Stock petcock will not work, totally different method of attachment. Well I guess the real answer would be, it depends on how much work you want to do lol. Petcocks that will fit on a sporty tank are only 20ish bucks so that is a lot easier to do. You'll have to cut off the stock tank front two mounts and possibly mod the center of the tank to allow for the engine to frame mounting bolts. I will have more photos of this after this next week.