whenfoxforks-ruled said:Its early, whats with the mm measurements? Did I wake up in some foreign land? .002" is a good skirt clearance for oem or wiseco. These seemingly bizarre pistons, are they giving you them for free, or is it really worth it? That cylinder and head could have been on its way back from Forward Motion, fixed and ready to go. He can plate it or bore it more than likely. If you fork over the money for a new piston, and you know the od, a feeler gaige can accurately determine if the bore is good. Snap, or telescopic inside gauges can work, with the right touch, and an outside mic. Inside mics will work, good luck finding them, I do not believe even Starrett makes them anymore. A bore gauge, thats the ticket, or send it to Eric. The blind bearing remover is priceless, or taking it to the local shop, what a headache. Your "tool" worked, fantastic!