I thinking of building a LS3/L92 stroker motor to 415 to 418 CID to go into a my 1995 Caprice 9C1. The car is a daily driver and I want to produce 500 RWHP/500 RWTQ with good street manners.
I was thinking that since the engine will be apart during the rebuilding process. Is it worth porting (either hand or CNC) the LS3/L92 rectangular port heads or just do a valve and clean up job???
I ask this in light of the fact that Vengeance Racing is able to produce 520 RWHP/500 RWTQ on a 415 CID L92 on Pontiac GTO/Holden Monaro through a M6 with unported L92 heads and an unported L76 intake through careful cam selection and tuning.
I am particularly interested if just porting the exhaust side will enable me to run a single pattern cam so I can get the most area under the curve and great low and midrange torque, power and throttle response??
Along with the LSx conversion I want to swap in a 6L90E transmission with a uprated 2800 RPM stall TC.
B'klyn9C1
Brooklyn, NY
I was thinking that since the engine will be apart during the rebuilding process. Is it worth porting (either hand or CNC) the LS3/L92 rectangular port heads or just do a valve and clean up job???
I ask this in light of the fact that Vengeance Racing is able to produce 520 RWHP/500 RWTQ on a 415 CID L92 on Pontiac GTO/Holden Monaro through a M6 with unported L92 heads and an unported L76 intake through careful cam selection and tuning.
I am particularly interested if just porting the exhaust side will enable me to run a single pattern cam so I can get the most area under the curve and great low and midrange torque, power and throttle response??
Along with the LSx conversion I want to swap in a 6L90E transmission with a uprated 2800 RPM stall TC.
B'klyn9C1
Brooklyn, NY
