high silicon pistons have virtually no growth so vq bore should be max 95.530 after a fresh hone , wear limit is 95.730 and can be run if you dont mind a little slap.95.730 with standard pistons lifespan..... who knows.one way to maximize life is to avoid too short of a piston skirt in a loose motor,it will help with rock.if its too loose you might even want a piston that does grow.somtimes the best part isnt always the best choice!

 

It's actually the other way around. Zero Silicon and low silicon pistons expand MORE than high silicon content pistons. Our factory pistons contain high silicon, and as such, require very small piston to wall clearnaces of about .0015

 

I was told stock is around 2.5 thousandths and that most forged manufacturers recommend 3-3.5. Mmost builders seem to run 4-4.5, some even as high as 5.

 

Sharif, Since your here, can you tell us your piston ring gap strategy?

 

Every engine builder is going to have a difference strategy...its much like an engine break-in strategy. Ours isnt necessarily any better than someone else's, it just how we prefer to build them. The gap is very depedent on the type of ring used; Chrome, iron, steel..etc..etc. It is also highly dependent on how the engine will be used; turbo, nitrous, track usage, NA all have different strategies. So I would rather not throw out numbers, becuase there isnt one proper gap for all pistons, rings, and usages.

 

im a dysletic typer my bad