i'm looking for .020 over stock with compression around 9.5:1 (stock 5.3L heads). would be nice to get pistons with some beefy ring lands. i don't want to bore out to a ls1.

any companies that make these?

 

sure seems like alot of people want 5.3/4.8 bore forged pistons (and I am one of them!!!)

I'm surpised no company makes them, but I bet you could find forged slugs for some odd ball motor like a nailhead or something.

group buy?

 

I believe that diamond will custom make a set for you.