124/96

150/110

165/119

168/122

Olds 215 Dan Jones Ported Alum

N/A

1.62/1.40

N/A

51/45

104/76

146/99

168/114

170/124

174/127

Olds 215 Ported Bill JonesAlum

N/A

1.60/1.418

N/A

54/43

110/81

136/108

149/120

154/126

Olds Iron

177/133

N/A

207/162

Olds 350 5 MID-AM Performance Iron

N/A

131/92

180/123

205/138

222/144

234/148

Olds 350 6 MID-AM Performance Iron

N/A

140/95

186/129

222/142

228/147

233/153

Olds 350 7A Iron

N/A

1.875/1.562

N/A

55/40

105/75

148/105

170/135

180/145

Olds 350 7A Ported Knowlton Iron

N/A

2.00/1.625

N/A

272/180

Olds 350 7&7A MID-AM Performance Iron

N/A

140/99

186/126

208/139

222/148

226/152

Olds 350 8 MID-AM Performance Iron

N/A

1.875/1.625

N/A

144/108

197/114

220/121

229/125

230/131

Olds 350 8 Ported MID-AM Performance Iron

N/A

2.00/1.68

N/A

160/116

220/142

249/161

261/170

272/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds 403 4A MID-AM Performance Iron

N/A

2.00/1.50

N/A

144/92

199/111

218/123

226/128

228/130

Olds 403 4A Ported MID-AM Performance Iron

N/A

2.00/1.68

N/A

163/112

224/140

248/152

265/166

272/179

Olds A MID-AM Performance Iron

N/A

2.07/1.625

N/A

84/54

159/101

208/135

233/151

250/160

259/169

Olds B MID-AM Performance Iron

N/A

2.07/1.625

N/A

85/50

159/99

209/139

232/146

250/158

258/163

Olds C Iron

N/A

2.07/1.625

N/A

162/99

211/133

233/145

250/158

259/162

Olds C Iron

N/A

2.08/1.68

N/A

230/162

Olds C Ported Brazed Center Divider SF600 Iron

N/A

2.07/1.68
4.155

N/A

50/52

115/97

176/130

213/152

244/167

257/175

Olds C Ported Iron

N/A

220/155

250/175

275/205

290/220

Olds C Ported Zoltan Iron

N/A

2.072/1.71

N/A

78/61

149/115

199/152

236/178

259/209

279/218

Olds C Ported J S Machine Iron

N/A

2.07/1.71
4.200
No Pipe

N/A

100/78

157/131

192/164

252/182

277/190

288/193

Olds C Ported J S Machine Iron

N/A

2.07/1.71
4.200
No Pipe

N/A

94/84

162/136

216/171

259/191

289/202

307/206

Olds C Ported Rocket Ranch Iron

N/A

172/109

240/157

262/174

272/188

279/197

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds D MID-AM Performance Iron

N/A

2.07/1.625

N/A

92/50

164/98

207/133

228/147

239/157

245/166

Olds E MID-AM Performance Iron

N/A

2.07/1.625

N/A

89/48

156/92

215/127

243/147

250/158

253/166

Olds G Iron

N/A

2.00/1.625

N/A

190/140

200/150

205/155

Olds G MID-AM Performance Iron

N/A

2.07/1.625

N/A

91/47

158/96

205/129

225/145

236/156

239/161

Olds 455 J MID-AM Performance Iron

N/A

2.00/1.625

N/A

81/49

144/89

205/121

222/125

226/126

226/127

Olds 455 J Ported MID-AM Performance Iron

N/A

2.071/1.71

N/A

166/114

229/148

252/165

264/175

271/185

Olds Ka MID-AM Performance Iron

N/A

2.07/1.625

N/A

85/47

157/94

209/126

224/144

236/156

239/161

Edelbrock Performer RPM 60519 SF1020 Alum

188/106

2.072/1.68

67/54

131/102

195/137

245-247/163

278-256/179

268-259/188

Edelbrock 6051 Ported Alum

N/A

315/218

Edelbrock 60519 CCM Alum

188/-

2.072/1.68

N/A

70/53

137/95

195/132

234/168

240/185

245/194

Edelbrock 60519 Dick Miller Out of Box Alum

N/A

2.072/1.68

N/A

65/53

136/103

197/139

242/167

243/182

250/189

253/192

Edelbrock 60519 Ported Dick Miller Alum

N/A

2.072/1.68

N/A

79/68

146/115

202/151

247/174

284/190

300/203

315/209

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Edelbrock 60519 CNC Dick Miller Alum

N/A

72/64

149/123

212/164

269/195

304/211

322/219

337/224

Edelbrock KTRE CNC Stage III Alum

N/A

2.072/1.68

N/A

283/211

296/214

310/214

Edelbrock KTRE CNC Stage V Alum

244/-

2.19/1.68

311/211

325/214

Edelbrock Ported Raised roof Bad Port Mondello Alum

N/A

2.15/-
4.155

N/A

78/-

146/-

224/-

290/-

349/-

379/-

395/-

396/-

390/-

Bulldog Performance Alum

212/-

2.15/1.75
4.16

N/A

79/67

141/116

204/155

244/180

279/204

287/216

292/226

Bulldog Performance Ported Creative Flow Management Alum

250/162

2.30/1.75
4.375
No Pipe

85-83/70

155-158/114

219-220/170

270-278/202

316-325/223

338-350/243

353-373/258

361-385/270

372-394/275

Dick Miller / Bulldog Performance - Small Block

N/A

2.08/1.690

N/A

73/57

133/93

180/131

221/169

246/182

258/204

264/216

271/221

Dick Miller / Bulldog Performance - Street Strip Alum

240/-

2.15/1.75

N/A

73/57

137/99

193/137

239/173

272/201

291/220

302/233

308/240

Dick Miller / Bulldog Performance Alum

255/-

300/-

Dick Miller / Bulldog Performance Alum

275/-

340/-

Dick Miller / Bulldog Performance (EMC) Offset Pushrod Alum

N/A

2.25/1.75

N/A

385/-

Mondello / Knowlton Alum

375/-

2.25/1.68

329/-

350/-

380/-

401/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Rocket Racing Alum

213/123

2.15/1.625
4.25
Pipe

100/56

156/105

212/149

272/173

296/191

312/200

Rocket Racing Alum

210/140

2.15/1.68
4.25
1.75" Pipe

100/79

156/117

212/158

272/188

296/207

312/218

Rocket Racing Out of Box Alum

212/-

2.15/1.68

N/A

139/121

193/163

242/196

266/210

278/225

Rocket Racing Ported Alum

229/-

2.15/1.68

N/A

160/-

225/-

275/-

303/-

319/-

Rocket Racing Alum

N/A

2.15/1.68
4.175
No Pipe

192/137

252/165

280/184

303/201

328/203

Rocket Racing Ported RR Cylinder Heads Alum

N/A

2.19/1.71
4.18

N/A

370/287

Rocket Racing / Wenzler Mild Cleanup Alum

190/113

2.07/1.62
4.125

N/A

260/170

Rocket Racing / Wenzler Street / Strip Ported Alum

190/113

2.11/1.77
4.125

N/A

300/220

Rocket Racing / Wenzler Ported Alum

N/A

350/-

Rocket Racing / Wenzler Ported Alum

N/A

2.15/1.77

N/A

134/112

206/163

263/212

312/226

351/240

346/247

351/250

Z Head Ported Stage 1 Brad Wise I-52 E-45 SF600 Alum

N/A

2.225/-
4.20

134/-

211/-

273/-

319/-

330/-

340/-

341/-

342/-

Z Head Ported Stage 2 Brad Wise I-52 E-45 SF600 Alum

260/-

2.225/1.60
4.20
No Pipe

144/97

213/135

275/193

319/224

343/244

360/261

359/266

359/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Z Head Ported Stage 3 Brad Wise I-52 E-45 SF600 Alum

260/-

2.225/1.60
4.20
No Pipe

143/97

214/142

278/180

328/222

362/251

371/268

380/277

388/282

Z Head Ported Stage 4 Brad Wise I-52 E-45 SF600 Alum

N/A

2.225/-
4.20

167/-

239/-

298/-

350/-

392/-

408/-

416/-

432/299

Quad 4

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.350

.400

.450

.500

.550

.600

Average

'99 2.4l

N/A

Stock

N/A

90/81

156/119

218/126

259/129

278/135

'99 2.4l Ported

N/A

Stock

N/A

107/80

162/140

224/173

268/180

282/183

086 Peak Performance

N/A

Stock
-
Pipe

N/A

73/57

149/125

222/168

251/176

267/180

274/183

-/206

086 Ported Kevin Davis

N/A

-
-
Pipe

N/A

84/131

165/140

227/182

250/194

269/202

286/207

-/237

456 Peak Performance

N/A

Stock
-
Pipe

N/A

77/68

156/135

223/164

249/168

261/171

265/173

-/198

955 Peak Performance

N/A

Stock
-
Pipe

N/A

97/68

165/128

230/149

234/152

239/154

240/160

-/171

Opel / Vauxhall

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1.6 Bowls Blended Bob Legere

N/A

1.80/1.55

N/A

52/52

70/70

89/86

112/102

131/110

147/119

160/125

167/133

171/136

172/139

174/140

1.6 Comp Ported Bob Legere

N/A

1.80/1.55

N/A

59/54

87/73

109/89

131/104

151/121

173/136

182/151

199/159

207/163

210/170

1.9 Bob Legere

N/A

1.57/1.34

N/A

47/38

74/55

99/70

120/85

136/92

142/99

144/104

146/105

147/107

1.9 Street Ported Calvin SF600

N/A

1.84/1.50

N/A

98/90

148/122

184/147

191/155

1.9 Street Ported Bob Legere

N/A

1.72/1.50

N/A

52/52

82/80

107/100

129/117

147/129

159/147

176/154

186/160

176/162

1.9 Comp Ported Bob Legere

N/A

1.85/1.50

N/A

63/52

89/77

119/90

145/114

166/127

185/145

201/161

208/172

211/177

215/180

2.2 Bob Legere

N/A

45mm/ 40mm

N/A

70/55

95/75

125/94

149/109

171/120

182/125

189/125

197/125

199/129

201/129

2.2 Ported Bob Legere

N/A

1.88/1.60

N/A

67/60

95/86

124/107

149/124

169/136

191/147

211/156

227/180

238/191

241/191

2.2 Street Ported Bob Legere

N/A

1.94/1.60

N/A

67/52

95/76

124/89

149/110

169/128

193/144

214/159

233/169

244/171

244/173

244/176

2.4 Bob Legere

N/A

45mm/ 40mm

N/A

60/47

84/70

114/91

141/115

166/131

185/144

182/156

185/169

2.4 Street Ported Bob Legere

N/A

1.94/1.60

N/A

60/52

87/77

115/98

141/121

167/140

188/151

212/167

228/178

233/184

236/189

241/193

Vauxhall/Opel 1.8E Sabre Heads

N/A

41mm/ 35mm
85mm
No Pipe

N/A

25/18

48/34

74/48

95/60

111/73

126/82

139/90

148/96

153/100

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Vauxhall/Opel 1.8E Ported Sabre Heads

N/A

41mm/ 36mm
85mm
No Pipe

N/A

24/20

50/44

74/65

97/81

119/95

138/109

159/116

169/120

171/125

Vauxhall/Opel XE 16V Sabre Heads

N/A

33mm/ 29mm
86mm
No Pipe

N/A

39/34

80/77

121/123

159/150

176/154

187/163

192/165

196/166

199/167

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 1

N/A

33mm/29mm
86mm
No Pipe

N/A

39/35

79/73

120/111

155/146

184/163

198/169

206/173

214/174

221/176

225/178

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 2

N/A

34mm/29mm
86mm
No Pipe

N/A

40/35

83/73

125/111

163/146

190/163

210/169

224/173

231/174

232/176

-/178

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 3

N/A

34mm/31mm
88mm
No Pipe

N/A

40/38

83/80

126/127

166/159

198/184

219/191

234/196

241/198

247/198

252/-

Vauxhall/Opel XE 16V CNC Heads UK

N/A

33mm/ 29mm
100mm
No Pipe

N/A

42/-

83/77

128/-

159/161

189/-

203/176

212/-

220/179

227/-

231/181

Vauxhall/Opel XE Ported 16V CNC Heads UK

N/A

34mm/ 30mm
100mm
No Pipe

N/A

43/-

87/86

131/-

176/192

212/-

238/212

252/-

265/225

276/-

283/224

Vauxhall/Opel 2.0 Ecotec Sabre Heads

N/A

32mm/29mm
86mm
No Pipe

N/A

38/33

78/73

122/121

156/141

179/147

191/148

200/149

204/152

209/-

Vauxhall/Opel 2.0 Ecotec Ported Sabre Heads

N/A

32mm/29mm
86mm
No Pipe

N/A

37/35

80/81

123/130

162/157

186/168

201/173

212/177

217/181

220/184

-/185

Vauxhall/Opel VX220 CNC Heads UK

N/A

1.381/1.104
100mm
No Pipe

N/A

39/-

76/69

118/-

159/139

196/-

220/149

234/-

241/152

243/-

245/154

Vauxhall/Opel VX220 Ported CNC Heads UK

N/A

1.381/1.104
100mm
No Pipe

N/A

39/-

79/69

116/-

157/136

197/-

226/174

248/-

259/190

263/-

266/197

_Opel

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

2.4 AutoSport Ported /Andre' Norrback

N/A

45mm/40mm
98mm
No Pipe

N/A

45/32

89/72

126/103

158/129

186/144

203/150

211/152

Kadett 12S

N/A

32mm/27mm

N/A

25/17

50/39

66/52

74/57

76/60

76/61

Kadett 12S Ported Stardust

N/A

34mm/29mm

N/A

35/24

69/46

91/60

105/67

112/72

115/74

C20XE Coscast NPS

N/A

33mm/29mm
-
No Pipe

N/A

62/61

118/132

164/159

187/164

195/166

198/168

Peugeot

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1.4l 8v TU3HJ2 QEP Heads

N/A

22/-

39/-

55/-

70/-

80/-

86/-

88/-

89/-

90/-

91/-

1.4l 8v TU3HJ2 Ported QEP Heads

N/A

23/-

44/-

58/-

73/-

87/-

99/-

107/-

109/-

111/-

_Peugeot

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

Average

1.8l 8v TU5JP NPS

N/A

39.36mm/ 31.5mm

N/A

38/30

74/56

106/79

122/89

131/93

136/95

Pontiac

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 4X-3H Ported SD Performance Iron HPP

