PRC 6-Bolt 265cc LS7 w/ Titanium Intake/Hollow Stem Exhaust Valves, TSP .660" Dual Spring Kit w/ Ti Retainers

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• PRC 6-Bolt LS7 Cylinder Heads with Thicker Deck Surface
• Will Work on Both Standard GM 4-Bolt & Aftermarket LSx / RHS 6-Bolt Style Engine Blocks
• 2.205" Titanium Intake Valves/1.610" Stainless Exhaust Valves
• TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
• CHE Bronze Guides
• Completely Assembled in the USA
  

Extensive CNC and dyno testing has resulted in one of the most affordable and powerful LS7-based cylinder heads available! Flowing up to 35 CFM more than the stock GM LS7 head, the all-new PRC cylinder heads offer both unmatched power and airflow!   

 

Flow Data:  @ 4.125" Bore Plate  Superflow 600

	LS7  Intake	LS7 Exhaust	PRC 265cc  LS7 Intake	PRC LS7 Exhaust
.200	161	114	169	119
.300	227	171	248	179
.400	291	193	308	211
.500	330	203	351	224
.600	351	209	383	235
.650	353	204	388	241
.700	353	209	393	246

 **Valve spring lift ratings are based on using titanium intake valves.