If you like Pontiac’s the 400 engine bock is the way to go. This is one of Doug’s favorite builds. No stock rods in this engine we use only H-Beam rods. For a built proof bottom end, we also use a 1 pc rear main seal no oil leaks here. Give Steve a call and he will be happy to help design something just for you 800-267-3940. Also, check out our Facebook page @customcrateengines
Does this engine look like a good fit?