N/A

2.11/1.77

N/A

76/66

141/113

195/147

220/166

241/184

249/194

Pontiac 4X-7H Iron HPP

153/140

2.11/1.66
-
Pipe

83/47

142/96

185/131

204/147

212/152

Pontiac 4X Ported Iron

N/A

91/62

157/121

206/162

234/202

246/217

255/226

Pontiac 5C-8 Iron HPP

153/138

2.11/1.66
-
Pipe

100

81/48

140/97

186/133

204/149

212/154

Pontiac 5C Iron

151/138

2.11/1.66

91-98

222/171

Pontiac 5C SD Performance Ported SF600 Iron

N/A

260/-

Pontiac 6H-6 Iron HPP

151/-

2.11/1.66
-
Pipe

124

80/51

141/101

175/134

198/148

205/155

Pontiac 6X-4 Iron HPP

153/-

2.11/1.66
-
Pipe

79/47

139/92

187/131

202/147

211/154

Pontiac 6X-4 Ported Iron

N/A

2.11/1.66

89/48

143/90

165/122

222/146

238/156

244/163

Pontiac 6X-4 Ported Jim Hand Iron

170/-

2.11/1.77

N/A

78/70

150/129

195/168

236/193

264/211

267/219

268/223

Pontiac 6X-4 '77 Ported NHRA SS Brett Voughes - Gary Hetler I-45 E-45 Iron

N/A

2.11/1.66

201/177

234/197

267/201

285/202

Pontiac 6X-4 I-30 E-45 Ported Paul Carter SF600 Iron

N/A

2.11/1.77

N/A

74/53

139/113

187/151

223/176

236/183

245/187

250/195

236/202

236/208

239/213

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 6X-8 Iron HPP

153/-

2.11/1.66
-
Pipe

79/50

142/99

186/133

205/150

214/156

Pontiac 6X-8 NPS Iron

N/A

2.11/1.63
-
No Pipe

N/A

72/46

129/94

171/129

196/149

203/161

209/167

Pontiac 6X-8 Ported NPS Iron

N/A

2.11/1.77
-
No Pipe

N/A

60/60

128/121

191/152

229/178

240/193

242/201

246/-

Pontiac 6X-8 '77 Fully Ported Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/-

N/A

78/-

145/-

198/-

229/-

241/-

253/-

258/-

263/-

267/-

271/-

Pontiac 6X-8 Ported Anderson Port Development SF1020 Iron

N/A

2.10/-
4.155

N/A

75/-

148/-

217/-

251/-

274/-

285/-

290/-

292/-

Pontiac 6X Iron

158/146

2.11/1.66

91/101

82/45

142/93

181/128

200/142

212/148

215/149

Pontiac 6X HPP Iron

N/A

2.11/1.77

88/85

153/122

206/164

221/185

232/196

Pontiac 6X Ported Iron

N/A

2.11/1.66

N/A

83/57

158/114

205/136

239/143

244/150

248/152

Pontiac 6X SD Performance Ported Cyl 1 SF600 Iron

165/-

2.11/1.77

N/A

84/59

146/117

185/155

221/180

250/200

260/212

Pontiac 6X Jim Butler Ported SF600 Iron

N/A

245/-

Pontiac 6X Jim Butler Race Ported SF600 Iron

N/A

267/-

Pontiac 12 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

153/106

219/149

256/177

271/197

293/217

299/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 13 '70 Fully Ported Flowtech - Steven Magnotti Exhaust 30 Deg Back Cut SF110 Iron

183/-

2.11/1.77
-
No Pipe

N/A

78/52

150/105

208/138

253/166

267/175

278/194

285/200

291/212

295/219

-/227

-/235

Pontiac 13 '70 Fully Ported Flowtech - Steven Magnotti Exhaust 30 Deg Back Cut SF110 Iron

183/-

2.11/1.77
-
2" Pipe

N/A

78/-

150/-

208/-

253/-

267/-

278/-

285/-

291/-

295/-

-/243

Pontiac 15 '70 Iron HPP

N/A

1.96/1.66

N/A

62/42

124/89

166/117

189/141

192/152

192/155

Pontiac 15 '70 Perf VJ Iron HPP

N/A

1.96/1.66

N/A

69/49

139/93

169/121

193/149

200/153

201/156

Pontiac 15 VJ I-30 E-45 Bob Eiler Iron

N/A

1.96/1.66
4.25 offset .125
No Pipe

N/A

73/44

139/86

178/121

192/145

193/149

193/155

195/159

197/162

Pontiac 15 Ported SD Iron

N/A

2.055/1.71

77.5

70/64

138/117

199/153

238/178

252/201

263/215

Pontiac 16 Iron

162/150

2.11/1.77

72-75

244/171

Pontiac 16 Iron

162/150

2.11/1.77

N/A

85/59

153/110

186/134

208/148

224/154

232/157

Pontiac 16 Jim Butler SF600 Iron

165/152

2.11/1.77

N/A

143/109

208/145

228/158

245/164

252/176

259/176

Pontiac 16 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

136/-

182/-

225/-

250/-

253/-

Pontiac 16 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

154/106

220/149

256/178

271/198

293/217

299/223

Pontiac 16 '68 Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

75/43

142/82

177/120

198/140

201/149

203/156

204/159

207/162

-/165

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 16 '68 Ported Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

78/47

145/109

198/147

229/172

241/180

253/187

258/194

263/203

265/208

Pontiac 17 '68 350 Ported SD SF600 Iron

174/-

2.11/1.77

73/65

149/123

205/159

238/182

260/202

268/219

Pontiac 46 Ported SD SF600 Iron

N/A

2.11/1.77
-
No Pipe

73/66

148/118

196/153

223/175

249/191

258/200

Pontiac 47 '69 Paul Carter SF600 Iron

N/A

1.96/1.66
-
Pipe

N/A

61/54

112/92

162/127

184/146

191/154

193/165

195/170

195/-

Pontiac 47 '69 Paul Carter I-45 E-45 above with larger valves SF600 Iron

N/A

2.11/1.77
-
Pipe

N/A

70/64

136/117

178/149

199/170

205/178

210/181

210/186

210/190

211/194

212/197

213/200

Pontiac 48 Ported Iron

N/A

2.11/-
4.125

N/A

76/-

140/-

194/-

222/-

247/-

254/-

Pontiac 48 Ported SD SF600 Iron

N/A

2.11/1.77

142/126

196/164

238/192

259/209

265/221

272/229

Pontiac 48 Ported Jim Robertson Iron

N/A

2.11/1.77
4.21

N/A

75/63

144/115

206/144

263/168

282/179

286/187

283/193

284/202

Pontiac 62 Iron

162/150

2.11/1.77

72-75

212/175

Pontiac 62 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.77

N/A

77/43

145/82

177/120

198/140

202/149

203/156

204/159

-/162

-/165

Pontiac 62 Ported Lloyd Elliott Iron

N/A

2.11/1.77

72-75

216/141

242/166

254/184

257/194

Pontiac 62 Paul Carter Iron

N/A

2.11/1.77
-
Pipe

N/A

68/47

132/94

179/126

195/144

197/151

201/156

203/166

205/167

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 62 Ported Paul Carter Iron

N/A

2.11/-

N/A

86/-

148/-

188/-

240/-

255/-

Pontiac 62 Ported Paul Carter Iron

N/A

2.11/-

N/A

82/-

137/-

183/-

223/-

240/-

251/-

257/-

Pontiac 62 Ported R R Automotive HPP Iron

N/A

2.11/1.77

N/A

250/165

Pontiac 62 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

295/-

Pontiac 64 HPP / Jim Butler SF600 Iron

N/A

2.11/1.77

N/A

140/116

182/144

198/149

202/162

202/175

Pontiac 64 Ported Jim Hand Iron

163/-

2.11/1.77

N/A

205/149

254/202

Pontiac 76 '65 Flowtech - Steven Magnotti SF110 Iron

N/A

1.92/1.66
4.00

N/A

62/-

114/-

160/-

169/-

174/-

177/-

Pontiac 76 '65 Bowl Ported Flowtech - Steven Magnotti 45 Deg Seat 30 Deg Back Cut SF110 Iron

N/A

1.94/1.66
4.00

N/A

58/-

126/-

176/-

197/-

Pontiac 76 '65 Fully Ported Flowtech - Steven Magnotti 45 Deg Seat 30 Deg Back Cut SF110 Iron

N/A

1.94/1.66
4.00

N/A

61/-

129/-

196/-

225/-

237/-

240/-

249/-

250/-

253/-

Pontiac 77 Iron

N/A

1.92/1.66

82/46

145/86

177/111

185/128

189/138

194/143

Pontiac 92 Mild Porting Lloyd Iron

N/A

1.92/1.66

N/A

199/132

226/154

231/168

231/176

Pontiac 93 Iron

N/A

1.92/1.66

181/119

186/130

191/135

194/140

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 96 '71 Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

76/50

135/95

177/128

199/148

204/153

206/161

208/164

210/166

Pontiac 96 '71 HRM Iron

N/A

2.11/1.77

N/A

154/110

187/150

202/165

205/182

207/184

Pontiac 96 '71 Nunzi Modified Intake HRM Iron

N/A

2.11/1.77

N/A

141/110

186/150

220/165

238/182

238/184

Pontiac 197 Iron

169/153

2.11/1.77

N/A

97/53

167/101

186/118

206/143

216/154

218/159

Pontiac 670 Iron

162/150

2.11/1.77

87/41

152/100

198/136

204/166

205/185

205/194

Pontiac 670 Paul Carter Iron

N/A

2.11/1.77
-
Pipe

82/54

149/98

193/130

208/157

211/165

212/171

213/177

214/181

215/186

215/188

218/-

Pontiac 670 Ported Shanons Engineering Iron

N/A

75/55

149/116

208/155

236/185

239/206

242/218

241/225

241/228

Pontiac 670 SD Performance Ported SF600 Iron

N/A

250/200

Pontiac 7F6 '72 HPP / Jim Butler SF600 Iron

N/A

2.11/1.77

N/A

151/120

198/148

220/168

229/182

231/188

Pontiac 7K3 '72 CCM Iron

N/A

2.11/1.77

80/51

143/96

180/125

201/142

211/162

215/168

219/171

Pontiac Ram Air III Iron

N/A

2.11/1.77

162/98

197/133

208/150

212/164

216/172

Pontiac Ram Air IV 722 ('69) Iron

187/162

2.11/1.77

65-71

225/177

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac Ram Air IV 722 ('69) Iron

187/162

2.11/1.77

65-71

235/177

Pontiac Ram Air IV 722 ('69) Ported Iron

211/-

2.11/1.77

65-71

-/195

282/-

Pontiac Ram Air IV 614 ('70) Iron

187/162

2.11/1.77

65-71

240/177

Pontiac Ram Air IV 614 Ported I-45 E-45 SF600 Iron

N/A

2.08/1.77

N/A

78/58

146/108

207/142

253/171

272/181

280/189

283/197

285/203

287/209

289/213

295/223

Pontiac Ram Air IV Minor Pocket Port Iron

N/A

2.11/1.77

N/A

232/184

Pontiac Ram Air IV KRE Ported Iron

N/A

2.11/1.77

N/A

305/-

-/250

Pontiac Ram Air V 44 Iron

N/A

2.19/1.77
4.18
No Pipe

N/A

151/86

164/117

196/145

252/164

272/176

286/185

296/190

Pontiac Ram Air V HPP Iron

N/A

2.19/1.73

N/A

324/209

Pontiac Ram Air V Ported Arrowhead Automotive SF600 Iron

274/-

2.19/1.73
4.18
No Pipe

N/A

73/57

150/109

222/152

279/186

324/210

356/229

372/234

384/239

Pontiac 455 HO '71 197 Flowtech - Steven Magnotti 3 Angle VJ Deep 60 Deg Bottom Cut SF110 Iron

N/A

2.11/-

N/A

88/-

160/-

199/-

219/-

234/-

240/-

241/-

243/-

Pontiac 455 HO '71 197 Ported I-30 Iron

N/A

2.11/-
4.155

N/A

82/-

153/-

202/-

230/-

240/-

243/-

244/-

247/-

249/-

Pontiac 455 HO '71 197 Ported Anderson Port Development I-45 Iron

N/A

2.10/-
4.155

N/A

76/-

165/-

230/-

256/-

263/-

270/-

276/-

278/-

281/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 455 SD Iron

N/A

2.11/1.77

N/A

249/161

Pontiac 455 SD Ported Bob Wise Iron

206/186

2.11/1.77

82/68

156/130

229/171

263/193

279/208

292/221

Pontiac D-Port KRE Ported Iron

N/A

285/240

Pontiac D-Port SD Performance Street Ported SF600 Iron

N/A

240/-

Pontiac D-Port SD Performance Street/Strip Ported SF600 Iron

N/A

260/-

Pontiac 10045427 Alum

460/145

2.28/1.949

252/195

324/237

378/270

405/285

432/297

Pontiac 10045427 Alum

N/A

439/327

448/332

Pontiac 10045427 Alum

N/A

2.40/1.90

N/A

470/345

AllPontiac Jon Kaase Ported Alum

N/A

2.23/1.71

420/275

DCI Motorsport Tiger 12 Deg SF600 HPP Alum

310/-

2.25/1.80
4.25

76/63

145/112

208/161

267/196

316/230

358/252

388/264

412/269

422/276

Tiger Alum

N0/A

2.25/1.80
4.375

N/A

201/-

270/-

297/-

322/-

348/-

371/-

389/-

402/-

412/-

421/-

Tiger / AP 12 Deg SF600 Alum

N/A

2.30/1.80

N/A

416/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Tiger Ported Race 12 Deg SF600 Alum

