FNSL6R billet Forged six-piston calipers with 12.88”-14” rotors deliver the ultimate combination for braking power and style in this group of kits engineered for traditional non-ABS spindles on American muscle cars and vintage rods. Built exclusively for 17” and larger wheels, FNSL6 kits enhance tire and suspension upgrades on all types of custom show and high performance dual-purpose street and track machines. A full range of options for caliper finishes and rotor designs are guaranteed to catch the eye of the most discriminating enthusiast while providing optimized brake performance for every individual application.
Wilwood Engineering designs and manufactures high-performance disc brake systems. Since the company’s inception in 1977 by Bill Wood, we have developed a substantial matrix of brake components and engineering techniques that allow us to quickly and reliably create brake systems for almost any application. Our core ability is the rapid development of custom engineered brake systems using a combination of off-the-shelf and custom components. In addition to designing and manufacturing brakes for all types of competitive motor sports, Wilwood also manufactures brake systems and components for agricultural equipment, industrial applications, utility vehicles, snowmobiles, quads, motorcycles and military vehicles.
With headquarters in Camarillo, California, Wilwood employs approximately 250 people. We have on-shelf stock of more than 300 different brake calipers, 200 rotor designs, 100 master cylinder designs and a wide assortment of brackets, fittings, valves and brake lines. Our off-shelf brake calipers range in size from tiny calipers used on go-carts and light duty industrial equipment, to heavy duty original equipment brakes for the U.S. military Humvee.
Wilwood's engineering department uses the latest computer-aided design and manufacturing techniques in conjunction with finite element analysis, dynamic test and cycle test equipment, to find high-performance and reliability solutions for the most difficult braking tasks. Our extensive inventory of proprietary on-the-shelf components allow us to provide cost-effective solutions for unique brake applications.
Wilwood is ISO 9000 compliant and has extensive experience maintaining quality levels of 100ppm or less for original equipment manufacturers.
| Download Name | File Size |
| ds1317.pdf | 516.12KB |
| Make | Model | Years | Fitment Notes |
| Chevrolet | Bel Air | 1955 - 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Chevrolet | Del Ray | 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Chevrolet | Nomad | 1955 - 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Chevrolet | One-Fifty Series | 1955 - 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Chevrolet | Sedan Delivery | 1955 - 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Chevrolet | Two-Ten Series | 1955 - 1957 | KIT,FRONT,55-57 CHEVY,CPP 2in. DROP SPINDLE,FNSLR,12.88 ROTOR,DRILLED,RED; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 6R, 6-PISTON, RED POWDER COAT Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install. with Classic Performance Products 2" Drop Spindle |
| Details | |
| Part Type | Disc Brake Caliper / Rotor / Pad Kit |
| Kit Components & Specs / Rotors | |
| Bedded | No |
| Design Type | SRP-BLK |
| Dynamically Balanced | Yes |
| Left Hand - Part No | 160-13544-BK |
| Material | Spec-37 Iron |
| Outside Diameter (in) | 12.88 |
| Right Hand - Part No | 160-13543-BK |
| Style | SRP Drilled & Slotted |
| Surface Finish | Black Electro Coat |
| Type | SRP Drilled Rotor |
| Vane Count | 48 CV |
| Width (in) | 1.10 |
| Parts & Accessories / Caliper Parts | |
| Bleed Screw Kit | 220-0627 |
| Bridge Bolt Kit | 230-7710 |
| CrossOver O-Ring Kit | 130-10540 |
| O-ring Kit | 130-5972 |
| Replacement Piston 1 | 200-7520 |
| Replacement Piston 2 | 200-8439 |
| Replacement Piston 3 | 200-8439 |
| Wear Plate - Left Hand | 300-6596 |
| Wear Plate - Right Hand | 300-6595 |
| Kit Components & Specs / Hubs | |
| Bolt Circle 1 | 5 x 4.50 |
| Bolt Circle 2 | 5 x 4.75 |
| Finish Color | Bare |
| Hub - Part No | 270-10494 |
| Material | Aluminum |
| Mount Style | Hat |
| Stud Diameter - BC 1 | 1/2-20 |
| Stud Diameter - BC 2 | 1/2-20 |
| Type | Hub - Hat Mount |
| Kit Components & Specs / Rotor Hats | |
| Bolt Circle 1 | 5 X 4.50 |
| Bolt Circle 2 | 5 X 4.75 |
| Finish Color | Black E-Coat |
| Hat - Part No | 170-10231 |
| Hat Offset Dimension (in) | 1.200 |
| Material | Aluminum |
| Stud Diameter - BC 1 | 0.520 |
| Stud Diameter - BC 2 | 0.520 |
| Stud Diameter - BC 3 | 0.000 |
| Type | Big Brake Hat - Flared Bell |
| Parts & Accessories / Hub | |
| Bolt Kit | 230-7032 |
| Parts & Accessories / Hat | |
| Bolt Kit | 230-8008 |
| Kit Components & Specs / Calipers | |
| Brake Pad Area (In²) | 8.2 |
| Brake Pad Plate | 7416 |
| Brake Pad Volume (In³) | 3.8 |
| Finish Color | Red Powder Coat |
| Left Hand - Part No | 120-11781-RD |
| Mount Type | Radial |
| Pad Compound | BP-10 |
| Piston 1 Bore (in) | 1.62 |
| Piston 2 Bore (in) | 1.12 |
| Piston 3 Bore (in) | 1.12 |
| Piston Area (In²) | 4.04 |
| Piston Count | 6 |
| Piston Type | Stainless |
| Right Hand - Part No | 120-11780-RD |
| Type | Forged Narrow Superlite 6R |
| Caliper Type | 6 - Red Powder Coat |
| Min Wheel Diameter Req'd* | 17 |
| Mount Type | Radial |
| Rotor Diameter | 12.88 |
| Spindle Type | Drop Spindle |
| Parts & Accessories / *Brake Lines Needed | |
| Front Line Kit | 220-8307, 220-7699 |
