There is more to it you need to get a converter as throttle body is different the reluctor wheel is different as wellhttp://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Product_Code=L460065397&Store_Code=LPE&Category_Code=C163#.UfGU98saySM
Fair nuf. But i gotta change my motor anyway cz of a bad piston ring. The difference between an ls1 and l76 is about $533 over where i am. So i figured if its going to be just a straight swap, might as well get me the 18 extra cubes.