Master Cylinder 1in Bore 3/8in Ports Cast Iron

The Master Cylinder 1in Bore 3/8in Ports Cast Iron by ALLSTAR PERFORMANCE is a foundational hydraulic brake component designed for custom hot rods, street machines, and classic car restorations where traditional single-circuit braking systems are preferred. This cast iron unit is essential for converting pedal input into pressurized brake fluid that activates wheel cylinders and calipers throughout the vehicle.

The 1-inch bore diameter is engineered to deliver optimal pedal feel and pressure modulation for vehicles equipped with drum brakes, front disc conversions, or hybrid brake systems common in street rods and vintage truck builds. The 3/8-inch ports accommodate standard SAE brake lines, ensuring straightforward integration with existing or new hydraulic brake circuits without requiring specialized adapters or port reducers.

This master cylinder provides the mechanical simplicity and durability that experienced fabricators and enthusiasts demand. Its compact footprint of 5.4 x 5.3 x 9.7 inches allows flexible mounting in tight engine compartments typical of classic vehicles, making it an ideal choice for those looking to enhance their braking systems.