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Product details
This chrome powder-coated Compact Tandem master uses the fifteen-sixteenths-inch bore and C2-specific pushrod. Its integral reservoir feeds two circuits, with the supplied line adapters providing connection choices at the master's side ports. Since its founding by Bill Wood in 1977, Wilwood Engineering has designed and manufactured disc brake systems. Its Camarillo, California operation supplies master cylinders, brake lines, valves, rotors, fittings and calipers for specialized applications as well as motorsport and street-performance vehicles. Replacement and conversion parts need to match the complete braking arrangement.
Technical Details
- Manufacturer part number: 260-16521-P
- Material: Aluminum
- Cylinder bore: 15/16"
- Pressure circuits: 2
- Stroke Length: 1.10 in
- Reservoir Type: Integral tandem chambers, 7.8 and 4.7 oz
- Fluid capacity: 7.8 / 4.7 oz
- Flange-to-end length: 6.55"
- Mounting centers: 3.22–3.40"
- Finish: Chrome powder coat
- Native pressure ports: 1/2-20 at both circuits; use the correct included outlet adapters and seal washers
- Circuit outlet adapters: Primary: 3/8-24 or 1/2-20 inverted flare; secondary: 3/8-24 or 9/16-18 inverted flare
- Hydraulic relationship: Equal pressure output from the two circuits before external proportioning; 2:1 primary/secondary volume relationship
- Service: Factory rebuild only; do not disassemble the tandem piston assembly
- C2 linkage dimensions: Exact page lists 2.73-inch rod and 9.28-inch overall; DS-1287 shows 2.90 inches from flange to rod tip. Confirm the actual assembly and pedal engagement.
- Valve clearance: Optional bracket kit 260-14248 does not fit the C2 installation space; mount the valve separately
Fitment & Compatibility
Verify the 1963–1967 Chevrolet Corvette C2 pedal and installed brakes, distinguishing early drum-to-tandem conversions from 1965–1967 non-power disc applications. Preserve the full 1.10-inch stroke and check any Wilwood brake kit's hydraulic requirements. The optional 260-14248 valve bracket cannot be used in the C2 installation.
Manufacturer Documents
- Wilwood product specifications
- Wilwood DS1287 instructions and specifications
- Wilwood FL162 instructions and specifications
- Wilwood FL467 instructions and specifications
PMB Performance offers over 20 years of parts and brake-fitment experience. For a compatibility check, provide the existing assembly and the dimensions that govern the replacement.