Originally Posted by second 70
That's a full water jacket mega block. The siamese block has Mopar cast in it above the number.


Thanks. Things are starting to make some sense

1970 4spd Superbird, '69 Charger 500 Daytona clone,2015 Hellcat 6-spd B-5 Blue,1968 572 Hemi Charger,70 GTX 535 6-pac 4 spd,69 GTX 440 4-speed Super Trac Pac Car, 1973 383 Barracuda, and a couple Cummins