I built a 440 with them a while back. Real nice looking pistons. No immediate issues with them. About 50 gram heavier than a comparable Ross or Diamond.

I got a smoking deal on them through summit. Like $299 IIRC.

FWIW, I'm almost certain these are the same as 440Source house brand.

-Jim

I can fix it... my old man is a television repairman.
He's got the ultimate set of tools... I can fix it.

Currently Mopar-less