Wilwood High Volume Tandem Master Cylinder - 1 1/8 Inch Bore, Ball Burnished Finish

Wilwood’s Tandem Aluminum Master Cylinder is available in 2 bore sizes 1.00” and 1-1/8”; and 3 finishes, plain, ball burnished and black e-coat. 7/8” bore master cylinders are designed primarily for manual applications and include a pushrod. The 1” bore can be used in manual and power assisted applications and does not come with a pushrod. The 1-1/8” bore is designed for use primarily with power brake applications, either from vacuum assist or hydraulic assist systems. They’re designed for mount flanges from 3.22” to 3.40”, common measurements for most domestic cars and trucks from the mid 1960s to present, and offer fluid outlet ports on both sides of the bore. The stroke is set at 1.10” with a volume ratio of 2:1 between the primary and secondary chambers. Machined from high-pressure die castings, each master cylinder weighs only 3lbs, a 75% weight savings over most cast iron OE type master cylinders. We also offer a our combination proportioning valve kit, which includes brackets and stainless lines specifically for use with these master cylinders, see PN 260-13190, or 220-13189 for retrofit kit.

The Wilwood High Volume Tandem Master Cylinder, part number 260-8556-P, offers reliable braking performance for a variety of automotive applications. Available with a 1-1/8 inch bore size, this aluminum master cylinder is primarily designed for power brake systems, including vacuum or hydraulic assist setups. Its high-pressure die-cast aluminum construction ensures a lightweight design, weighing only 3 pounds, which represents a significant 75% weight reduction compared to traditional cast iron master cylinders. This reduction enhances vehicle handling and reduces unsprung weight, making it an excellent upgrade for performance and restoration projects. The master cylinder features fluid outlet ports on both sides of the bore, allowing flexible installation options. The stroke is set at 1.10 inches, with a 2:1 volume ratio between the primary and secondary chambers, ensuring consistent brake pedal feel and effective fluid displacement. It is compatible with mount flanges from 3.22 to 3.40 inches, a common measurement for most domestic cars and trucks from the mid-1960s to present. The 1-1/8 inch bore is especially suited for power brake applications, providing increased braking force and modulation. The ball burnished finish adds durability and corrosion resistance, ensuring longevity under demanding driving conditions. For enhanced system integration, Wilwood offers a combination proportioning valve kit, including brackets and stainless lines, specifically designed for use with this master cylinder, available under part numbers 260-13190 or 220-13189 for retrofit options. This master cylinder is ideal for enthusiasts seeking improved braking performance, reduced weight, and compatibility with a wide range of vehicles and brake systems.

Features:

• Bore size: 1-1/8 inch for power brake applications

• Material: High-pressure die cast aluminum for lightweight durability

• Finish: Ball burnished for corrosion resistance

• Weight: Only 3 lbs, offering a 75% weight savings over cast iron counterparts

• Fluid outlet ports on both sides for flexible installation

• Stroke: 1.10 inches with a 2:1 volume ratio between chambers

• Mount flange compatibility: 3.22 to 3.40 inches for most domestic vehicles

• Designed for use with vacuum or hydraulic assist brake systems

• Includes pushrod for manual applications (7/8 inch bore models)

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1