blue smoke on acceleration , dramatic increase

I struggle to see what BP could have done that would have caused replacement pistons to break?

Sounds like OP has something else going on causing the pistons to fail in the first place. Detonation? Timing? I'd suspect the EFI might have even unintentionally leaned out at some point.

I've been beating on my BPE shortblock for 5 years now with tons of abuse. The only things that broke happened when I sent a hardened washer down the intake. Replacement piston and ring set from BPE still going strong.
I thought I read he bought motor from another dude who lost a ring land on it already...so then he fixed the one...now he has two..same and the one next to it.. so sounds like rings butting...so who built that fkn motor. unless I'm missing something...'and i could be'.. but ...sounds like all the pistons should come out to be inspected and the rings opened at the very least, since original builder did it wrong.
If I missed a turn or twist in the story..let me know.
:thumbsup: