Wilwood Front Caliper and Rotor Kit, Polished FNSL6R - GM A/F/X-Body and Ridetech Pin Spindles (1960–1982 Applications), 14.00-inch Drilled/Slotted Rotors

Polished Superlite calipers contrast with the coated SRP rotors in this 14-inch front kit. The supplied dual-pattern hubs and bearings require the exact GM or Ridetech spindle listed for the application and may change tire-to-fender clearance. Wilwood Engineering designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977; its Camarillo, California operation serves motorsport, street-performance and specialized applications. Each part must be selected to work with the complete brake system and its requirements.

Polished calipers and SRP drilled-and-slotted rotors make this the show-car version of the 14-inch FNSL6R kit. A polished finish needs regular cleaning to keep its shine, and acidic wheel cleaners can dull it, so use a pH-neutral cleaner. If the car will also spend time on track, the polished calipers come with GT slotted rotors as 140-9804-P, which hold up better to repeated hard stops.

Technical Details

Rotors and mounting dimensions

• Rotors: 14.00 in; 355.6 mm diameter x 1.10 in; 27.94 mm thick; vented Spec-37 Iron
• Friction faces: SRP Drilled & Slotted
• Rotor finish: Black Electro Coat
• Internal vanes: 72 curved
• Hats: aluminum; Black E-Coat; 1.750-inch hat offset
• Supplied hub wheel-stud patterns: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
• Wheel studs: 1/2-20 thread; supplied with the hubs

Kit contents and separate parts

• Manufacturer part number: 140-9804-DP
• Supply: one kit with brake components for both sides of the front axle
• Mounting hardware: included
• Hubs: included with bearings and seals
• Spindles, master cylinder and brake booster: not included
• Hydraulic hoses: not included
• Includes hubs, wheel bearings and seals; 1/2-20 studs fit the selected 5 x 4.50 or 5 x 4.75-inch pattern.

Calipers and friction components

• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper
• Caliper finish: Polished
• Body construction: Forged aluminum
• Piston material: stainless
• Caliper mounting: radial
• Hydraulic inlet: 1/8-27 NPT
• Included pad compound: BP-10
• Listed piston bore sizes: 1.62 / 1.12 / 1.12 in

Fitment & Compatibility

Match the exact spindle entry in the table below before choosing this 14-inch hub kit. Original GM A/F/X-body disc/drum installations and the listed Ridetech pin-spindle conversions have different selection requirements; the Ford, Mercury and Corvette entries require their specified modified hardware. Some early GM spindles need machining as illustrated in DS-565. Compared with the OE mounting face, the supplied hubs add 0.38 inch per side on drum-brake applications and 0.09 inch on disc-brake applications. Verify tire/fender clearance and choose the proper separate hydraulic lines. Nominal minimum wheel diameter: 18 in; 457.2 mm. Compare the actual wheel barrel and spokes with the linked clearance drawing; diameter alone does not establish fit.

Installation documents

• Installation instructions

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.

With over 20 years of brake-system and restoration experience, PMB Performance can help you review the application, wheel clearance and remaining parts for the installation.

Vehicle Applications

Application Notes

1. 14" Rotor
2. Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.
3. This is a front service-brake kit. Select any rear parking-brake cable separately for the vehicle's actual rear brake system.
4. Line kit included (manufacturer): None
5. Front line-kit reference: 220-7056