there are actually 2 places that make kits, hinson supercars and granny's speed shop. either way, I'm gonna have to do a little changing to either since mine is a vert I believe I know what engine I'm getting, and that is a 350 out of a 1970 model truck, 2 bolt mains. I'm replacing crank, rods, pistons and everything else that can give me a little edge over the next guy. i'm still on the hunt for a 700 4r automatic tranny so i'll have overdrive, and will be able to drive on the street with my 4.11:1 rear end