LS SERIES PRC 237CC CNC PORTED CYLINDER HEADS, CATHEDRAL PORT, TSP ^Sale

Precision Race Components all new cylinder head castings completed with 237cc runners. For 370 cubic inch and larger applications with 4.00"+ bore sizing.

 

 

Features: 

• 237cc Fully CNC Ported Intake Runners
• 84cc Fully CNC Ported Exhaust Runners
• TSP Dual Spring Kit w/ PAC Springs Rated To .660" Lift
• 68cc CNC Machined Chambers
• 2.100" Intake / 1.600" Stainless Valves
• Factory Rocker Friendly!!*
• ***NOW AVAILABLE WITH HOLLOW STEM INTAKE VALVES!!! SAVES APPROXIMATELY 15 Grams!!!***

The all new 237cc cylinder head is finally available for customers looking for the pinnacle of LS cathedral port performance.   The new 237cc port has been flow bench tested to flow over 330cfm & can support everything from smaller camshaft street engines all the way to race engines. This cylinder head is a combination of a max effort high flowing port combined.  

 

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