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Product details
Red Superlite 6R calipers and GT rotors suit the specified CPP spindle. Confirm the listed 1955–1957 Chevrolet model and wheel clearance. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and builds disc brake systems for motorsport, street-performance and specialized uses, including calipers, rotors, master cylinders, valves, fittings and brake lines. Each part must match the requirements of the whole braking arrangement.
Technical Details
- Manufacturer: Wilwood
- Manufacturer part number: 140-15554-R
- Kit classification: Front Brake Kits - Street Performance
- Axle position: Front Kits
- Brake Type: Disc
- Selling unit: Sold as a kit.
- Minimum wheel diameter guidance; verify clearance drawing: 18 in; 457.2 mm
- Spindle Included: No
- Mounting Hardware Included: Yes
- Separate wheel hubs included: Yes
- Rotor Outside Diameter: 14.00 in; 355.6 mm
- Rotor Thickness: 1.10 in; 27.94 mm
- Rotor Material: Spec-37 Iron
- Surface Type: GT Slotted
- Rotor construction: Vented
- Bolt Circle Diameter: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
- Included wheel-stud thread: 1/2-20 thread
- Rotor surface finish: Black Electro Coat
- Rotor vane / construction reference: 72 CV
- Hat material: Aluminum
- Hat finish: Black E-Coat
- Hat offset (not axle-flange offset): 1.200 in
- Pistons per service caliper: 6
- Service-caliper piston material: Stainless
- Service-caliper mounting: Radial
- Caliper body construction: Forged aluminum
- Caliper Color: Red
- Caliper Finish: Red Powder Coat
- Caliper Inlet Port Diameter: 1/8-27 NPT
- Caliper family: Superlite 6R
- Pad compound: BP-10
- Master Cylinder Included: No
- Brake Booster Included: No
- Brake Lines Included: No
- Separately specified hydraulic components: 220-7699; 220-8307
Fitment & Compatibility
For the exact CPP two-inch drop spindle installation shown in DS-1318, using casting CP30102 on the listed Tri-Five Chevrolet applications. A 1957-only Del Ray row does not extend to other Del Ray years, and no stock-spindle fitment is implied. Six-piston Superlite 6R calipers work with 14.00 × 1.10-inch rotors, separate hats and aluminum hubs. Bearings, seals and 1/2-20 studs are included; the hubs offer 5 × 4.50/4.75-inch wheel patterns. Flexlines remain separate and need the correct ends, length and steering clearance. Verify the original car's modifications and the wheel drawing, with nominal 18-inch minimum wheel guidance.
Listed models: Bel Air; Nomad; One-Fifty Series; Sedan Delivery; Two-Ten Series; Del Ray. See the supplied table below for each year, submodel and equipment condition.
Wilwood product specifications · Installation instructions
PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.
Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1955-1957 | Chevrolet | Bel Air | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1955-1957 | Chevrolet | Nomad | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1955-1957 | Chevrolet | One-Fifty Series | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1955-1957 | Chevrolet | Sedan Delivery | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1955-1957 | Chevrolet | Two-Ten Series | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
| 1957 | Chevrolet | Del Ray | Vehicles using CPP 2" Drop Spindle CP30102 | Drop | Drum | Front Kit | 1, 2, 3, 4, 5 |
