5/64 & 1/16th ring and max bore size

he has messured the clearance between the piston and the cylinder wall and it,s .003ths.I will find out what the size of the cylinders are, that is why I'm starting to question The direction he whats to go after a 1000K I find it hard to take that it would require a rebore which adds another 600$ to the bill.

Alan
.003 is fine (but as stated, what pistons?). by measure i mean he should have mic'd the bores, and measure the taper in them (widths at the top,middle,and bottom of the cylinder bore). can't just measure the piston/wall clearance. a good hone job would fix that. he has no way of knowing wether a .060" overbore is OK without sonic testing. IMO he's just running through the motions and giving you the bill.