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Precision Race Components all new cylinder head castings completed with 237cc runners. For 370 cubic inch and larger applications with 4.00"+ bore sizing.
MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
Features:
- 237cc Fully CNC Ported Intake Runners
- 84cc Fully CNC Ported Exhaust Runners
- TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
- 68cc CNC Machined Chambers
- CHE Bronze Guides
- 2.100" Hollow Stem Intake Valve / 1.600" Stainless Exhaust Valves
- Factory Rocker Friendly!!
Flow Data:
4.030" Flow Plate - No Exhaust Pipe
LIFT | INTAKE FLOW | EXHAUST FLOW |
.100" | 66 CFM | 57 CFM |
.200" | 147 CFM | 117 CFM |
.300" | 225 CFM | 170 CFM |
.400" | 284 CFM | 206 CFM |
.500" | 325 CFM | 227 CFM |
.600" | 334 CFM | 235 CFM |
.650" | 339 CFM | 241 CFM |