Thx Vikki. The engine I have now is a 1970 400. I know for the most part they are the same. But I was wanting to make sure before I get to deep in this rebuild that there are no mistakes. I might be buying a new crankshaft for this motor and need the exact specs on this motor. The crank as of right now has been undercut 0.010 and has some visible scarring. Summit has a new crank from eagle I might use. The motor is bored 30. Wish my ex-wife hadn't burned on my chiltons manuals... Never piss off a woman... Joe