310/-

2.30/1.80

N/A

75/45

138/86

212/124

282/166

341/204

384/233

402/251

414/253

422/267

Tiger Ported Fully 12 Deg SF600 Alum

N/A

2.35/1.90

N/A

71/61

139/108

202/146

274/186

339/220

385/252

421/273

439/285

450/290

Tiger Ported Kaase (EMC - 507 ci) 12 Deg SF600 HPP Alum

N/A

2.23/1.72

N/A

161/110

248/157

317/205

366/244

392/263

410/275

421/283

Tiger Ported H&M Airflow Dynamics 12 Deg Alum

N/A

2.35/1.90

N/A

247/191

308/249

358/286

399/312

439/322

473/332

475/340

Tiger Ported Ceralli Competition Engines Alum

N/A

2.35/-
4.40

N/A

67/-

134/-

213/-

292/-

363/-

417/-

453/-

475/-

486/-

494/-

498/-

DCI Motorsport RAV Bowl Clean Up Alum

N/A

2.20/-
4.20

N/A

89/-

168/-

240/-

298/-

338/-

367/-

375/-

384/-

400/-

416/-

426/-

DCI Motorsport RAV 225 Ported Alum

N/A

2.25/-
4.20

N/A

319/-

361/-

391/-

406/-

426/-

433/-

451/-

DCI Motorsport RAV 227 Ported Alum

N/A

2.27/-
4.20

N/A

88/-

177/-

244/-

305/-

353/-

380/-

404/-

428/-

445/-

DCI Motorsport RAV 234 Ported Alum

N/A

2.34/-
4.25

N/A

80/-

150/-

220/-

289/-

366/-

405/-

440/-

459/-

470/-

483/-

496/-

Edelbrock 6057 Alum CCM

215/175

2.11/1.66

65/40

134/102

186/133

228/161

260/177

282/184

293/190

Edelbrock Performer 60579 SF1020 Alum

215/175

2.11/1.66

72/56

138/106

198/141

239/163

264/175

275/185

Edelbrock Performer RPM 60599 SF1020 Ram Air IV Exhaust Alum

215/175

2.11/1.66

71/69

143/120

208/151

253/173

272/191

286/199

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Early ('97) Edelbrock Jim Butler Ported SF600 Alum

228/-

2.11/1.77
4.185

N/A

58/51

139/109

206/150

262/183

289/209

304/220

306/225

307/225

Edelbrock Jim Butler Ported SF600 Alum

N/A

2.11/1.77
4.200

152/120

212/159

262/197

297/219

310/226

315/233

Edelbrock Jim Butler Ported HPP SF600 Alum

N/A

2.11/1.77

72/52

148/106

219/158

277/197

314/223

326/236

328/241

Edelbrock Chapman Ported Alum

232/-

2.20/1.77
-
No Pipe

71/57

148/130

219/174

272/214

303/221

321/228

325/233

Edelbrock S/P Ported ET Performance Alum

235/-

2.20/1.77
4.18

73/54

149/100

226/145

279/179

324/239

347/254

346/264

Edelbrock KRE Ported Alum

N/A

2.11/1.77

N/A

328/260

Edelbrock CNC Bruce RRE SF600 Alum

235/-

2.15/1.65

75/53

150/108

211/149

264/184

306/199

323/210

324/226

327/229

Edelbrock Ported Steve C SF600 Alum

227/-

2.15/1.77
4.20

83/82

151/145

220/195

276/230

301/248

313/255

317/260

Edelbrock Ported Steve C SF600 Alum

234/-

2.15/1.765
4.20

71/52

151/115

228/173

282/217

312/237

324/242

329/248

Edelbrock Bowls and Port Clean up Alum

N/A

2.15/1.77

78/64

149/118

212/152

258/182

288/217

302/223

311/229

313/-

Edelbrock Ported Alum

N/A

2.15/1.77

N/A

330/250

Edelbrock Ported Bischoff (BES) Alum

N/A

2.11/1.66

325/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock SD Performance Street Ported SF600 Alum

N/A

2.11/1.77

N/A

295/-

Edelbrock SD Performance Street/Strip Ported SF600 Alum

N/A

2.19/1.77

N/A

310/-

Edelbrock SD Performance Race Ported SF600 Alum

235/-

2.19/1.77
4.185
Pipe

77/66

156/123

215/178

266/217

303/238

321/247

333/252

Edelbrock SD Performance Race Ported SF600 Alum

247/-

2.20/1.74
4.25

N/A

350/-

Edelbrock SD Performance Race Ported (Offset Rockers) SF600 Alum

267/-

2.25/1.74

N/A

75/63

149/126

216/173

270/211

316/238

347/258

366/275

-/286.8

Edelbrock SD Performance SF600 Alum

N/A

2.19/1.77
4.185
Pipe

75/67

147/128

212/181

262/218

297/235

319/244

332/249

Edelbrock Ported DCI (EMC) Alum

N/A

280/196

320/224

350/245

370/259

Edelbrock Ported Jim Robertson Alum

N/A

2.19/1.77

N/A

78/-

143/-

211/-

280/-

326/-

349/-

360/-

359/-

Edelbrock Ported Anderson Port Development Alum

N/A

2.125/-
4.155

N/A

73/-

130/-

196/-

251/-

298/-

331/-

349/-

357/-

364/-

Edelbrock Ported Anderson Port Development Alum

N/A

2.125/-
4.31

N/A

81/-

141/-

206/-

259/-

308/-

342/-

358/-

370/-

374/-

Edelbrock Ported Calvin Hill I-45 E-45 BC Alum

N/A

2.19/1.77
4.21

N/A

78/65

161/117

230/165

279/219

317/254

344/277

350/286

359/286

Edelbrock Ported H&M Airflow Dynamics Alum

N/A

2.19/-
4.35

N/A

153/-

232/-

297/-

341/-

368/-

374/-

372/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM CNC 615xx SF110 CCM Alum

N/A

2.11/1.66

66/56

147/115

206/156

235/178

259/186

277/197

Edelbrock D Port 61589 SF1020 Alum

195/145

2.11/1.66
4.15

65/52

136/103

199/130

237/145

255/151

262/157

263/159

Edelbrock D Port 61569 SF1020 Alum

195/145

2.11/1.66
4.15

64/52

139/104

200/131

235/145

249/151

256/156

258/157

Edelbrock D Port HPP Alum

185/145

2.11/1.66

N/A

272/181

Edelbrock D Port Jim Butler Ported SF600 Alum

N/A

2.11/1.77
4.200

65/72/87

290/220

Edelbrock D Port Jim Butler Ported I-45 E-45 87 cc Milled Alum

N/A

2.11/1.77

142/129

206/170

254/206

299/227

307/238

312/244

Edelbrock D Port Jim Butler -R Ported I-45 E-45 Alum

N/A

2.19/1.77
4.200

71.5

145/121

211/164

267/199

301/221

310/229

312/234

Edelbrock W/P SD Performance Race Ported SF600 Alum

267/-

2.25/1.74

N/A

370/-

Edelbrock W/P Ported SF1020 Alum

N/A

2.25/-
4.375

N/A

69/-

136/-

201/-

258/-

309/-

348/-

370/-

381/-

390/-

392/-

Edelbrock W/P Ported ET Performance Alum

260/-

2.20/1.77
4.350

76/54

159/100

227/145

291/179

338/239

352/254

365/264

Edelbrock W/P Ported Jim Butler SF600 Alum

275/-

2.19/1.77

N/A

370/268

Edelbrock W/P Ported Alum

N/A

2.18/1.76

N/A

97/71

169/125

228/185

278/227

317/260

339/280

357/287

366/290

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock W/P Ported Ondo Performance Alum

255/-

2.18/1.77
-
2" Pipe

97/71

169/137

228/200

278/260

317/282

339/285

357/292

366/295

375/295

Edelbrock W/P Ported Anderson Port Development SF1020 Alum

N/A

2.125/-
4.31

N/A

69/-

145/-

218/-

279/-

328/-

360/-

365/-

374/-

378/-

384/-

Edelbrock W/P Ported Anderson Port Development SF1020 Alum

N/A

2.19/-
4.31

N/A

75/-

158/-

234/-

295/-

349/-

377/-

390/-

393/-

396/-

399/-

Edelbrock Victor HP 12 Deg HPP Alum

N/A

2.19/1.77

N/A

400/270

Edelbrock PRO Port Ported John Marcella Alum

N/A

2.30/1.68

N/A

243/-

318/-

380/-

434/-

447/-

460/-

466/-

460/-

Edelbrock PRO Port (EMC '13) Ported Speier Alum

N/A

2.30/1.60
4.31
Pipe

N/A

161/108

225/150

282/186

330/208

366/232

382/241

385/251

387/257

388/260

Edelbrock PRO Port (EMC '13) Ported Speier Alum

N/A

2.35/1.65
-
Pipe

N/A

163/113

232/156

283/194

338/229

363/240

373/247

375/250

377/253

Edelbrock PRO Port (EMC '14) Ported Speier I-45 E-50 Alum

N/A

2.35/1.65
-
No Pipe

N/A

170/117

240/150

300/176

352/197

379/228

388/241

390/250

392/256

394/260

H&M Airflow Dynamics Ram Air V Based Billet Alum

N/A

2.35/1.75

N/A

155/108

231/175

319/242

401/293

456/323

488/339

510/345

517/352

520/-

KRE D-Port CCM Alum

185/150

2.11/1.66

N/A

67/55

148/100

198/134

227/154

235/170

236/180

234/183

KRE D-Port Tom Cyl 1 Alum

N/A

2.11/1.66
4.18
Pipe

N/A

71/56

131/107

177/143

215/167

241/187

259/203

KRE D-Port Tom / Joe Sherman Ported SD Performance 290 Alum

N/A

2.11/1.66

N/A

69/56

147/113

203/146

244/169

272/181

291/190

291/196

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE D-Port Westech Alum

N/A

2.11/1.66

N/A

63/57

135/108

187/137

209/162

220/171

226/178

KRE D-Port Out of Box VJ Paul Carter Alum

N/A

2.11/1.66

N/A

62/56

128/111

180/141

220/163

232/170

241/173

244/176

247/178

248/179

KRE D-Port Alum

180/157

2.11/1.66
-
Pipe

N/A

92/85

152/141

201/182

236/210

256/226

263/232

KRE D-Port Ported Paul Carter SF600 Alum

N/A

2.11/1.66

N/A

65/64

132/118

187/151

236/179

258/189

276/197

291/203

298/208

298/213

KRE D-Port Ported SF600 Alum

N/A

2.11/1.66

N/A

68/54

137/103

193/136

243/157

264/165

282/171

297/179

305/186

309/190

314/195

317/202

KRE D-Port Above VJ and 1.77 exh Paul Carter SF600 Alum

N/A

2.11/1.77

N/A

71/65

137/120

201/160

251/187

273/198

291/205

303/211

311/216

316/219

319/222

320/227

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

89/68

162/119

210/178

266/208

278/226

289/240

292/244

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

88/66

165/123

216/181

278/210

299/228

308/242

312/247

KRE D-Port Ported 312 Bruce Out of Box SF600 Alum

N/A

2.11/1.66
4.25

N/A

82/-

149/-

197/-

239/-

266/-

282/-

284/-

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

85/68

164/126

216/190

286/216

302/228

318/236

324/246

KRE D-Port Ported Alum

N/A

2.19/1.66
-
Pipe

N/A

90/65

166/121

224/180

282/215

313/236

328/251

339/259

KRE D-Port Ported Dave/SD Out of Box SF600 Alum

N/A

2.19/1.66

N/A

77/58

141/117

193/151

246/176

288/197

316/211

326/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE D-Port Ported Dave/SD Reworked SF600 Alum

N/A

2.19/1.66

N/A

77/63

151/115

205/153

250/178

288/200

319/227

337/238

KRE D-Port SD Performance Race Ported SF600 Alum

197/-

2.11/1.77

N/A

290/-

KRE D-Port Ported Pushrod offset .225" Jim Robertson Alum

N/A

2.15/1.68
4.31

N/A

77/71

156/123

221/163

275/199

317/227

322/244

335/254

358/265

370/268

KRE D-Port Darby Ported Alum

N/A

2.19/1.66
-
No Pipe

N/A

77/57

149/118

202/158

249/184

296/230

319/219

339/232

347/237

KRE High-Port Alum

N/A

2.20/1.70
-
Pipe

45-56

85/71

170/129

234/179

284/221

316/248

322/263

331/270

KRE High-Port Out of Box w VJ SDTempest Alum

N/A

2.20/1.70
4.21
No Pipe

N/A

76/66

138/119

197/152

258/180

299/190

311/196

326/202

327/205

330/209

KRE High-Port Ported 1 Alum

N/A

2.20/1.70
-
Pipe

N/A

82/70

162/126

232/178

286/219

322/234

342/248

351/259

KRE High-Port Ported 2 Alum

N/A

2.20/1.70
-
Pipe

N/A

85/74

168/130

244/176

298/220

344/236

356/245

365/259

KRE High-Port Ported 3 Alum

N/A

2.25/1.75
-
Pipe

N/A

94/73

193/130

256/185

307/226

345/229

372/263

378/271

382/277

KRE High-Port Ported Calvin Hill Alum

N/A

2.20/1.70

N/A

168/90

243/140

295/182

344/214

387/239

395/246

392/254

390/263

KRE High-Port Ported Calvin Hill Alum

N/A

2.20/1.70
4.35

N/A

155/79

228/133

281/175

338/206

389/236

418/255

421/274

KRE High-Port Ported 1 Alum Rocker Shafts

N/A

2.25/1.75
-
Pipe

N/A

90/73

188/133

253/191

308/224

347/230

382/262

396/270

402/278

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE High-Port Ported 2 Alum Rocker Shafts

