i was freshening up an engine and adding a new cam for a friend, and ran into a problem. I was checking the main bearing clearance, and on the number 5 journal the measurement i got was .003. I'm trying to get in between .0020 and .0025. The crank was cut .010 in the past because it couldn't be polished. So right now i have .010 clevite bearings. What size do i need to get the desired measurement? part number would be great also. this is on a 97 vortec 350. Thanks