....and you're SURE.....like 100% and not 99 that's that measurement is correct? It just doesn't seem possible they are that close. I guess they could be. If they are, I'd be skeered to cut those pistons. That'd be gettin that crown pretty thin, IMO.
I’m 100% sure and I’m cutting them if I need to. I’ll wait for final valvetrain stuff from B3 then decide how much to cut em. Thankfully most of the material will come out of the thickest part of the crown then just kiss the thinnest part.