Mopar R3 Block
I bought and sold a couple like that one that a local circle track racer used and passed off to a friend to sell. I probably should have held on to the one because it had a real nice crank and set of Crower Rods with it. At least one of them was set up for W7 heads which he scraped as they were leakers. I probably lucked out selling it because I was about ready to buy a set of W7 heads off Ryan right before he went off the grid.