Ill be getting some patriot 5.7 perimeter bolt heads in the near future.

I was wondering which valve size would be best in my car.

2.02/1.57 or 2.055/1.60

pro's and cons of each? power differences?
Im on stock cubes/224 cam/full bolt on/m6

thanks a lot

 

Are you going to run a larger cam?
If not stick with the smaller valves.

Cons of larger valves is shrouding. Bigger is not always better

 

Come to find out they will mill them or make them any cc chamber I would like for free.

So....Should I have them changed?

What cc? Any milling?

It is a daily driver, I just want the most streetable power I can get out of these heads.

Ill be using stock head gaskets

 

I have 2.02 valves in A.S. heads. The one advantage was that I went from a 224 cam to a Futral F13 without having to worring about cleareance that might have been an issue with a 2.05 valve.
The car made good power with the small valves.

 

If you want smaller chambers, just get LS6 or 5.3L heads. Why mess with valvetrain geometry when you can get heads cast with smaller chambers and retain factory geometry?

Might want to check out the PRC heads Texas Speed is selling CHEAP.