I am currently in the middle of rebuilding my 82 323i. The engine is in the shop, but unfortunatly for me the pistons that are in there have worn beyond repair, and it looks like I am in for a new set. To get the best result I will have to go up .5 mm oversize. I will also need the new rings to fit the new bigger pistons. The crank will need new bearings as well (also oversize .25mm). Any info as to where I can get these parts new or used would be appreciated. Happy Holidays