All year model blaster crankshafts are completely interchangable, 88-06.
Vito's is the place to get the +3 stroker that does not require major work on the cases. The Hotrods +4 mm stroker can be purchased from any hotrods dealer but it requires quite a bit of work done to the cases (trenching) in order to fit and work. Basically, it needs more material removed from the cases than is left in two spots in order to work properly .