N/A

2.25/1.75
-
Pipe

N/A

92/73

186/137

261/196

316/228

353/235

380/264

407/272

420/276

KRE High-Port Ported Len Caverly (EMC) Alum

N/A

2.23/1.75

N/A

262/199

325/228

355/251

370/265

385/273

KRE High-Port Ported Mike Semchee (EMC) Alum

N/A

2.25/1.75

88/83

173/134

248/176

304/217

322/240

342/256

359/265

366/273

KRE High-Port Ported Dan Barton Alum

N/A

2.25/1.75
4.28

N/A

151/119

224/158

278/186

300/-

317/204

328/-

340/215

352/-

362/224

375/233

387/237

407/290

KRE High-Port Ported Dan Barton Alum

N/A

2.23/1.72
4.31

N/A

159/114

216/168

274/215

321/238

360/254

380/267

398/281

405/285

407/290

KRE High-Port Ported Dan Barton Pushrod Moved Alum

N/A

2.23/1.72
4.31

N/A

166/114

227/168

294/215

357/238

400/254

426/267

432/281

434/285

433/290

KRE High-Port Ported Jim Robertson - SDTemp Alum

N/A

2.20/1.70
4.21
No Pipe

N/A

82/66

152/126

222/168

297/201

350/242

368/257

374/264

374/267

378/271

382/-

KRE High-Port Todd Ported Alum

N/A

2.20/1.70

N/A

143/93

213/139

269/177

295/192

315/205

331/217

348/234

361/243

370/247

378/251

KRE High-Port Todd Ported Calvin Hill Alum

N/A

2.20/1.70

N/A

169/90

243/141

295/180

320/199

345/214

370/228

387/239

395/246

394/252

391/260

380/270

KRE High-Port Ported SD Performance Alum

N/A

2.25/1.75
4.185
Pipe

N/A

78/67

152/125

220/164

282/199

327/231

356/255

375/272

385/286

394/290
@.850

KRE High-Port Ported Anderson Port Development Alum

N/A

2.19/1.725
4.31

N/A

85/-

155/-

222/-

283/-

334/-

367/-

375/-

379/-

383/-

KRE Warp 6 Canted Valve As Cast Ken C Alum

N/A

2.25/1.75

N/A

420/-

450/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE Warp 6 Canted Valve HPP Alum

399/-

2.25/1.75

71/74

160/130

221/170

273/204

316/227

405/248

421/269

434/295

443/308

452/312

KRE Warp 6 Canted Valve HPP Alum

N/A

2.375/1.85

512/385

McCarty Ram Air V Street Ported Jim Robertson / RACE flowed Joe Sherman Alum

N/A

2.15/1.72
4.25
No Pipe

70/63

144/115

206/145

255/178

298/201

327/218

343/231

McCarty Ram Air V Street Ported Jim Robertson Alum

N/A

2.15/1.72
4.50

N/A

71/-

137/-

214/-

281/-

345/-

386/-

395/-

400/-

403/-

McCarty Ram Air V Street Mild CNC Port Alum

N/A

2.19/1.75
4.375

N/A

171/118

233/175

276/200

323/230

359/237

377/249

386/260

393/265

Roland Racing CV-235 Anderson Port Development SF600 Alum

235/-

2.125/-
4.25

N/A

74/-

154/-

230/-

290/-

305/-

328/-

350/-

Roland Racing CV-275 Alum

275/-

2.30/-
4.31

N/A

81/-

164/-

247/-

299/-

331/-

357/-

378/-

392/-

402/-

Roland Racing CV-290 CNC Alum

290/-

2.30/-
4.31

N/A

82/-

170/-

240/-

283/-

315/-

345/-

362/-

378/-

390/-

Roland Racing CV-325 Ported Anderson Port Development I-50 SF600 Alum

325/-

2.30/-
4.40

N/A

75/-

154/-

228/-

291/-

350/-

387/-

411/-

425/-

439/-

450/-

Roland Racing Canted Valve Bowl Blended Alum

290/-

2.25/1.66
4.15
No Pipe

65/92

92/85

173/128

240/159

294/193

345/213

366/234

373/238

384/249

Roland Racing Canted Valve Bowl Blended Alum

290/-

2.25/1.66
4.15
2.25" Pipe

65/92

92/85

173/128

240/159

294/208

345/232

366/246

373/262

384/270

Roland Racing CV-1 Minor Intake Mild Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
No Pipe

N/A

85/65

154/121

227/168

277/198

297/211

310/218

330/229

343/236

363/242

374/247

382/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Roland Racing CV-1 Minor Intake More Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
No Pipe

N/A

85/62

154/122

227/170

277/205

297/219

310/228

330/238

343/246

363/253

374/259

382/270

Roland Racing CV-1 Minor Intake More Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
2 1/8" Pipe

N/A

85/-

154/-

227/-

277/-

297/-

310/247

330/-

343/-

363/-

374/-

382/294

Roland Racing CV-1 Alum

N/A

2.25/1.73

N/A

71/56

148/114

230/150

294/175

331/196

360/210

378/220

389/232

400/233

414/244

Roland Racing CV-1 HRM Alum

285/-

2.30/1.71
4.175
2" Pipe

N/A

72/61

145/114

220/142

273/166

303/186

330/202

349/211

358/220

373/230

385/244

Roland Racing CV-1 HRM Alum

285/-

2.30/1.71
4.385
2" Pipe

N/A

71/56

148/114

230/150

294/175

331/193

360/210

378/220

389/232

400/233

414/244

CV-1 Ported Anderson Port Development Alum

N/A

2.125/-
4.155

N/A

76/-

142/-

231/-

297/-

314/-

329/-

342/-

360/-

375/-

380/-

398/-

410/-

CV-290 Ported Anderson Port Development Alum

291.4/-

2.30/-

N/A

73/-

160/-

230/-

296/-

353/-

383/-

413/-

428/-

CV-331 Ported Anderson Port Development SF1020 Alum

331/-

2.30/-

N/A

82/69

167/122

232/161

302/197

365/227

415/248

430/-

442/264

453/272

453/281

456/-

459/-

CV-345 Ported Anderson Port Development Alum

345/-

N/A

164/-

238/-

316/-

381/-

422/-

450/-

458/-

464/-

472/-

CV-360 Ported Anderson Port Development I-55 Alum

360/-

2.35/-
4.375

N/A

79/-

161/-

239/-

309/-

364/-

418/-

429/-

448/-

461/-

478/-

489/-

CV-1 Ported Darin Morgan SF600 Alum

N/A

2.30/-

N/A

143/-

217/-

288/-

337/-

390/-

417/-

428/-

435/-

CV-1 Ported John Marcella I-50 E-50 SF600 Alum

N/A

2.31/1.75
4.375

N/A

77/56

153/104

230/147

311/198

370/225

412/243

435/263

423/278

428/286

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

CV-1 Ported Calvin Hill Alum

305/-

2.30/-

N/A

99/-

177/-

237/-

281/-

333/-

360/-

411/-

CV-1 Ported Calvin Hill Alum

310/-

2.30/-

N/A

154/-

250/-

310/-

350/-

376/-

399/-

416/-

428/-

440/-

CV-1 Fusion Ported Calvin Hill SF1020 Alum

N/A

2.30/1.75
4.375
2.25" Pipe

N/A

65/47

132/93

213/141

290/184

347/225

401/258

432/281

425/296

CV-1 Fusion Mike Luke Ported Calvin Hill I-45 E-45 Alum

N/A

2.30/1.73

79/56

157/107

230/152

290/187

318/204

341/222

367/235

381/246

396/253

407/257

425/268

430/272

CV-1 Quest Ported Calvin Hill I-45 E-45 SF1020 Alum

N/A

2.30/1.73

N/A

76/47

152/93

227/141

298/184

340/225

373/258

399/281

417/296

430/-

CV-1 Ported Race Shop Alum

N/A

2.30/1.73
4.25

N/A

157/127

227/150

292/186

345/205

376/262

435/278

462/280

CV-1_1 Out of Box Alum

270/-

2.15/1.725
4.15

N/A

79/66

156/125

224/153

273/191

324/225

356/244

355/256

355/260

356/267

358/269

CV-1_1 Ported Alum

290/-

2.19/-
4.35

N/A

84/-

155/-

216/-

290/-

355/-

391/-

417/-

434/-

437/-

CV-2 Billet Alum

N/A

2.375/-
4.375

N/A

89/-

170/-

258/-

331/-

400/-

442/-

465/-

479/-

486/-

498/-

514/-
@1.05

Wenzler Series II Alum

N/A

2.11/1.77

60-90

68/66

140/119

207/158

257/193

274/216

288/224

Wenzler Series II 180 Flowtech - Steven Magnotti SF110 Alum

N/A

52/38

124/91

178/137

217/175

240/180

253/180

265/-

Wenzler Series II Ported Flowtech - Steven Magnotti 30 Deg Back Cut SF110 Alum

N/A

-/1.77

N/A

-/66

-/119

-/158

-/193

-/207

-/216

-/222

-/225

-/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Wenzler Series II KRE Ported Alum

N/A

2.15/1.77

N/A

330/260

Wenzler Series II Ported Alum

240/-

2.11/-

N/A

342/-

Wenzler High Port KRE Ported Alum

N/A

2.11/1.65

N/A

345/265

Wenzler Super Chief Alum

N/A

2.25/1.80

N/A

320/-

Wenzler Super Chief Ported JC Culpepper - VJ BW Meaux Racing Alum

N/A

2.35/1.78
4.50
No Pipe

N/A

133/125

205/192

272/250

340/291

394/317

427/329

425/336

432/340

&nbsnbsp;
3800 V6

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

GM 3800 TEP

160/60

1.80/1.52
3.800

N/A

112/102

155/134

176/145

187/149

GM 3800 TEP Ported

N/A

1.80/1.52
3.800

N/A

125/111

167/137

195/149

211/182

GM 3800 TEP Ported

N/A

1.80/1.57
3.800

N/A

127/110

167/159

193/186

207/194

GM 3800 Abbott Racing SF600

N/A

1.80/1.52

N/A

55/45

114/98

156/132

177/145

185/148

189/153

GM 3800 Ported Abbott Racing Stage 3 SF600

N/A

1.84/1.55

N/A

62/52

128/108

186/155

213/167

226/173

232/178

GM 3800 L36 L67 L72 Ported Super Six Motorsports Stage 2

N/A

1.80/1.52

N/A

228/194

GM 3800 L36 L67 L72 Ported Super Six Motorsports Stage 3

N/A

1.84/1.60

N/A

240/202

GM 3800 Ported Valako Race Heads

N/A

1.88/-

N/A

124/-

169/-

202/-

227/-

248/-

267/-

GM 3800 ZZ Performance

N/A

1.80/1.52
-
No Pipe

N/A

114/103

157/130

181/144

191/151

197/152

GM 3800 ZZ Performance

N/A

1.80/1.52
-
Pipe

N/A

114/109

157/144

181/162

191/168

197/171

ZZ Performance

N/A

1.88/1.55
-
No Pipe

N/A

127/119

175/141

200/152

206/157

207/160

ZZ Performance Seats Blended

N/A

1.88/1.55
-
Pipe

N/A

132/128

179/168

210/193

217/200

217/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

ZZ Performance Ported

N/A

1.97/1.55
-
No Pipe

N/A

130/127

187/159

224/182

242/187

254/190

Porsche

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

2.0l 914

N/A

42mm/ 36mm
-
No Pipe

N/A

65/40

130/55

145/65

165/67

180/-

2.0l 914 Valve Guides moved Richard

N/A

50/42

N/A

60/54

84/77

110/95

131/111

152/122

166/130

181/136

194/141

209/144

216/145

221/146

2.2T/911T Snowman

N/A

46mm/ 42mm

N/A

60/52

121/99

174/129

192/142

200/149

200/-

2.2E 911 Thundercraft Racing

N/A

82/54

112/77

135/99

165/117

187/133

202/143

205/150

207/153

207/155

2.4S

N/A

46mm/-

N/A

65/-

120/-

169/-

196/-

208/-

930 3.3

N/A

48.96mm/ 41.5mm

N/A

76/56

139/107

171/126

198/139

217/153

225/155

228/157

229/-

930 3.3 Modified

N/A

48.96mm/ 41.5mm

N/A

77/54

139/104

173/124

202/139

217/151

225/166

239/169

243/-

924 '373 R & R Performance

N/A

1.57/1.295

N/A

52/41

90/72

135/105

150/120

152/126

153/129

924 '373 Street Port R & R Performance

N/A

1.57/1.295

N/A

50/41

91/72

137/107

162/126

172/136

181/142

928 RL

N/A

Stock

N/A

54/49

110/106

160/132

190/161

211/171

216/173

928 Ported RL

N/A

2.08/1.60
4.00

N/A

57/55

126/110

186/145

232/180

270/191

291/210

944/951

N/A

-
100mm

N/A

180/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

944/951 Ported Lindsey Racing Level I SF600

N/A

-
100mm

N/A

186/-

944/951 Ported Lindsey Racing Level II SF600

N/A

-
100mm

N/A

232/-

944/951 Ported Lindsey Racing Level III SF600

N/A

1.88/-
100mm

N/A

252/-

944/951 Ported Lindsey Racing Level V SF600

N/A

2.00/-
104mm

N/A

63/-

125/-

180/-

228/-

260/-

270/-

996 Ported McKenzie Cylinder Heads

N/A

39mm/ 34mm

N/A

109/94

162/173

206/193

246/215

283/243

304/267

315/279

320/287

324/296

Xtreme Cylinder Heads 2.5

136/64

47mm/ 40mm

Xtreme Cylinder Heads 3.0

150/66

52mm/ 42.5mm

_Porsche

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

2.5 Ported /Andre' Norrback

N/A

45mm/40mm
100mm
No Pipe

N/A

43/39

89/89

134/113

168/138

192/151

206/163

211/167

Renault

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1800 16v F7P-720/722 Sabre Heads

