Aluminum Heads Chart

Aluminum Heads - Flow Chart
C.F.M.
Test Pressure - 28'

Valve Lift

.200

.300

.400

.500

.600

.700

.800

(Intake)

Stock:

121

178

212

225

233

-

-

HOT HEADS - Out of Box

125

191

241

259

274

-

-

HOT HEADS - Street Port:

125

200

261

287

313

-

-

HOT HEADS - Race Port

157

237

303

341

367

377

373

(Exhaust)

Stock:

97

128

145

159

160

-

-

HOT HEADS - Out of Box:

121

159

176

185

191

-

-

HOT HEADS - Street Port

129

171

185

205

211

-

-

HOT HEADS - Race Port

150

192 

220

250

259

264

267


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