I became a B- block believer with my A-body 451 build. A 440 .060 over is also a 451. But stands no chance. The mating of RB forged crank into a B-block is a marriage made in heaven. It's lighter rotating assembly with the smaller 400 mains made a big block that thinks its a small block. It also demonstrates why the Chevy 396 was more potent than nearly anything of simular cubes. It's the shorter deck. But with the 400/451 build? Just bigger and badder than 396. Due to far better head design and options. And of course. More cubes.
I'm very sure this is no secret. Especially in Mopar world.