N/A

30.7mm/ 28.4mm
83mm
No Pipe

N/A

34/33

73/69

114/100

153/126

176/139

186/148

184/152

189/152

191/157

1800 16v F7P-720/722 Ported Sabre Heads

N/A

30.7mm/ 28.4mm
83mm
No Pipe

N/A

36/35

74/75

113/121

151/156

185/178

206/188

220/192

228/192

230/194

1800 16v F7P-720/722 Ported Sabre Heads largerintake seat inserts

N/A

33mm/ 28.4mm
83mm
No Pipe

N/A

38/35

77/75

116/121

153/156

185/178

213/188

234/192

248/192

258/194

1800 16v F7P-760 Sabre Heads

N/A

33.5mm/-
83mm

N/A

36/-

76/-

111/-

141/-

163/-

182/-

194/-

200/-

202/-

1800 16v F7P-760 Ported Sabre Heads

N/A

33.5mm/-
83mm

N/A

38/-

75/-

111/-

146/-

177/-

200/-

215/-

218/-

222/-

Clio Williams Late Model Sabre Heads

N/A

33mm/-
83mm

N/A

37/-

80/-

120/-

159/-

189/-

206/-

215/-

218/-

220/-

Clio Williams Late Model Sabre Heads

N/A

33mm/ 28.4mm
83mm
No Pipe

N/A

38/35

79/73

119/118

159/157

194/178

219/188

234/192

242/194

248/201

Rover

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

1.8 K CNC Heads UK

N/A

1.141/1.023
100mm
No Pipe

N/A

30/-

63/48

94/-

122/92

133/-

135/109

139/-

141/112

142/-

142/112

1.8 K Ported CNC Heads UK

N/A

1.141/1.023
100mm
No Pipe

N/A

36/-

76/66

113/-

151/116

180/-

189/136

192/-

195/154

199/-

199/165

1.8 VVC CNC Heads UK

N/A

31.5mm/27.5mm

N/A

34/27

63/58

100/86

137/108

165/121

181/126

187/128

192/130

194/130

196/130

1.8 VVC Ported CNC Heads UK

N/A

31.5mm/27.5mm

N/A

42/35

86/71

125/101

162/124

194/136

219/147

228/156

237/165

238/170

239/172

3.9l Peak Performance Alum

N/A

Stock

N/A

92/72

133/86

143/89

146/90

148/91

144/104

3.9l Ported Peak Performance Alum

N/A

96/80

144/107

177/127

181/134

181/140

144/104

4.0l RL Alum

N/A

Stock

N/A

54/41

104/81

137/97

139/101

142/104

144/104

4.0l Ported RL Alum

N/A

Stock

N/A

57/45

110/93

153/123

187/139

192/145

190/149

Saab

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.350

.400

.450

.500

.600

Average

B202 Old 16v

N/A

32mm/ 29mm

N/A

153/160

B202 New 16v

N/A

32mm/ 29mm

N/A

182/165

B212/B234 Long 16v

N/A

34mm/ 31.5mm

N/A

192/170

B212/B234 Short 16v

N/A

34mm/ 31.5mm

N/A

228/170

Studebaker

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Studebaker 53976 '57 Golden Hawk Cleaned Stock 11secAvanti Iron

N/A

1.656/1.53
3.68
1/2" Radius Plate

N/A

50/51

87/84

120/113

137/123

145/132

-/137

Studebaker 53976 '57 Golden Hawk Ported 11secAvanti E-30 Backcut Iron

N/A

1.872/1.53
3.68
1/2" Radius Plate

N/A

56/51

98/100

136/118

166/129

182/137

189/140

Studebaker 53976 '57 Golden Hawk Ported 11secAvanti 30/45/60/72 cuts Iron

N/A

1.872/1.60
3.68
1/2" Radius Plate

N/A

56/52

100/104

140/139

172/146

189/152

194/155

Studebaker 1557570 Stock Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

52/42

88/79

120/103

135/122

144/133

145/141

Studebaker 1557570 Stock VJ Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

55/50

102/89

133/106

148/128

155/139

157/145

Studebaker 1557570 Mild Porting Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

54/50

103/90

135/115

163/140

174/156

180/163

Studebaker 1557570 Decent Porting Bill Jones intake valve guide moved .045" toward exhaust Iron

N/A

1.85/1.60
-
No Pipe

N/A

58/51

113/104

156/135

193/156

212/165

216/179

Studebaker 1555479 Stock Bill Jones Iron

N/A

1.875/1.625

N/A

69/54

116/99
-
No Pipe

152/130

172/149

189/162

Studebaker Rabid Snail Racing Iron

N/A

1.875/1.5625

N/A

59/54

118/110

163/146

194/156

215/161

216/164

Subaru

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

EJ20

N/A

36mm/ 32mm

N/A

53/46

117/86

144/103

151/111

EJ20K JDM Version 4 ASF Machine Non-Dogleg SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

30/31

87/69

138/103

179/132

214/152

241/165

245/177

249/185

249/193

251/194

EJ20 Ported MRT Performance

N/A

36mm/ 32mm

N/A

65/56

124/95

155/118

165/126

EJ20 Version 4 1997 Ported Kelford Cams

N/A

1.46/1.32

N/A

46/40

94/97

143/146

187/178

224/197

258/204

278/218

296/223

308/228

319/232

EJ20 '99 Ported Knight Engines

N/A

97/86

194/210

271/230

317/252

332/261

EJ20 AUDM-USDM Small Port Ported Knight Engines 1 OS

N/A

37mm/ 32mm

N/A

101/80

205/169

292/230

323/253

337/263

EJ20 JDM Big Port Ported Knight Engines 1 OS

N/A

37mm/ 32mm

N/A

101/80

205/169

293/230

324/253

339/263

EJ22T

N/A

193/147

EJ25

N/A

1.42/1.24

N/A

-/182

240/-

EJ251 SOHC ASF Machine SF110

N/A

35mm/ 30.5mm
-
No Pipe

N/A

48/-

84/-

143/-

188/-

222/-

239/-

253/-

260/-

264/-

EJ25 SOHC CHR Motorsports LLC Home Made Bench

N/A

35mm/ 30.5mm
-
Radius on Exhaust

N/A

76/58-67

122/102-105

142/145-136

162/184-154

224/204-161

240/209-163

250/212-164

256/216-164

256/216-162

EJ25 SOHC Ported CHR Motorsports LLC Home Made Bench

N/A

-
-
Radius on Exhaust

N/A

78/69-57

123/103-98

163/147-136

201/192-177

234/226-192

247/247-198

256/259-202

264/264-205

266/267-208

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

EJ25 DOHC EJ25D Ported ASF Machine

N/A

36mm/ 32mm
-
No Pipe

N/A

93/74

141/111

183/143

217/159

246/167

257/178

264/185

268/187

275/191

Impreza Gen 6 Sabre Heads SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

42/33-33

87/74-72

133/114-106

184/146-135

227/162-147

252/173-155

266/176-159

273/183-160

278/186-160

276/188-160

Impreza Gen 6 Ported Exhaust Sabre Heads SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

