GM Master Cylinder with Disc/Disc Proportioning Valve Disc Brake Kit 1 1/8" Bore

Upgrade your braking system with this Corvette-style master cylinder and PV4 proportioning valve kit , designed for GM universal applications . Featuring a 1-1/8" bore , cast iron construction , and 4-port design with 9/16" & 1/2" ports on both sides , this kit ensures proper brake balance for disc/disc setups .

Key Features:

• 1-1/8" bore for strong braking performance
• 4-port master cylinder with 9/16" & 1/2" ports on both sides
• Includes PV4 proportioning valve for proper disc/disc pressure distribution
• Plugs included for unused ports
• Piston adapter allows for manual or power brake applications
• Durable cast iron construction for longevity

Perfect for GM disc/disc brake conversions!