I thought I remembered reading a post on this but I cant find it. I think Captain Negativity had mentioned something on it...I know a 6.4 block is a twin to a 6.0 by looking a the outside...is the deck hieght any different or is it all in the rods, pistons and crank? will a 6.0 intake manifold fit on a 6.4? if so then the 6.4 deck should be the same??? anybody ever looked into this?