Cylinder Head Flow Data

Cylinder Head Flow Data

Wonder what heads to get? Only want to buy them once? Then you are in the right place. Here is a set of flow numbers from some of the most prominent cylinder head maufacturers for you to compare. Then you can decide what head will best fit your application and needs.

 

Stock

Holley

AFR165

AFR185

Canfield

Lift

Intake
 

Exh
 

Intake
 

Exh
 

Intake
 

Exh
 

Intake
 

Exh
 

Intake

Exh

0.100
 

48

41

60

57

60

51

63

51

70

54

0.200

92

78

119

95

123

118

129

118

152

102

0.300

130

95

166

126

186

153

189

153

203

132

0.400

141

102

202

152

225

178

234

178

242

171

0.500

155

106

219

196

250

185

267

186

261

190

Average Flow:
 

112.4

84.4

153.2

119.2

168.8

137

176.4

137

185.6

129.8

Area Of The Curve:
 

92.88

82

145.88

114

159.77

131.66

166.33

131.66

177.22

123.11

Diffrence in %:
 

0%

0%

36%

41.2%

51.1%

62.3%

56.9%

62.3%

65.1%

53.7%

 

 

 

GT-40X

Brodix 5.0

GT-40P

Windsor Jr.

Windsor Sr.

Lift

Intake

Exh

Intake

Exh

Intake

Exh

Intake

Exh

Intake

Exh

0.100

56

49

61

58

61

50

54

47

54

46

0.200

105

105

125

93

125

89

105

101

120

100

0.300

154

141

175

130

166

120

141

125

165

126

0.400

192

158

215

155

195

132

170

140

201

140

0.500

210

162

230

172

196

138

186

148

221

146

Average Flow:

143.4

123

161.2

121.6

148.6

105.8

131.2

112.2

152.2

111.6

Area Of The Curve:

136

118.66

153.55

116

143.33

102.22

125.11

108.22

144.55

107.7

Diffrence in %:

54.4%

45.7%

43.4%

44.1%

32.5%

25.3%

16.7%

32.9%

35.4%

32.2%

 

 

 

Edel (1.90)

Edel RPM

Avenger

BrodixTKR1(2.02)

Twisted Wedge

Lift

Intake

Exh

Intake

Exh

Intake

Exh

Intake

Exh

Intake

Exh

0.100

56

41

70

57

70

63

67

67

62

48

0.200

114

91

128

104

140

103

127

111

131

97

0.300

166

132

183

142

194

139

173

145

193

134

0.400

200

160

219

163

226

164

216

170

230

161

0.500

214

171

229

172

253

185

243

190

242

170

Average Flow:

150

119

165.8

127.6

176.6

130.8

165.2

136.6

171.6

123.6

Area Of The Curve:

142.88

113.22

158.77

122.66

168.11

124.77

156.55

130.66

163.77

117.55

Diffrence in %:

33.5%

40.9%

47.5%

51.1%

57.1%

54.9%

46.9%

61.8%

52.6%

46.4%



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