Proflow master cylinders bring a classy look to your GM or street rod. They feature all new components with a wide variety of designs to provide compatibility with manual brakes as well as power-assisted applications. Dual reservoir configurations with several bore diameters accommodate front disc/rear drum brake setups or 4-wheel disc systems.

Whether your building a brake system from scratch, or updating a vintage system, Proflow has what you need in a variety of finishes and lid attachment styles.

Note: 3.25” Bolt Pattern - 4x 1/2”-20 and 9/16"-18 Threaded Ports.

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