If you are wanting to save some weight and still use the GM style master cylinder, this is the ticket. This unpolished aluminum master cylinder has a 1" bore, 3/8"-24 IFF outlets on both sides, and can be used with manual or power brakes.
Pushrod NOT included. Accomodates mount studs from 3" center-to-center minimum to 3-1/4" center-to-center maximum.
Learn more about selecting the proper master cylinder for your vehicle by reading our tech article, Brake System Selection.