Generation IV Internal Engine - All pro heads work with stock pistons?



PDA
mattz06
10-23-2009, 03:03 PM
I have a 2006 Z06, wanting to pull my LS7 heads and do All Pro heads but I've heard that with the all pros having the valves in a different location that there would be piston to valve issues and I'd have to either change or notch the pistons. Anyone running these heads on a stock short block? Cam size specs?

99blancoSS
10-23-2009, 04:32 PM
You heard correct it is slightly different,, you will need to check ptv you might not need to flycut depending on the cam gforce did one a short while back check with them.
mattz06
10-23-2009, 05:14 PM
the more I look through old posts etc, it seems like I am better off throwing a cam in my ls7 and springs! Looks like the hand ported ls7 heads and even the all pro, & etp are only getting less than 20 more RWHP. looks like if it were a bigger cube solid roller it'd be worth doing the other heads.

LS6427
10-23-2009, 08:29 PM
I have a 2006 Z06, wanting to pull my LS7 heads and do All Pro heads but I've heard that with the all pros having the valves in a different location that there would be piston to valve issues and I'd have to either change or notch the pistons. Anyone running these heads on a stock short block? Cam size specs?

Bro, people are making over 600 RWHP with cam upgrades, exhaust upgrade, porting their LS7 heads and LS7 intakes and a tune. Don't waste your money on All-Pros...no need.

Where do you live?

.