Destroked Small Block?

Consider this 4 bolt main 1970 318 with hardblock and 3.97 bore or 60 over with 3.20 stroke and lite rods and pistons and about 12.5.1 compression! !!!


The ONLY 318 4 bolt block is an X block. Did you find one? If so, lucky you.

If it's just a 318 someone scabbed 4 bolt caps on run from it. If you RPm it much it will pull the main webs out.