so i'm rebuilding a 6.2L diesel motor out of my '83 k5. i recently purchased it for 500 bux and am doing a complete rebuild and build up. anyway, today i was measuring the bore of the cylinders, and found that someone who previously owned the vehicle bored the cylinders .030 over (which makes for 384 ci) to 4.008, but the pistons are only at 3.985. This makes .023" of room for the pistons to play in the cylinder. My diesel manual allows for only about .004" of play - this is a huge difference. The motor had proper piston rings so that it held compression and whatnot, but there was a slight bit of wear on the piston skirts - not much, but some. My uncle, a mechanical engineer, said that it was minimal wear and that he wouldn't hesitate to just get a new set of the proper rings and use the pistons again, but I'm always interested in other opinions. So what would you do? Let me know your reasons and suggestions! Thanks for all your help!