hi. If the block was a screwup from the foundry it could have been overbored from 4.05 to 4.07 than bored .060 to get to 4.132
I retired as a jouneyman diemaker and have seen screwups repeired typical of this. Just a thought. Remember the pintos and mustang 2's with the flexplates and trans mounts etc. what a mess they were aay. Will go out and play Columbo some more. Thanx Phil p.s. The bearings were in good shape and showed signs of wear. So the engine appears to have ran at some point.