42/37-36

87/84-79

133/131-123

184/163-160

227/188-177

252/196-187

266/202-194

273/207-198

278/210-199

276/211-199

Impreza CNC Heads UK

N/A

36mm/ 32mm
100mm
Pipe

N/A

43/-

90/82

136/-

187/149

227/-

259/170

272/-

281/175

285/-

285/174

Impreza Ported CNC Heads UK

N/A

36mm/ 32mm
100mm
Pipe

N/A

45/-

93/85

141/-

187/169

228/-

262/208

288/-

298/224

306/-

309/228

V7 JDM Ported +1mm Valve

N/A

99/96

184/179

257/204

283/217

299/237

WRX

N/A

81/79

177/153

234/181

238/186

234/188

WRX Ported Cobb Tuning

N/A

300/250

WRX Ported Kelford Cams

N/A

1.45/1.30

N/A

92/84

142/127

186/163

227/185

260/192

280/199

293/204

305/207

308/210

WRX Ported Bullet Cylinder Heads

N/A

98/92

196/163

274/206

295/219

300/223

WRX STi B25

N/A

35mm/ 30mm

N/A

81/84-78

166/166-155

231/188-174

248/195-178

WRX STi Ported PNP Heads

N/A

35mm/ 30mm

N/A

276/212

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

WRX STi '04 DOHC EJ257 Non-Dogleg Exhaust Ported ASF Machine 1mmOS valves

N/A

37mm/ 33mm
-
No Pipe

N/A

49/44

103/93

150/133

200/183

223/203

256/217

268/219

274/221

286/226

298/231

_Subaru

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

EG33 MORGO Systems

N/A

36mm/ 32mm
-
Pipe

N/A

67/65

133/122

194/166

212/176

219/181

221/185

221/187

221/189

221/190

222/193

EG33 Ported MORGO Systems

N/A

36mm/ 32mm
-
Pipe

N/A

70/71

141/141

206/185

231/195

248/201

260/206

270/208

275/209

280/212

284/213

Toyota

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

22 R/RE

N/A

44.5mm/ 36.5mm

N/A

130/-

22 R/RE Stage 2 Ported

N/A

45mm/ 37mm

N/A

160/-

22 R/RE Stage 3 Ported

N/A

45mm/ 37mm

N/A

200/-

22 R/RE Stage 5 Ported

N/A

45mm/ 37mm

N/A

250/-

2ZZ-GE Sabre Heads SF110

N/A

34mm/ 29mm
82mm
No Pipe

N/A

81/67

121/101

158/126

187/139

209/153

227/158

237/164

245/167

252/173

2ZZ-GE Ported Sabre Heads SF110

N/A

34mm/ 29mm
82mm
No Pipe

N/A

81/70

121/103

157/130

188/149

209/158

228/166

242/173

254/185

263/189

2ZZ-GE Ported

N/A

99/75

138/113

174/135

198/151

216/164

230/170

239/175

247/180

254/182

3S-GTE Knight Engines

N/A

33.5mm/29mm

N/A

92/75

166/133

219/163

256/177

265/189

265/199

3S-GTE Ported Knight Engines

N/A

34.5mm/30mm

N/A

94/79

177/145

242/189

278/215

298/235

309/247

3S-GTE GEN3 Ported Kelford Cams

N/A

1.338/1.181

N/A

88/72

139/114

177/149

212/184

239/197

260/204

278/211

294/218

307/223

3TC

N/A

40mm/ 35mm

N/A

133/97

140/110

145/120

147/135

3TC CNC M2 Race Systems

94/-

41mm/ 36mm
3.575

175/115

188/127

190/141

190/148

190/155

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

3TC Billet 6061 T-6 Alum HeadWay Performance

94/-

44mm/ 39mm

220/140

3VZ-E Louthan Ported

N/A

171/136

187/144

4AGE Early MR2 1.6 16v Sabre Heads

N/A

30.5mm /25.6mm
-
No Pipe

N/A

74/59

111/91

147/107

174/113

183/115

187/116

190/117

190/118

4AGE Early MR2 1.6 16v Ported Sabre Heads

N/A

30.5mm /25.6mm
-
No Pipe

N/A

74/63

113/98

152/128

182/148

201/153

211/154

219/155

223/155

225/-

4AGE 16v Ported Kelford Cams

N/A

1.26/1.07

N/A

81/79

124/126

158/147

184/158

199/163

212/165

221/166

227/168

4AGE 20v Kelford Cams

N/A

26.5mm /26mm

N/A

101/61

146/89

172/111

193/125

202/133

210/138

215/142

220/146

4AGE 20v Kelford Cams 1mm OS

N/A

27.5mm/ 27mm

N/A

104/61

149/90

178/117

199/132

217/141

231/147

241/150

247/154

AE101 4AGE 1.6 20v Sabre Heads

N/A

26.5mm /26mm
-
No Pipe

N/A

91/62

135/88

161/106

176/113

195/118

202/121

205/124

205/125

AE101 4AGE 1.6 20v Ported Sabre Heads

N/A

26.5mm /26mm
-
No Pipe

N/A

95/67

140/97

174/125

195/140

210/150

219/156

227/159

232/160

235/162

GT4 ST185 Ported Sabre Heads

N/A

33.4mm /29mm
-
No Pipe

N/A

80/72

124/109

164/133

195/147

218/157

235/164

244/168

250/173

GT4 ST185 Ported Sabre Heads OS Exhaust

N/A

33.4mm /29.8mm
-
No Pipe

N/A

80/76

124/113

164/146

195/164

218/179

235/190

244/192

250/198

5S-FE

N/A

32mm/ 27mm
-
No Pipe

N/A

75/67

143/108

152/125

152/127

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

5S-FE Light Ported

N/A

33mm/ 28mm
-
No Pipe

N/A

84/67

157/114

181/138

183/146

5M Bruce Hilsabeck

N/A

32mm/ 27mm

N/A

55/42

115/70

145/107

158/126

167/133

5M Bruce Hilsabeck Ported

N/A

67/55

121/107

162/133

193/149

200/156

7MG '89 iNvis SF600

N/A

32mm/ 27.5mm

N/A

81/65

118/84

149/106

167/119

185/121

191/126

194/129

7MG '89 T72mk3

N/A

32mm/ 27.5mm

N/A

67/62

139/113

180/131

190/138

190/140

7MG '89 T72mk3 Ported

N/A

32mm/ 27.5mm

N/A

78/78

166/132

214/156

229/173

235/176

7M-GE Allan SF600

N/A

32mm/ 27.5mm

N/A

77/60

114/93

141/113

163/123

176/128

180/131

180/133

7M-GE Ported Allan Street SF600

N/A

32mm/ 27.5mm

N/A

80/70

122/103

160/121

188/131

202/139

211/145

216/149

220/155

7M-GE Ported Allan Race

N/A

33.6mm/29mm

N/A

81/70

122/108

153/135

181/150

201/164

212/168

222/172

232/174

239/188

7MGTE CNC

N/A

32mm/ 27.5mm

N/A

113/80

187/142

216/172

231/184

242/191

7MGTE 24v CCH

N/A

32mm/ 27.5mm

N/A

208/149

7MGTE 24v Ported CCH

N/A

32mm/ 27.5mm

N/A

230/186

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

2JZ GT Stu Hagen

N/A

33.6/29mm

N/A

80/74

154/120

195/140

207/152

215/154

2JZ GT

N/A

33.6/29mm

N/A

82/64

130/97

163/126

191/135

211/142

220/144

224/147

228/150

229/152

232/152

232/151

2JZ GT Ported

N/A

33.6/29mm

N/A

83/65

125/103

163/136

191/162

217/178

235/185

243/194

250/201

251/204

256/205

266/206

2JZ Ported SF300

N/A

33.6/29mm

N/A

97/70

136/106

179/132

215/151

242/167

259/173

265/179

268/182

2JZ '93-98 M2 Race Systems

N/A

33.6/29mm

N/A

168/121

190/130

206/137

217/139

226/139

230/140

232/140

2JZ '93-98 CNC M2 Race Systems

136/-

33.6mm/ 29mm

N/A

85/81

127/116

168/145

203/162

231/170

255/174

271/177

284/179

289/180

2JZ Ported Knight Engines 1 OS

N/A

34.6/30mm

N/A

109/99

161/179

227/212

282/222

300/230

302/234

1UZ-FE

N/A

33.5mm/28mm

N/A

85/61

129/96

161/111

189/124

202/137

224/145

1UZ-FE

N/A

33.5mm/28mm

N/A

204/125

221/133

1UZ-FE

N/A

33.5mm/28mm

N/A

163/120

238/147

250/149

1UZ-FE Ported

N/A

174/125

261/167

277/174

1UZ-FE Ported Kelford Cams

N/A

1.41/1.25

N/A

104/88

147/132

189/157

228/176

251/195

266/205

275/211

281/217

283/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Billet 1UZ-FE paul

N/A

36mm/32mm

N/A

300/250

_Toyota

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

21 R MORGO Systems

N/A

Stock

N/A

41/-

81/-

118/-

133/-

143/-

147/-

144/-

143/-

144/-

145/-

21 R Ported MORGO Systems

N/A

Stock

N/A

44/-

85/-

125/-

144/-

160/-

173/-

177/-

175/-

169/-

168/-

2E 1.3l 12V MORGO Systems

N/A

Stock
-
Pipe

N/A

55/53

98/89

126/105

134/110

139/113

143/114

146/113

146/114

147/114

147/116

2NZ-FE 1.3l MORGO Systems

N/A

Stock
-
Pipe

N/A

65/49

118/91

153/111

166/114

175/118

181/122

186/122

190/124

193/126

2T-G Ported MORGO Systems

N/A

44mm/ 37.5mm

N/A

49/-

93/-

139/-

159/-

180/-

196/-

207/-

216/-

222/-

226/-

3S-GE (BEAMS) Ported MORGO Systems Alum

N/A

33.5mm/29mm

N/A

58/-

122/-

173/-

195-

214/-

231/-

246/-

257/-

264/-

267/-

5M-GE

N/A

178/-

5M-GE Ported

N/A

252/-

4A-F MORGO Systems

N/A

30mm/ 24.5
-
Pipe

N/A

56/50

109/90

136/105

139/107

140/108

140/109

139/110

138/111

138/110

4A-F Ported MORGO Systems

N/A

30mm/ 24.5
-
Pipe

N/A

59/53

112/104

151/122

162/127

167/130

169/132

170/133

171/134

171/135

172/-

4AGE 20v Blacktop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

73/-

139/-

183/-

212/-

231/-

240/-

4AGE 20v Silvertop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

78/-

144/-

183/-

206/-

220/-

229/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

4AGE 2009 Silvertop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

78/-

146/-

186/-

209/-

226/-

236/-

4AGE 20v Silvertop MORGO Systems

N/A

26.5mm /26mm
-
Pipe

N/A

80/56

144/104

182/125

195/131

201/134

206/136

208/137

207/138

-/139

4AGE 20v Silvertop Ported MORGO Systems

N/A

26.5mm /26mm
-
Pipe

N/A

83/56

159/116

198/146

209/152

218/155

225/157

231/159

234/159

-/161

Volvo

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.47244

.500

.600

.700

Average

B20

N/A

44mm/35mm

N/A

50/33

109/70

142/79

161/80

161/82

405 iadr

N/A

44mm/35mm
94mm

N/A

50/39

101/78

145/100

159/107

168/115

405 dl24gt

N/A

44mm/35mm

N/A

51/41

108/80

149/102

168/111

171/114

175/116

405 dl24gt Ported

N/A

44mm/35mm

N/A

63/46

113/86

157/108

183/117

193/121

199/123

405 Ported Pacman

N/A

44mm/35mm

N/A

219/-

405 Ported Pacman

N/A

46mm/38mm

N/A

249/-

405 Ported Pacman

N/A

48mm/40mm

N/A

259/-

530

N/A

44mm/35mm

N/A

-/115

530 Ported

N/A

44mm/40mm

N/A

165/135

530 Ported

N/A

44mm/38mm

N/A

161/141

531

N/A

44mm/35mm

N/A

86/72

140/136

180/156

190/160

-/162

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.47244

.500

.600

.700

Average

T5 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

74/60

148/144

172/-

184/176

192/-

199/174

201/-

199/175

T5 Ported CNC Heads UK

N/A

1.22/1.062
100mm
No Pipe

N/A

71/71

145/163

179/-

200/209

215/-

225/215

229/-

232/219

16V

N/A

34.5mm/ 31.5mm
-
No Pipe

87/81

167/159

220/194

232/196

236/199

16V BOPORT Racing Heads

N/A

34.5mm/ 31.5mm
3.81

N/A

85/-

164/-

198/-

219/-

226/-

230/-

232/-

234/-

235/-

B234 16v Boport

N/A

34.5mm/ 31.5mm
3.810

N/A

85/-

164/-

198/-

219/-

226/-

230/-

232/-

234/-

235/-

20V S60R

N/A

35mm/31mm

N/A

130/125

181/159

185/171

20V S60R Ported

N/A

35mm/31mm

N/A

150/140

197/181

205/187

20V 2.4l S70 CCH

N/A

Stock

N/A

196/168

20V 2.4l S70 Ported CCH

N/A

Stock

N/A

220/210

ARCA 16V

N/A

-
-
No Pipe

N/A

62/51

123/100

176/130

222/171

257/200

278/218

292/228

_Volvo

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

B20 Jens Gustavssons Ported

N/A

44mm/ 39.4mm

N/A

52/42

97/100

134/123

164/133

186/137

190/137

196/135

198/-

B20 Jens Gustavssons Ported Motor Puls

N/A

48mm/ 38.5mm

N/A

250/160

B20 Ported

N/A

45mm/ 38mm

N/A

37/-

82/-

126/-

162/-

176/-

177/-

179/-

180/-

B20 Ported

N/A

46mm/ 38.5mm

N/A

37/-

93/-

133/-

165/-

193/-

212/-

213/-

215/-

B234F 16v Ported qwk Alum

N/A

37mm/-

N/A

71/-

138/-

198/-

244/-

274/-

298/-

316/-

318/-

B234F 16v MORGO Systems

N/A

34.5/-

N/A

71/-

142/-

194/-

217/-

230/-

233/-

235/-

238/-

B234F 16v Ported MORGO Systems

N/A

-
-
Pipe

N/A

74/71

149/146

224/209

260/246

272/260

273/263

277/266

281/267

16v Ported /Andre' Norrback

N/A

34.5mm/ 31.5mm
98mm
No Pipe

N/A

70/65

142/133

193/185

232/202

258/213

272/220

277/224

280/224

16v Ported /Andre' Norrback

N/A

34.5mm/ 31.5mm
98mm
No Pipe

N/A

70/67

139/140

205/190

250/214

271/219

283/222

287/226

290/228

16v Ported /Andre' Norrback

N/A

36.0mm/ 31.5mm
98mm
No Pipe

N/A

75/65

149/133

217/185

264/202

286/213

301/220

304/224

306/226

16v Ported /Andre' Norrback

N/A

39mm/-

N/A

74/-

146/-

213/-

265/-

306/-

332/-

348/-

356/-

362/-

16v Ported

N/A

37.0mm/-

N/A

71/-

198/-

244/-

274/-

298/-

316/-

318/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

B234 16v Ported /Andre' Norrback

N/A

39mm/ 33mm
98mm
No Pipe

N/A

78/69

146/144

215/196

271/226

308/244

318/250

324/252

530 Ported /Andre' Norrback Epoxy

N/A

46mm/38mm
98mm
No Pipe

N/A

46/40

87/68

127/90

162/106

191/120

207/126

215/128

220/130

531 Ported /Andre' Norrback Epoxy

N/A

46mm/38mm
98mm
No Pipe

N/A

47/35

91/72

133/98

168/114

195/121

215/124

222/126

226/127

531 Ported /Andre' Norrback

N/A

44mm/35mm
98mm
No Pipe

N/A

47/38

91/70

132/106

166/123

192/135

204/143

209/146

210/146

531 Ported /Andre' Norrback

N/A

44mm/35mm
98mm
No Pipe

N/A

42/38

84/61

121/91

155/110

183/123

200/133

212/138

214/140

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

VW Type 1

N/A

43/-

77/-

90/-

100/-

101/-

VW Type 1 DRD Racing Heads L3

N/A

45/22

81/60

107/79

122/94

132/96

VW 043 Type 1 DRD Racing Heads L3

N/A

35.5mm/ 32mm

VW 043 Type 1 DRD Racing Heads L5

N/A

42mm/ 37.5mm

N/A

175/-

VW 043 Type 1 DRD Racing Heads L6

N/A

42mm/ 37.5mm

N/A

185/-

VW 043 Type 1 DRD Racing Heads L7

N/A

42mm/ 37.5mm

N/A

200/-

VW 043 Type 1 DRD Racing Heads L8

N/A

-/38mm

N/A

220/-

VW 044 Type 1 DRD Racing Heads L5

60/-

40mm/ 35.5mm

N/A

57/49

97/89

130/112

154/126

168/127

172/127

174/127

VW 044 Type 1 DRD Racing Heads L6

63/-

42mm/ 37.5mm

N/A

63/49

106/89

136/112

163/130

183/139

195/140

201/140

204/141

VW 044 Type 1 DRD Racing Heads L7

73/-

44mm/ 37.5mm

N/A

56/49

100/89

141/112

172/130

198/139

206/140

211/140

215/141

