PRC 15-Degree 220cc As-Cast Cathedral Heads & Cam Package

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. Click Here to SEE why we build better heads! 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 Rated To .660" Lift 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 their existing components. Flow Data: 4.00" Flow Plate - No Exhaust Pipe