PRC 15-Degree 220cc As-Cast Cathedral Heads

PRC 15-Degree 220cc As-Cast Cathedral Heads

For use on 3.820 or bigger bore

Precision Race Components all new cylinder head castings completed with 220cc runners. For stock cubic inch 4.8/5.3/LS1/LS2 applications requiring a stock valve angle LS cylinder head with extra thick decks comparable to stock piston to valve.

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

Features:

• 220cc Intake Runners
• 84cc Exhaust Runners
• Designed as a Bolt On Cylinder Head With Minimal Change to Pushrod Length
• TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
• 64cc CNC Machined Chambers
• CHE Bronze Guides
• 2.045″ Stainless Intake Valves / 1.600″ Stainless Exhaust Valves
• Factory Rocker Friendly!!
• Extra Thick Deck Surfaces For Power Adders

The all new 220cc cylinder head is finally available for customers looking for a bolt on 15 degree LS cathedral cylinder head. Think of this cylinder head as the ultimate 15 degree LS1/LS2 cylinder heads for guys wanting a stronger replacement to the LS1 / LS6 / LS2 factory casting. The perfect head for guys wanting a aftermarket casting that will retain the use of all there existing components.

Flow Data:

4.00″ Flow Plate – No Exhaust Pipe

• .100″ Lift: Intake Flow 67 CFM / Exhaust Flow 55 CFM
• .200″ Lift: Intake Flow 145 CFM / Exhaust Flow 113 CFM
• .300″ Lift: Intake Flow 207 CFM / Exhaust Flow 166 CFM
• .400″ Lift: Intake Flow 252 CFM / Exhaust Flow 200 CFM
• .500″ Lift: Intake Flow 292 CFM / Exhaust Flow 215 CFM
• .600″ Lift: Intake Flow 304 CFM / Exhaust Flow 226 CFM
• .650″ Lift: Intake Flow 311 CFM / Exhaust Flow 228 CFM