Wilwood 12.88-Inch SRP Front Kit with Black Six-Piston Calipers, Chevrolet Nomad/Parkwood/Kingswood/Brookwood/Sedan Delivery/El Camino/Corvette/Bel Air/Impala/Biscayne (1959–1964)

Drilled/slotted 12.88-inch rings and black Superlite 6R calipers define this Wilwood front hub conversion. The SRP configuration supplies BP-10 pads, while separate hats and replacement hubs mount the 48-curved-vane rotors on the specified Chevrolet spindle. Model-year and original spindle details remain necessary, including the particular early Corvette applications in the table. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12460-D
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Black Powder Coat.
• Caliper bore sizes: 1.75, 1.25, 1.25 inches. Piston type: Stainless.
• Included pad compound: BP-10.
• Rotors: 12.88-inch diameter × 1.10-inch thickness; SRP Drilled & Slotted; Spec-37 Iron; Black Electro Coat surface; 48 curved vanes.
• Wheel mounting change from OE: +.21 inches per side.
• Replacement hubs: Hub - Hat Mount; Aluminum; Bare.
• Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
• Included: paired calipers, pads, rotors, mounting brackets and assembly hardware, replacement hubs, rotor hats.
• Hydraulic lines and fittings selected separately. No master cylinder, booster or spindles are supplied.
• Conditional wheel screening size: 17 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.

Fitment & Compatibility

Use DS903 to confirm bracket location, bearing seating and wheel clearance. The replacement hub adds 0.21 inches to wheel position per side and offers the stated alternative five-lug patterns. Check tire/fender room separately from the spoke and barrel clearance around the caliper. Hydraulic hoses are separate; verify steering-lock and suspension-travel routing, then assess the master cylinder with the rear brake configuration.

Match the individual model, year, submodel and brake configuration in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle details and installed brake hardware for help confirming the correct arrangement.

California Proposition 65 warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.