This is a used Mallory Sprint magneto part # 3931006, for a big block or small block Chevy. It does not come with the base that is in the picture. I bought this from Hallbros and they said they "spun the mag up with the coil from my race car and it produced good looking spark". Please call or text because I hardly will check this ad. Thanks

832-984-5903

Free shipping.

Thank you.