Brawler LS3 Style CNC Ported Cylinder Heads w/ TSP .660" Spring Kit and Titanium Retainers

Introducing our Brawler Series CNC LS3 Heads! Our goal with the Brawler series cylinder heads are to provide a standardized on the shelf, in-stock cylinder that can ship out very quickly and to provide our customers with an incredible bargain! If you are looking for a great replacement/upgraded LS3-style cylinder head, look no further than these fully CNC ported Brawler cylinder heads! These are inspired from a factory GM LS3 cylinder head casting but with our tried and true CNC porting program. Equipped with our Stainless Steel valves and TSP/PAC Dual .660 Spring kit with Titanium Retainers, this new cylinder head option provides maximum value for customers wanting to upgrade from stock cylinder heads on a budget.  Features:   Same CNC Porting As PRC LS3 Heads (257cc Intake port) CNC Valve Job 68cc Combustion Chamber TSP .660 Spring Kit TSP Titanium Retainers TSP Stainless Steel Valves 2.165" Hollow Stem intake, 1.60" stainless exhaust Fully Assembled and Tested Dyno Tested 25+HP Gains Over Stock 6.2L Cylinder Heads!  PRC LS3 Intake  PRC LS3 Exhaust        cfm  cfm  .200    154  115  .300    223  170  .400    282  198  .500      324  211  .600      351  228  .650    358  232