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home » cylinder heads » chev sm block » racer pro 18°
RACER PRO 18°
- Intake valve 2.150 exhaust valve 1.600
- 247cc intake port volume
- 100cc exhaust port volume
- 65cc chamber volume
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Valve lift
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.100”
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.200”
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.300”
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.400”
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.500”
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.550”
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.600”
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.650”
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.700”
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.750”
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.800”
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Intake c.f.m.
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76
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158
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224
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273
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312
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322
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331
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337
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340
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342
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344
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E xhaust c.f.m
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60
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112
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155
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194
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233
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238
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241
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247
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250
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254
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257
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