I've been sitting on a "rebuilt" (never started) engine for over 8 years now (I picked it up that way). Ok its time - my 71 needs help. To be safe I decided to tear it down and drop it all off at a machine shop for cleanup b/c I saw rust from sitting. Then the bad news, the "rebuild" was crap. The crank is actually bad (needs to be cut), it needs pistons, valves are worn - etc. Gee, glad I tore it down. Block: 3970010 (bottom end studded) Heads: 3947041 Ok, so now the question -- what would you build? a) rebuild it b) buy a crate motor (the base crate motor ~= about the same cost I was given for "a") c) since it needs crank work, pistons, rings, bearings anyway -- buy a complete bottom end assembly and make it a 383 Thoughts ? Rest of the drivetrain is a TH400 + 3.08 posi. Thanks!