oh i dont know, diddnt plan on putting a stroker crank in at the time, diddnt want to spend the extra money at the moment, i just put 800$ into it and i figured what i was getting done to it would be plenty for now. Cant wait to get it back, its been out for a while, the previous owner had done some hack job port job himself or somthing and i think Jeff had to spend a little extra time fixing it.