PRC As-Cast 225cc LS1/LS2 Cathedral Heads 5.7 LS1/ LS2 6.0

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! As-Cast 225cc Intake Runners With CNC Machined Chambers & Valve Guides For Unmatched Flow! Large Bore Configurations for customers looking for bigger bores such as stroker or boost applications 68cc CNC Machined Chambers 2.065" Hollow Stem Intake / 1.600" Stainless Exhaust Valves Utilizes Factory LS1 Rocker Arms TSP .750" high rev spring kit with titanium retainers, spring seats, valve seals 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, hig