VW 044 Type 1 DRD Racing Heads L8

N/A

48mm/ 38mm

N/A

62/49

113/89

155/112

190/130

216/139

225/140

234/140

247/141

VW 044 Volkwagen Performance Porting

N/A

44mm/ 37mm

N/A

230/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

VW 044 Volkwagen Performance Porting

N/A

48mm/ 37mm

N/A

255/180

VW 044 Street Ported

N/A

42mm/ 37.5mm
94mm
1 5/8" Pipe

56.8

78/70

102/91

122/104

134/115

144/126

154/133

164/138

170/141

176/146

181/151

187/166

VW 044 Race Ported

N/A

44mm/ 37.5mm
94mm
1 3/4" Pipe

53.2

80/70

102/89

121/102

137/115

150/126

163/134

174/142

184/146

193/150

201/153

207/156

1.6

N/A

68/64

129/118

160/148

170/154

174/157

16V

N/A

32mm/28.1mm

N/A

60/55

128/114

163/123

177/130

16V Ported

N/A

92/72

163/146

216/180

240/191

1.8 8V CNC Heads UK

N/A

1.5735/ 1.308
100mm
No Pipe

N/A

50/38

75/-

96/72

114/-

124/89

132/-

134/99

135/-

136/102

1.8 8V Ported CNC Heads UK

N/A

1.5375/ 1.3085
100mm
No Pipe

N/A

52/39

78/-

102/90

122/-

139/112

151/-

164/123

173/-

181/129

1.8 8V Ported CNC Heads UK

N/A

1.6515/ 1.3785
100mm
No Pipe

N/A

54/49

81/-

108/86

132/-

157/111

175/-

187/126

193/-

198/133

1.8 16V CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

71/53

106/-

143/119

171/-

186/143

192/-

194/150

196/-

196/153

1.8 16V Ported CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

82/62

126/-

171/120

201/-

224/153

230/-

233/165

240/-

238/174

1.8 16V

N/A

32mm/28.1mm

N/A

172/123

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

1.8 16V

N/A

80/-

121/-

154/-

195/-

203/-

1.8 16V soch

N/A

32mm/28.1mm

N/A

77/58

107/96

132/121

157/125

172/128

175/129

177/129

1.8 16V TT SF300

N/A

32mm/28.1mm

N/A

76/67

108/96

138/115

161/121

175/124

181/125

183/126

1.8 16V TT Street Port SF300

N/A

32mm/28.1mm

N/A

76/67

111/99

146/125

175/139

191/152

199/160

209/166

1.8 20V

N/A

26.9mm/ 29.9mm

N/A

177/171

1.8 20V

N/A

26.9mm/ 29.9mm

N/A

172/123

1.8 20V Big Port

N/A

212/195

1.8 20V Big Port

N/A

210/175

1.8T 20V AEB Large Port Bill Jones

N/A

1.06/1.18

N/A

96/78

164/125

199/157

218/164

219/171

1.8T 20V AEB Large Port Ported Bill Jones

N/A

1.06/1.18

N/A

102/94

180/155

210/184

219/191

228/198

1.8T 20V AEB Large Port Ported Bill Jones

N/A

1.099/1.215

N/A

108/93

184/139

211/171

216/179

220/184

1.8T 20V CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

102/89

142/-

178/134

205/-

222/161

231/-

239/176

245/182

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

1.8T 20V Ported CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

96/83

139/-

179/146

208/-

228/193

242/-

250/223

256/-

255/250

2.0l 16V soch

N/A

32mm/28.1mm

N/A

60/55

91/93

128/114

149/118

165/123

170/128

177/130

2.0l 16V Joshua SF300

N/A

32mm/28.1mm

N/A

68/61

101/91

131/116

143/129

163/136

168/138

171/141

2.0l 16V CCH

N/A

32mm/28.1mm

N/A

195/150

2.0l 16V Ported CCH

N/A

32mm/28.1mm

N/A

231/178

2.0 8V '94 German X-Flow

N/A

Stock

N/A

52/38

100/72

130/88

149/94

-/97

2.0 8V X-Flow

N/A

54/39

102/75

129/90

136/96

137/97

2.0 8V X-Flow Ported

N/A

174/-

8V X-Flow Ported

N/A

Stock

N/A

183/-

188/-

8V Early Casting CCH

N/A

Stock

N/A

133/101

8V Early Casting Ported CCH

N/A

Stock

N/A

161/131

8V Cross Flow CCH

N/A

Stock

N/A

139/107

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

8V Cross Flow Ported CCH

N/A

Stock

N/A

165/138

12V VR6 CCH

N/A

39mm/ 34mm

N/A

157/145

12V VR6 Ported CCH

N/A

39mm/ 34mm

N/A

186/168

12V

N/A

39mm/ 34mm

N/A

148/137

R32 CNC Heads UK

N/A

1.303/ 1.188
100mm
Pipe

N/A

83/79

118/-

152/132

184/-

211/152

231/-

247/162

252/-

255/169

R32 Ported CNC Heads UK

N/A

1.303/ 1.188
100mm
Pipe

N/A

78/91

117/-

155/164

190/-

219/195

243/-

257/210

266/-

270/216

Cabriolets

N/A

57/49

97/90

130/113

139/131

148/141

Type 4 - 914 Mild Porting

N/A

48mm/-

N/A

209/-

Type 4 - LE160 Raby's Aircooled Technology

N/A

40mm/ 34mm

61/51

87/67

110/81

123/93

132/99

140/103

147/105

152/107

157/108

160/109

Type 4 - LE180 914 2.0 Raby's Aircooled Technology

N/A

42mm/ 36mm

58/52

84/72

112/91

136/107

155/119

168/126

171/132

176/135

181/138

186/140

190/141

Type 4 - LE190 Raby's Aircooled Technology

N/A

44mm/ 36mm

60/51

87/70

116/88

142/102

160/114

171/123

182/130

188/135

192/140

196/142

Type 4 - LE200 Raby's Aircooled Technology

N/A

44mm/ 36mm

62/51

88/70

116/88

143/102

164/114

180/123

189/130

196/135

200/140

205/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Type 4 - MassIVe Raby's Aircooled Technology

N/A

155/122

247/190

280/222

Arao Engineering 16V

N/A

35.5mm/ 32mm

N/A

105/79

189/125

232/176

263/204

271/217

265/225

The following 12V VR6 Heads are different than any other heads that I have listed.
They have been flow with the short (about 4 inches) 90 degree manifold during the tests.
The intake and exhaust ports are basically the same way---3 short and 3 long ports. The short port is listed first.

12V VR6 Stock Short Bill Jones

N/A

39mm/ 34mm

N/A

56/43

104/84

130/109

150/114

157/115

12V VR6 Stock Long Bill Jones

N/A

39mm/ 34mm

N/A

56/45

106/89

130/117

152/131

159/134

12V VR6 Ported Short Bill Jones

N/A

39mm/ 34mm

N/A

55/47

108/87

130/111

149/125

155/129

12V VR6 Ported Long Bill Jones

N/A

39mm/ 34mm

N/A

55/47

106/89

130/113

154/128

162/134

Did valve job to max size of stock valves, backcut int 33x27 & exh 37x29---ported the manifold from 1.400" out to 1.500".

12V VR6 Ported Short Bill Jones

N/A

39mm/ 34mm

N/A

53/47

102/86

143/109

161/119

168/127

12V VR6 Ported Long Bill Jones

N/A

39mm/ 34mm

N/A

52/52

101/94

145/115

165/128

173/138

_VW

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

2.0l 8v gti Ported /Andre' Norrback

N/A

40mm/33mm
85mm

N/A

45/-

81/-

114/-

145/-

164/-

176/-

177/-

Golf Ported /Andre' Norrback

N/A

40mm/34mm
85mm

N/A

42/-

75/-

103/-

128/-

148/-

165/-

178/-

182/-

Golf 8v MORGO Systems

N/A

40mm/33mm

N/A

39/33

68/63

100/82

114/93

117/95

118/97

119/98

120/99

182/-

Golf 8v Ported MORGO Systems

N/A

40mm/33mm

N/A

44/32

79/70

114/91

140/111

148/117

153/123

158/127

160/130

160/132

160/-

182/-

1.9l TDI VE NPS

N/A

36mm/31.4mm
-
No Pipe

N/A

33/28

70/57

97/83

109/99

110/105

112/104

2.0l TDI NPS

N/A

29mm/25.5mm
-
No Pipe

N/A

57/58

97/88

118/99

117/103

120/105

2.0l TDI Ported NPS

N/A

29mm/25.5mm
-
No Pipe

N/A

61/54

111/94

130/111

141/118

146/122

148/123

Type 4 - Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

57/37

110/75

161/105

205/123

241/134

267/143

287/148

292/150

Type 4 - 2 Ported /Andre' Norrback

N/A

52mm/38mm
103mm
No Pipe

N/A

48/44

94/82

147/114

195/133

234/145

260/151

270/154

274/155

276/155

Type 4 - 3 Ported /Andre' Norrback

N/A

53mm/38mm
103mm
No Pipe

N/A

52/44

101/82

152/114

199/133

239/145

263/151

280/154

283/155

284/155

Type 4 - 4 Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

57/40

105/77

157/111

202/130

237/142

267/149

287/154

292/158

296/159

Type 4 - 5 Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

59/40

113/77

164/111

209/130

245/142

273/149

290/154

296/158

300/159

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Buell

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.560

.600

.700

Average

Stock Thunderstorm NPS

N/A

1.81/1.575
88 mm
No Pipe

57/53

121/101

173/131

203/150

207/161

209/161

Thunderstorm Ported NPS

N/A

1.81/1.575
88 mm
No Pipe

N/A

63/50

131/110

189/148

229/174

246/173

251/166

Stock Thunderstorm

N/A

1.81/1.58

N/A

57/49

117/95

164/139

194/156

204/161

Street Ported Thunderstorm

N/A

1.81/1.58

N/A

57/47

120/90

171/142

211/167

234/177

246/186

Harley-Davidson

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin HeadQuarters

N/A

1.84/-

N/A

60/-

127/-

181/-

204/-

211/-

213/-

Twin Ported HeadQuarters

N/A

1.90/-

N/A

62/-

132/-

192/-

229/-

238/-

Twin Cam Ported Bullet Cylinder Heads

N/A

1.841/1.574

N/A

98/92

196/163

274/206

295/219

300/223

Stock Twin Cam

N/A

1.841/1.574

N/A

61/57

124/104

180/132

196/143

199/152

202/157

'01 Twin Cam Ported Hillside Stage III SF120

N/A

1.90/-
3.875

N/A

80/-

162/-

231/-

288/-

286/-

289/-

291/-

'05 Stock Twin Cam

N/A

1.841/1.574

N/A

57/44

122/90

179/124

189/144

197/148

198/151

'05 Twin Cam Ported Dewy

N/A

1.90/1.574

N/A

63/44

137/89

207/146

218/156

213/162

214/168

'06 Stock Twin Cam

N/A

1.841/1.574

N/A

59/44

127/98

187/147

211/168

217/174

218/178

'06 Twin Cam Ported QHP

N/A

1.898/1.625

N/A

62/56

128/111

186/153

223/171

243/182

256/190

'06 Stock Twin Cam Atwood Performance SF600

N/A

1.841/1.574
-
1 3/4" Pipe

N/A

62/53

125/112

177/155

199/177

209/184

214/189

'06 Twin Cam Ported Atwood Performance Road Warrior SF600

N/A

1.90/1.574
3.875
1 3/4" Pipe

N/A

69/56

137/124

196/170

240/197

256/210

265/215

'06 Twin Cam Ported

N/A

1.90/1.61

N/A

80/59

137/116

203/168

246/198

254/210

255/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

'06 Twin Cam Ported Hot-Shot MotorWorks

N/A

1.90/-

N/A

87/-

156/-

213/-

251/-

274/-

282/-

'06-up S & S SF1020

N/A

1.805/1.575

N/A

216/192

'06-up Ported S & S SF1020

N/A

1.90/1.61

N/A

249/210

'12 Stock Twin Cam Steve Vigen 1.65 ID Radius Int

N/A

1.81/1.574
3.875
1 3/4" Pipe

N/A

63/52

121/110

180/148

210/165

221/173

220/180

'13 Twin Cam Dirt Track Stage 1 Steve Vigen 1.65 ID Radius Int 7mm stems FlowData

N/A

1.85/1.61
3.75
1 3/4" Pipe

N/A

75/62

154/137

211/193

248/225

256/235

260/236

'15 Twin Cam Dirt Track Steve Vigen 1.75 ID Radius 5/16 stems FlowData

N/A

1.94/1.61
3.75
1 3/4" Pipe

N/A

64/61

144/124

211/183

254/223

267/242

275/244

Twin Cam R & R Castings / HYPerformance

N/A

1.94/1.625

N/A

65/50

134/104

192/149

237/185

263/189

281/191

Twin Cam 88 Ported Hardy

N/A

66/54

130/117

192/159

236/180

247/194

247/201

Twin Cam 88 Ported FLO Headworks

N/A

1.937/1.687

100

61/60

122/120

190/157

212/188

231/210

Twin Cam 88 CNC M2 Race Systems

86/-

1.90/1.63
3.875

202/172

232/195

252/225

Twin Cam 88 Ported Branch

N/A

266/-

Twin Cam Ported Louthan

N/A

1.90/1.615

N/A

220/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin Cam Ported Louthan

N/A

1.94/1.615

N/A

227/-

Twin Cam ET Performance

N/A

-
3.875

N/A

64/50

127/104

179/147

206/163

200/169

202/171

Twin Cam Ported ET Performance

N/A

1.90/1.60
3.875

N/A

69/55

132/120

203/163

251/188

263/200

269/208

Twin Cam Ported ET Performance

N/A

2.00/1.60
3.875

N/A

68/53

149/117

214/156

265/186

289/204

299/211

Twin Cam BC Heads

N/A

1.84/1.57

N/A

63/47

124/105

168/138

185/154

187/166

189/168

Twin Cam Ported BC Heads

N/A

1.90/1.567

N/A

59/46

124/96

179/138

222/180

236/208

240/219

Twin Cam Ported BC Heads

N/A

2.00/1.58

N/A

63/48

134/100

193/139

238/168

262/182

273/193

280/202

Twin Cam Ported BC Heads

N/A

2.00/1.58

N/A

64/51

136/116

192/156

240/184

268/201

280/210

287/214

Twin Cam Ported Revolution Performance Stage 1

N/A

1.84/1.575

N/A

83/61

151/120

201/165

244/184

257/190

259/195

Twin Cam Ported Revolution Performance Stage 2

N/A

1.90/1.61

N/A

73/57

148/104

205/155

249/184

261/194

265/200

268/200

Twin Cam Ported Revolution Performance Stage 3

N/A

2.00/1.63

N/A

64/53

135/112

203/156

240/187

264/201

283/211

294/213

Twin Cam Smithberg Racing

N/A

1.84/-

N/A

68/-

132/-

186/-

208/-

203/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin Cam Ported Smithberg Racing

N/A

1.84/1.56
3.75
No Pipe

N/A

73/50

140/104

206/151

248/186

269/199

Twin Cam 99 Atwood Performance SF600

N/A

1.841/1.574
3.875
1 3/3" Pipe

N/A

65/46

122/102

171/143

191/161

189/168

190/171

Twin Cam 99 Ported Atwood Performance Stage I SF600

N/A

1.841/1.574
3.875
1 3/4" Pipe

N/A

68/56

133/117

191/164

231/188

248/199

251/205

Twin Cam 99 Ported Atwood Performance Road Warrior SF600

N/A

1.90/1.574
3.875
1 3/4" Pipe

N/A

69/51

133/123

195/170

236/198

255/211

265/213

Screaming Eagle Twin Cam

87/70

N/A

Screaming Eagle Twin Cam

N/A

219/-

Screaming Eagle Smithberg Racing

N/A

1.90/-

N/A

61/-

126/-

188/-

228/-

246/-

251/-

Screaming Eagle Otto

N/A

1.90/1.625

N/A

59/57

123/107

185/148

220/170

231/173

228/175

Screaming Eagle Otto Clean Up Port Intake

N/A

1.90/1.625

N/A

59/44

127/95

190/150

229/178

249/184

262/184

Screaming Eagle HeadQuarters

N/A

1.90/-

N/A

55/-

112/-

161/-

199/-

228/-

244/-

Screaming Eagle Ported HeadQuarters

N/A

1.90/-

N/A

60/-

120/-

167/-

204/-

233/-

251/-

Screaming Eagle Twin Cam Ported Louthan

N/A

248/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Screaming Eagle 103 Twin Cam

