what is your reason for changing the bearings? just to freshin up, or did you have rods knocking? if you had knocking, you need to check your crank and rods for wear and damage. if they're worn then you should go with a crank kit, and get you rods resized at a machine shop. either way you should go with after market bearings and then you wont have to worry bout all them special sized oem bearings. also you should check your bearing fit with plastiguage, then you'll be sure it's right.