Picked up a set of main bearings NOS..well sort of. They kind of look good?. I think the previous owner placed them in the block to test fit a crank. Some show SLIGHT scuffing.( that bay have happened from moving around in the box). I don't know weather to worry about this. I'm sure if I had test fit bearing they might show points were the crank rested on the bearings. What do you think ? got the set tri metal for $25.00 to the door.