I would say go for a small block if you are not sure what it is going in. That will give you a better selection of vehicles that you could mount it in later. I will say taht if you go for the small block try to get a roller block (86 or later) just to make things a little easier. Good luck. Let us know how everything turns out.[img]/phpBB/images/smiles/icon_smile.gif[/img]