I've run stock 360 cast cranks over 500HP and 7400 RPM. I've known Super Stock guys to push them harder. Never had a problem, famous last words. I was more concerned with the block at that point. The fret marks on the mating surfaces of the main caps to block told me they were dancing around.

I've always thought the 4.06 - 4.100 with a 3.79 or 3.80 crank was a nice combination. Good rod ratio, could rev it up.

Last edited by CMcAllister; 11/03/22 02:46 PM.
If the results don't match the theory, change the theory.