I have sent them over sized pistons and they can bore it and replate it over sized!
I have had a 580 bored out to 625? or so
Comes back even better than new!
I would too but social security doesn't leave enough money at the end of the month.
If they give us another stimulus check, then I'm all in for rebore on both side .
For now, we're gonna try clean with muriatic and hone it, if it won't hone i'll get a used one.
I only have a decent caliper for measuring but both cyl seem to be 62mm.
Fan side is all original, AUS mark on piston , it just needs rings.
The damaged side has a replacement piston with STD marking.
I flipped the block upside down and spun the crank, nothing fell out.