This may be a dumb question but its always better to ask and be sure. I have a Pontiac 350, if I want to make it into a 400, what all would have to be done to make the crank n all fit? Are the crank bearings the same size as the 350 crank? Any clearancing need to be done? This is my first pontiac build I have always done Chevys so forgive me in my lack of knowledge.