Allstar Performance ALL41064 Master Cylinder 1.25" Bore 1/2/9/16 Ports Cast Iron

Master cylinder with large 1-1/4" bore works well on vehicles that require increased volume for proper braking or as an option when experiencing a large amount of pedal travel with standard 1" bore Corvette style master cylinders. Master cylinder features a deep hole piston for use with manual or power brakes and has 1/2" and 9/16" ports on the left side.