This is a Brand new Square Lid GM Master Cylinder with Disc/Disc Prop Valve Kit.
Specs/Features:- 1-1/8" Bore with 9/16" and 1/2" ports Square Lid
- Disc/Disc Proportioning Valve with Side Mount Kit
- All parts are based off the factory originals and fit just like the factory originals
All 1970 GM A-body disc brake cars came from the factory with this master. The master is square with the bleeders. This is for cars that want to do the disc brakes correct like the factory. The hold off valve is 7/16-24 purple fitting. The earlier 68-69 valve has the wrong fitting size. These are all factory correct parts.
Applications:
- 1967 1968 1969 F-body Camaro / Firebird
- 1968-1974 X-Body Nova, Ventura, Apollo, Omega
- 1964-1967 A-Body Chevelle, El- Camino, GTO, Lemans, 442, Cutlass, Skylark, GS
- 1968-1972 A-Body Chevelle, Malibu, El Camino, GTO, Lemans, 442, Cutlass, Skylark, GS
- 1970-1972 Monte Carlo,
- 1969-72 Pontiac Grand Prix Tempest
- Square master cylinder usually seen on 70 and up cars
Professional Installation is Highly Recommended (No Instruction Included)