Thats a good price for pistons, I had to go look them up, but those are cast
not forged, on some other forums guys are running them high, like 12 PSI
and more, and they say they are holding, they also say the pistons are noisy
and sound like a diesel, but that was from large clearances like .035 for heat
expansion, I think that's a little wide, but these are cast, and will expand more
than forged pistons.
I paid about $400 for forged pistons, and those didn't include rings
Go easy on the boost, no more than 8 PSI boost on these would
be my advice, but these could be those new Hypereutectic piston type
too and those are stock in new Chevrolet vehicles
Wild