Description
The Wilwood Part Number 260-8556 is a high-performance tandem aluminum master cylinder designed to enhance braking efficiency in a variety of vehicles. Available in a 1 1/8 inch bore size, this master cylinder is primarily suited for power brake applications that utilize vacuum or hydraulic assist systems. Its durable construction from high-pressure die cast aluminum results in a lightweight unit weighing approximately 3 pounds, representing a 75% weight reduction compared to traditional cast iron master cylinders. This reduction in weight can contribute to improved vehicle handling and overall performance. The cylinder features fluid outlet ports on both sides of the bore for flexible installation options and a stroke of 1.10 inches, with a fluid volume ratio of 2:1 between the primary and secondary chambers, ensuring consistent hydraulic pressure during braking. The design incorporates a mount flange compatible with the common 3.22 to 3.40-inch measurements used on most domestic cars and trucks from the mid-1960s to the present, facilitating straightforward compatibility and installation.
This master cylinder is engineered with different bore sizes to suit various applications. The 7/8 inch bore version is ideal for manual braking systems and includes a pushrod for easy setup. The 1 inch bore model can be used in both manual and power-assisted systems but does not include a pushrod. For power brake applications, especially those utilizing vacuum or hydraulic assist, the 1 1/8 inch bore is recommended to deliver optimal braking force and responsiveness. Wilwood also offers a complementary combination proportioning valve kit, including brackets and stainless lines, designed to work seamlessly with this master cylinder, providing an integrated solution for enhanced brake system performance and reliability. Whether upgrading an existing system or building a custom brake setup, this master cylinder offers a reliable, lightweight, and high-quality component suitable for a wide range of automotive applications.
Features:
- Bore sizes available: 7/8 inch, 1 inch, and 1 1/8 inch for versatile applications
- Constructed from high-pressure die cast aluminum for durability and weight savings
- Weight approximately 3 pounds, offering a 75% reduction compared to cast iron counterparts
- Fluid outlet ports on both sides of the bore for flexible installation options
- Mount flange compatible with common domestic vehicle measurements from mid-1960s to present
- Stroke set at 1.10 inches with a 2:1 fluid volume ratio between chambers
- Designed for power brake systems using vacuum or hydraulic assist
- Includes a pushrod for manual applications in the 7/8 inch bore model
- Available in plain, ball burnished, and black e-coat finishes for corrosion resistance and aesthetics
- Compatible with Wilwood’s proportioning valve kits for complete brake system integration
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