i have a 5.3l whippled, z06 cam, Lt's, ory pipe, and i was thinking about getting a set of heads, which stage and what kind of gain can i expect.
thanks

 

Definaly power is in the heads. A Stage 1 would be plenty for your setup but they would need to be specificly for boost for the best application.

Nate

 

Sure is/are, WCCH is a sponsor and I know he has a nice 5.3 program, he has always treated me right

let us know what you decide to go with

 

Here's a link to a recent thread by BBT with some dyno graphs of his gains from some mild Stage I WCCH heads...seems worth it to me

https://www.performancetrucks.net/fo...d.php?t=356706

 

Anyone have before and after RWH dynos of the WCCH heads?

 

I agree. Make sure you shop for heads specific to blowers or turbos. You will not see the same gains as the NA folks but there will be some. I just posted the same question in the Forced Induction section.
Look for heads with emphasis on exhaust work and smoothed combustion chambers. Avoid shaved deck heads or ones that increase compression ratio, could cause detonation and KR. Stage 1 should do nicely. You could also look for some stock #317 - LQ9 heads, they have a larger combustion chamber, bigger intake valve, and "D" shaped exhaust port that will flow much better. They also bolt right up and have the exact same mounting pattern so the blower will slip right in. You can find them fairly cheap if you look around here or eBay ( about $200-300 if someone needs the cash ). My two cents....