Wilwood Front Red Superlite 14-Inch Drilled/Slotted Kit for Later GM 11-Inch Spindles (1979–1990)

Red six-piston Superlite calipers are combined with 14-inch drilled/slotted rotors in this Wilwood later-GM conversion. Aluminum replacement hubs and separate hats mount to the specified original disc spindle. The wheel mounting face moves +0.17 inches from its OE reference, requiring a separate tire-position check. 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: 140-10493-DR
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
• Calipers: Forged Narrow Superlite 6R; 6 pistons; Red Powder Coat.
• Bores: 1.62, 1.12, 1.12 inches. Pads: BP-10.
• Rotors: 14.00-inch diameter × 1.10-inch width; SRP Drilled & Slotted, Spec-37 Iron, Black Electro Coat. 72 curved vanes.
• Wheel mounting change from OE: +.17 inches per side.
• Hubs: Hub - Hat Mount; Aluminum; Bare.
• Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
• Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs, rotor hats.
• Not included: hydraulic lines, master cylinder, booster or spindles. Reuse suitable matching components.
• Conditional wheel minimum: 18 inches. Check the clearance drawing for barrel and spoke offset.

Fitment & Compatibility

The Oldsmobile Custom Cruiser, Delta 88 and Omega rows illustrate why the listed production span is an envelope rather than one shared fitment interval. Use each exact row and identify the later GM factory spindle for an 11-inch rotor. Its preparation and bracket alignment are covered by DS613. This conversion changes wheel mounting by +0.17 inches and adds the larger 14-inch brake envelope. Check those two effects separately, using the actual wheel drawing, before connecting the hydraulic lines and testing pedal travel.

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

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

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.