Power advantage between Ford 351, Mopar 340 and Chevy 350??

If you made everything as even as possible, it comes down to air flow in and out with the key to these engines being the cylinder heads.

If you take advantage of our .904 lifter diameter where the other two can not, you would have a good edge in what is otherwise all as delivered stock engines for this comparison.

The Ford Cleveland 4V head is that engines strong point which pretty much buries everyone else’s head. That would be a tough one to overcome on a “A Cast Head.”