I am curious to see who has chosen what and what thier results have been. I always here the debate between full or 3/4 groove mains, just curious. Mine have already been bought and coated(to make up for a tolerance issue). My machinist yesterday had a different opinion than I do, and he made some valid points. Although I believe him to be wrong when it comes to Mopars. He is actually not a fan of me converting this block to 440 mains either but understands why I want to do it. Think he is just real busy and it is more work So I thought coming here would help aid my debate with him.

Oh BTW those part numbers look real familiar