Help with 413 Build please

Thanks for all of the insight guys. I know that if I wanted to bore the block that much, it would need to be sonic checked. I'm not going to look for a 400 block, or a 383 cuz I already have the 413. I will end up getting custom slugs as I've found piston selection is basically no existent. I don't want to build what everyone else has already built, plus my father is about to pull his race 440, and give that to me in a year or so. For now I want to build my 413, for the coolness different factor, and see how it does in my dart. I'm going to check the heads out a little more, and try to get some pics to post up for you all. Again thanks for the advice. As a side note, I never thought about stroking a 318, to a 426, that might be a cool thing to play with as well.