PRC As-Cast 225cc LS1/LS2 Cathedral Heads

PRC As-Cast 225cc LS1/LS2 Cathedral Heads

Precision Race Components all new as-cast cylinder heads completed with CNC machined chambers & valve guides. For LS1/LS2 applications requiring a high flow aftermarket cylinder head at a unbelievable price!

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MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!

Features:

• As-Cast 225cc Intake Runners With CNC Machined Chambers & Valve Guides For Unmatched Flow!
• Small Bore Configurations for Extra Compression Applications While Keeping Good Piston to Valve Clearance
• 62cc CNC Machined Chambers
• 2.065″ Stainless Intake Valves / 1.600″ Stainless Exhaust Valves
• Utilizes Factory LS1 Rocker Arms
• TSP .660 Dual Spring Kit w/ PAC Valve Springs and Titanium Retainers!

The all new PRC 225cc As-Cast cylinder heads are finally available for customers looking for the ultimate as-cast cathedral LS heads available. The new PRC as-cast intake port has been flow bench tested to flow over 320cfm & can support everything from smaller camshaft street engines all the way to all out race engines. This cylinder head is a combination of a max-effort, high-flowing port combined with a smaller chamber designed for max power in stock cube applications.

Flow Data (4.00″ Flow Plate – No Exhaust Pipe):

• .100″ Lift: Intake Flow 68 CFM / Exhaust Flow 56 CFM
• .200″ Lift: Intake Flow 145 CFM / Exhaust Flow 113 CFM
• .300″ Lift: Intake Flow 210 CFM / Exhaust Flow 164 CFM
• .400″ Lift: Intake Flow 257 CFM / Exhaust Flow 200 CFM
• .500″ Lift: Intake Flow 300 CFM / Exhaust Flow 214 CFM
• .600″ Lift: Intake Flow 318 CFM / Exhaust Flow 229 CFM
• .650″ Lift: Intake Flow 321 CFM / Exhaust Flow 230 CFM