Gm Altonator high output

Description

Powerful Spx300 altonator I used it in my 01 grandprix for 3 weeks then sold the car took it out put it back in the box still have original box and paper work I'm only selling to get another altonator for my new truck will fit any gm300 engine I dident have supercharged engine so I don't know it it will fit the SC engine