A few of my thoughts to hopefully add some clarity and address some misconceptions.
Ron contacted me and started this thread with the purpose of building a 4.6 stroker based off a late-model coil pack head with the goal of making good low-end torque with a emphasis on reliability and to easily pass smog.
The engine consists of a Scat 3.985 stroke Crankshaft with a set of my steel bushed connecting rods, Bishop-Buehl/RaceTec 4032 forged pistons. The 0331 head is fully ported with stainless Chevy LS valves and springs, Harland Sharp rollers along with a very conservative Comp cam grind. The iIntake is port matched and opened up to except a 62 mm throttlebody.
I spoke with Mike at Lopers Performance today to clarify questions that I had along with giving me some feedback. He said that Ron nailed it with the choice of 27 pound injectors and confirmed that he made a high gear runs that netted 227HP and 396TQ to the rear wheels putting flywheel horse power at just over 300HP without having to go to 4000 RPM.
Mike said with more pulls and trimming the fuel the power and torque would've increased further.
At this point Ron's objectives were met and no more pulls or changes needed to be made.
Ron is still running his stock exhaust pipe, catalytic converter and muffler.
Don't hesitate to call me if anybody has any questions or would like to discuss stroker kit packages
Russ Pottenger
Bishop-Buehl Racing Engines
531 N. Lyall Avenue
West Covina, California 91790
Work (626) 967-1000
Cell (626) 673-2203
Email/PayPal:
[email protected]