I'm gonna buy a rebuild kit from Summit, and I need to know the difference before I call. I'm rebuilding the engine for Nitrous purposes, so which would be better? Thanx guys.

 

i would go with forged.

 

forged is a stronger then hyper. ... if ur goin for a motor thats gunna put out over 400+ hp... i would deff. get forged....

 

If they are using KB Silv-o-lite Hyperutectic pistons, you'll be fine with just about any amount of nitrous yuo throw at it. It is documented on their website somewhere that they have run a 400 shot of Nitrous using their pistons. You must tell your builder that you are going to be running juice though. The rings need to be gapped a little differently or the pistons WILL fail however, if they are gapped correctly, you wont have any problems. I have heard this from a couple expereinced builders, as well as the guy I had build my engine.

 

Thanks guys.