95/73

N/A

Screaming Eagle 103 Twin Cam ET Performance

N/A

-
3.875

N/A

68/60

131/117

194/156

226/183

238/194

235/198

Screaming Eagle 103 Twin Cam Ported ET Performance

N/A

1.94/1.60
3.875

N/A

72/56

135/115

207/150

258/176

276/195

279/213

Screaming Eagle 103 Twin Cam Ported Hal's Speed Shop

N/A

1.80/-

N/A

283/-

Screaming Eagle Twin Cam 120

107/78

N/A

Screaming Eagle Twin Cam 120

N/A

2.08/1.625

100

62/45

131/86

188/117

221/136

234/147

244/148

Screaming Eagle Twin Cam 120 Ported FLO Headworks

N/A

2.08/1.625

100

67/62

138/94

193/137

228/172

243/199

253/216

Ironhead Sportster Ported FLO Headworks

N/A

1.937/1.75

N/A

60/59

117/94

164/128

191/152

200/168

Panhead NPS

N/A

1.95/1.75
-
No Pipe

N/A

56/47

113/90

153/129

170/156

174/170

Panhead and Knuckhead Ported FLO Headworks

N/A

1.937/1.75

N/A

55/54

112/112

156/139

180/163

192/177

Shovelhead BC Heads

N/A

1.937/1.75

N/A

66/51

133/91

168/120

184/129

187/134

189/136

Shovelhead Ported BC Heads

N/A

60/47

134/102

176/137

213/152

241/174

241/192

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Shovelhead Ported FLO Headworks

N/A

1.937/1.75

N/A

61/56

130/115

182/138

217/167

234/192

XL 883

N/A

1.585/1.38

N/A

50/-

105/-

154/-

169/-

Evo Sportster 883 Ported Hardy

N/A

58/-

120/-

175/-

209/-

217/-

Evo Sportster 883 Ported FLO Headworks

N/A

1.75/1.50

N/A

51/47

110/97

166/147

200/176

213/183

Stock 1200 Evo Sportster

N/A

68/-

115/-

166/-

193/-

198/-

1200 EVO Sportster Ported FLO Headworks

N/A

1.812/1.562

N/A

57/51

120/102

176/154

213/181

228/192

1200 Sportster Ported ET Performane

N/A

1.90/1.60
3.500

N/A

67/61

134/121

186/159

226/185

249/200

257/210

Evo Big Twin Ported FLO Headworks

N/A

1.937/1.687

N/A

62/55

124/119

188/156

225/184

234/207

Evo Ported ET Performane

N/A

1.90/1.60
3.50

N/A

74/55

139/120

201/158

244/189

260/201

263/206

Evo Ported ET Performane

N/A

2.00/1.60
3.812

N/A

68/59

151/117

217/154

261/191

275/201

279/202

Evo BC Heads

N/A

67/59

128/108

174/137

201/153

206/163

211/172

Evo Ported BC Heads D Exhaust

N/A

63/51

128/109

184/152

211/179

230/200

234/214

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

S/C Twin Cam Stock

N/A

1.94/1.60
3.875

N/A

68/60

131/117

194/156

226/183

238/194

235/198

S/C Twin Cam Ported ET Performane

N/A

1.94/1.60
3.875

N/A

70/56

133/115

202/157

247/186

267/204

276/213

ARAO Evo Billet 4 Valve Alum

N/A

1.72/1.476

N/A

122/111

226/184

286/225

308/241

312/247

317/248

Edelbrock Performer 1200 EVO Sportster (OLD) Alum

N/A

1.85/1.61

67/64

127/118

171/145

206/168

232/183

250/194

Edelbrock Performer EVO big Twin (OLD) Alum

N/A

1.85/1.61

70/67

129/118

189/145

215/168

248/183

251/194

Edelbrock Performer RPM CNC Evo big Twin (OLD) Alum

N/A

1.94/1.625

72/88

74/68

139/118

192/150

226/170

260/185

277/198

Edelbrock 1692, 1693, 1695, 1696 Performer RPM Sportster Alum

N/A

1.85/1.61

63/57

126/101

172/132

208/154

229/170

246/181

Edelbrock 3021, 3022 Performer RPM EVO Big Bore CNC Alum

N/A

2.00/1.625

83/92

68/61

137/113

195/153

238/176

269/185

283/197

Edelbrock 1602, 1603, 1615, 1616 Performer EVO 80" Alum

N/A

1.85/1.61

63/58

130/105

187/145

225/165

244/179

251/188

Edelbrock 1604, 1606, 1607, 1624 Performer EVO 80" & up CNC Alum

N/A

1.94/1.625

69/60

136/111

192/150

233/170

265/183

275/193

Edelbrock 1687, 1688, 1694, 1697 Performer RPM Twin Cam CNC Alum

N/A

1.94/1.625

72/88

69/60

136/111

192/150

223/170

265/183

275/193

Revolution Performance Twin Cam 1.9

N/A

63/64

131/121

193/152

243/169

262/180

270/188

272/193

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Revolution Performance Twin Cam Stage 1

N/A

1.84/1.575

N/A

83/61

151/120

201/165

244/184

257/190

256/195

Revolution Performance Twin Cam 1.9 Stage 2

N/A

1.90/1.61

N/A

73/57

148/104

205/155

249/184

261/194

265/200

268/200

Revolution Performance Twin Cam Stage 3

N/A

2.00/1.63

N/A

64/53

135/112

203/157

240/187

264/201

283/211

294/213

Revolution Performance Billet Twin Cam

N/A

2.15/1.725

N/A

160/130

243/202

299/245

345/265

366/275

373/278

S & S Super Stock Twin Cam

N/A

1.94/1.757

79/89

279/-

S & S 107 Evo Ported ET Performance

N/A

2.08/1.60
4.155

N/A

71/53

153/117

224/172

277/204

300/220

306/226

S & S 113 Evo Ported ET Performance

N/A

2.08/1.60
4.155

N/A

68/54

140/117

210/156

267/198

298/217

307/224

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.68/1.90
-
No Pipe

N/A

161/-

283/-

382/-

471/-

540/-

592/-

623/-

633/-

646/-

654/-

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.68/1.90
-
No Pipe

N/A

168/-

287/-

383/-

474/-

546/-

600/-

634/-

654/-

671/-

675/-

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.725/2.00
5.25
No Pipe

N/A

165/120

279/188

379/233

468/282

535/323

600/351

642/366

671/371

691/375

Zipper Performance Billet Twin Cam

N/A

2.00/1.625

75/60

150/140

205/177

258/200

295/205

300/208

300/212

Zipper Performance Magnum Billet Twin Cam

N/A

2.10/1.715

75/60

153/140

250/200

300/237

342/253

350/273

358/288

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Honda_

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

Average

XL125

N/A

36/39

74/57

85/61

86/63

87/66

90/64

EX250

N/A

49/46

86/76

93/81

97/86

98/89

99/90

750

N/A

93/-

100/-

107/-

Welded GX200 Alum

N/A

26/-

44/-

58/-

72/-

83/-

93/-

104/-

111/-

113/-

Belmit Billet GX200 Alum

N/A

32mm/28mm

107/-

114/-

118/-

Belmit Billet GX200 Ported Alum

N/A

34mm/29mm

118/-

129/-

137/-

Belmit Billet GX200 Ported Canted Valve Alum

N/A

35mm/29mm
81mm
1.4" Pipe

32/23

67/56

99/87

126/112

148/121

155/125

161/126

166/127

169/127

172/127

_Honda

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

Average

Chinese copy 125cc Ported Erland Cox

N/A

27mm/23mm
52mm
No Pipe

N/A

16/12

30/23

42/32

54/41

63/48

72/54

77/58

80/59

Jawa

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

500 Speedway Ported /Andre' Norrback

N/A

34mm/29mm
90mm
No Pipe

N/A

64/51

129/110

175/146

198/172

209/188

213/198

214/202

216/204

Kawasaki

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1600cc Jet Ski Ported Kelford Cams

N/A

1.31/1.11

N/A

80/74

162/122

193/137

209/146

211/152

214/156

215/158

217/159

STX 15F Jet Ski Ported Kelford Cams Exhaust Valve +1mmOS

N/A

33.4mm/ 29.3mm

N/A

41/37

83/81

129/121

167/144

204/157

227/162

238/164

247/165

GPz11 83-85 Stock Cavanaugh Racing Alum

N/A

38mm/32mm

N/A

139/-

KZ 900 Stock Cavanaugh Racing Alum

N/A

36mm/30mm

N/A

113/-

J 998 Stock Cavanaugh Racing Alum

N/A

37mm/31mm

N/A

117/-

ZX-12 Competition CNC Alum

N/A

33.4mm/ 28.35mm

N/A

175/127

178/129

183/129

ZX-12 Ported Competition CNC Alum

N/A

33.4mm/ 28.35mm

N/A

175/135

200/143

206/153

ZX-12 Alum

N/A

33.4mm/ 28.35mm
83mm

N/A

88/-

169/-

200/-

223/-

228/-

235/-

239/-

242/-

ZX-14 Alum

N/A

33.4mm/ 28.3mm

66/-

135/-

195/-

214/-

ZX-14 Performance Porting Alum

N/A

33.4mm/-

N/A

74/-

147/-

206/-

239/-

Kohler

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.650

.700

Average

18 HP V-Twin Smithberg Racing

34/26

1.32/1.16
3.05
No Pipe

44/-

65/-

72/-

74/-

77/-

79/-

80/-

81/-

18 HP V-Twin Ported Smithberg Racing

42.5/31

1.45/1.20
3.05
No Pipe

45/37

67/52

85/61

96/69

106/77

114/83

120/87

125/92

127/95

128/98

129/99

130/100

KTM

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

510 Ported /Andre' Norrback Epoxy

N/A

35mm/30mm
98mm
No Pipe

N/A

67/-

138/-

204/-

234/-

254/-

262/-

525 Ported /Andre' Norrback Epoxy

N/A

36mm/30mm

N/A

76/-

148/-

211/-

248/-

259/-

265/-

270/-

Rotax

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

450 Ported /Andre' Norrback

N/A

38mm/31mm

N/A

74/-

148/-

219/-

256/-

280/-

286/-

288/-

Suzuki

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

.800

.900

Average

'86 GSXR 750

N/A

26mm/-

N/A

47/-

67/-

94/-

112/-

127/-

136/-

137/-

141/-

'86 GSXR 750 Ported

N/A

26mm/-

N/A

67/-

120/-

157/-

171/-

172/-

GS1100 CNC

N/A

31mm/ 27mm

N/A

MonStar Billet GS 22 Deg Alum

N/A

35mm/ 31mm

N/A

274/221

Vortec 2-Valve CNC Alum

N/A

47mm/ 39mm

N/A

267/-

Vortec II 2-Valve Alum

N/A

46mm/ 38mm

N/A

267/-

Vortec II 2-Valve Matt Smith's Head Ported by Darin Morgan SF600 Alum

N/A

46mm/ 39mm

N/A

117/109

195/153

259/187

295/206

313/212

321/213

322/214

321/216

4-Valve

N/A

30mm/ 24mm

N/A

217/-

Hayabusa Competition CNC Alum

143.4/44

33mm/ 27.5mm

19.2

224/153

231/155

235/158

Hayabusa Alum

N/A

33mm/ 27.5mm

18.8

145/121

202/147

228/157

Hayabusa Ported Alum

N/A

260/-

Hayabusa Ported Alum

N/A

282/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

.800

.900

Average

Hayabusa Ported Competition CNC Alum

149.6/50

33mm/ 27.5mm

196/143

221/157

248/172

257/177

Hayabusa Sabre Heads Alum

N/A

33mm/ 27.5mm
84mm
No Pipe

N/A

39/30

81/70

120/93

158/118

191/131

218/137

232/139

237/140

238/142

Hayabusa Ported Sabre Heads Alum

N/A

33mm/ 27.5mm
84mm
No Pipe

N/A

39/30

81/65

122/97

162/121

197/135

222/142

235/150

241/154

248/156

Hayabusa Ported Sabre Heads OS Valve Alum

N/A

34mm/ 28.4mm
84mm
No Pipe

N/A

41/35

82/71

123/110

162/132

198/148

227/156

240/162

250/165

252/169

Haya

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

Average

DR 800 Single MORGO Systems

N/A

Stock
-
Pipe

N/A

80/64

154/127

216/163

254/175

270/181

277/183

DR 800 Single Ported MORGO Systems

N/A

Stock
-
Pipe

N/A

89/68

169/126

228/163

281/182

310/193

315/199

Hayabusa Ported Alum

N/A

35mm/ 30.5mm

N/A

187/-

230/-

264/-

286/198

Triumph

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

Thruxton Ported Kelford Cams

N/A

1.30/1.10

N/A

41/33

82/71

125/104

164/136

197/155

220/168

227/173

235/176

239/178

Victory

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

Average

'08-up Cory Ackley/Rick Crawford

N/A

36mm/ 30.5mm
4.0
1 3/4" Pipe

N/A

100/89

196/156

235/182

255/193

261/196

'08-up Cory Ackley/Rick Crawford 3 angle VJ little blending back cut valve

N/A

36mm/ 30.5mm
4.0
1 3/4" Pipe

N/A

103/81

201/166

239/195

265/201

270/203

Yamaha

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

'03 Raptor 660 R CHW Alum

N/A

30mm/32mm

N/A

110/88

200/153

251/198

259/203

257/207

259/207

'03 Raptor 660 R Ported CHW Alum

N/A

31mm/33mm

N/A

119/88

172/132

222/183

254/210

271/223

278/222

281/223

285/222

_Yamaha

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

10mm

12mm

14mm

Average

YZ250F Greenslade Engineering

N/A

23mm/24.5mm

N/A

34/14

71/42

108/69

139/93

162/105

172/111

178/113

-/113

YZ250F Ported Greenslade Engineering

N/A

23mm/24.5mm

N/A

33/18

71/46

108/68

144/89

170/107

179/114

184/118

-/124

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

I-6 Ported Maxeffort

N/A

1.84/1.50

N/A

56/-

106/-

160/-

184/-

202/-

204/135

Geo Storm isuzu impulse performance parts