is there a way to make the 81mm piston fit the 82.5mm bore safely? been working on the ghetto 20vt setup and the cast piston's are really bothering me. i have a spare set of ANN rods and pistons that are in great shape but getting them to fit the bore and be reliable is my concern. my AAN crank is wiped out and needs some serious machine shop attention that i cant really afford right now. anyone have any experience with this or attempt to do something like this? any input would be great. thanks.