500+ci Builder

I've always enjoyed building my own but you need a good machinest. Plenty of good deals on rotating assembles in about any cubes you want. The big decision that you have to make that drives the cost up is strengthen a factory block or go after market block. The power level you want to make, factory block should be fine and street worthy. By a book on stroking a big block and read the ins and outs before you let someone talk you into building an engine for you. You need to know something about it before you spend money that doesn't need to be spent.