Wilwood Calipers

Wilwood Engineering offers an extensive line of high performance disc brake calipers for a wide range of applications including Late Model Stock Cars, Modifieds, Dragsters, Off-Road, Street Rods, Sprints, Road Racers and Motorcycles.

Determining the suitability of a caliper for a specific need is crucial to the overall performance of the brake system. This overview will help in the selection process by familiarizing you with general design characteristics of these fine calipers. The linked pages give more specific details unique to a particular model.

Racing disc brake calipers are essentially sophisticated hydraulic clamps, designed to house a specific brake pad in a package that is lightweight, rigid and resists heat over prolonged high temperature brake use. Wilwood addresses these issues in every caliper model through material selection and design. All Wilwood caliper housings are constructed of specific aluminum alloys, either cast or billet, to achieve maximum rigidity with minimum weight. Heat transfer from the brake pad to the fluid, housing, and seal is minimized by manufacturing pistons from stainless steel, a material known for its resistance to thermal conductivity. The piston’s heat path is further reduced by utilizing a thin wall deep cup design; the less heat transferred through the piston, the cooler the caliper operates. High temperature caliper seals are designed to control piston retraction resulting in a firmer, more responsive pedal.

Other innovative features designed into the calipers are pad retainers to facilitate ease of pad change, reinforced pad wear surfaces, bridge bolts to enhance caliper stiffness, differential piston bore configurations to eliminate pad taper, and insulated stainless steel heat shields to retard heat absorption into the caliper body. Stiffening ribs are incorporated into some models to increase rigidity. Most calipers are tapped with 1/8-27 NPT fluid inlets, and all external fluid crossover tubes are protected by a high temperature RTV dampening material.

Wilwood Engineering manufactures all calipers with a protective black finish to resist corrosion and accelerate heat dissipation. Some calipers are available polished for the Street Rod and Pro Series markets, and have been styled to highlight the brilliance of a polished part.

With these features in mind, refer to the following pages for caliper applications, specifications and ordering information.

	Overview of Disc Brake Calipers (.pdf)		Complete List of Wilwood Calipers (.pdf)
	STR Caliper (.pdf)		P6R Radial Mount Caliper (.pdf)
	Integra 6R Radial Mount Caliper (.pdf)		GT III / ST Caliper (.pdf)
	GN III and GN III / ST Calipers (.pdf)		Billet SL6R Calipers (.pdf)
	Billet SL6R Radial Mount Calipers for 14" Discs (.pdf)		Billet Superlite 4R / ST Caliper (.pdf)
	Billet SL4R Radial Mount Caliper for 14" Discs (.pdf)		Billet Superlite SL6 Lug Mount Calipers (.pdf)
	Billet Superlite 4 and 4 / ST Lug Mount Calipers (.pdf)		Forged Billet Superlite Caliper
	IR-GT4R Radial Mount Caliper (.pdf)		Billet DynaPro Caliper (.pdf)
	Narrow Mount Dynalite Caliper (.pdf)		Billet NDL Caliper (.pdf)
	Billet NDL Radial Mount Caliper (.pdf)		Forged Billet Dynalite Caliper (.pdf)
	Billet Dynalite Caliper (.pdf)		Billet Dynalite Single Caliper (.pdf)
	Dynalite Single Floater (.pdf)		Billet Spot Caliper (.pdf)
	GM III Caliper (.pdf)		GM Metric Caliper (.pdf)
	Kart /Jr. Dragster Caliper (.pdf)		PS-1 Caliper (.pdf)
	GP 300 and 310 Motorcycle Calipers (.pdf)		Thermlock Pistons (.pdf)
	Caliper Technical Tips		Brake Pads for Wilwood Calipers (.pdf)

Revolution Brake 130 'A' St. Ashland, OR 97520 Phone: 541-488-5638 Fax: 541-482-2126 Toll Free Number 888-688-5638 8-5pm PST Monday-Friday

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