$668.74
Manufactured - Ships in 7 to 10 days
1973 Pontiac Grand Prix
Fits Following Model(s):
  • with 279.5mm (11") OE Rotor Spindles
    Fits Models with 14" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
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    Product Details

    Wilwood Brakes

    Pontiac Grand Prix with 279.5mm (11") OE Rotor Spindles 1973-1974, Drag Race Drilled Rotor Forged Dynalite Caliper Front Brake Kit by Wilwood®. This Brake kit will fit the Flex line kit # 220-10509. If you are a dedicated racer, this brake kit is what you need to get exceptional braking performance on the track. The kit use drilled rotors and yields high brake torque. They are engineered to the absolute minimum in rotating and unsprung weight, where all that is required is a single stop at the end of a drag run.

    Fitment notes: Fits Models with 14" wheels. Check wheel clearance diagram in kit installation instructions before purchase.

    Specifications:

    Rotor Bolt Circle: 5x4.5"/4.75"
    Caliper Finish: Black Anodize
    Caliper Construction: Fixed
    Caliper Type: 4-Piston
    Caliper Body Material: Aluminum
    Caliper Mount Type: Lug
    Caliper Total Piston Area: 4.8 sq in
    Caliper Type: Forged Dynalite (FDL)
    Minimum Wheel Diameter Required: 381mm (15")
    Driving Style: Performance / Racing, Track Only
    Hub Bolt Circle 1: 5 x 4.5"
    Hub Bolt Circle 2: 5 x 4.75"
    Hub Mount Style: Direct / Adapter
    Hub Stud Diameter: 1/2-20
    Rotor Thickness: 9mm (0.35")
    Outside Diameter: 273mm (10.75")
    Spindle Type: Factory Disc Spindle
    OE Hub Offset: + 0.13
    Pad Area: 6.36 in²
    Pad Compound: BP-10
    Pad Plate: 7112
    Piston Material: Stainless
    Rotor Construction: 2-Piece
    Rotor Material: Steel
    Rotor Style: Drilled
    Rotor Type: Solid
    Rotor Construction: With Hub
    Rotor Finish: Black Oxide

    Features:

    • Includes calipers, drilled steel rotors and brake pads
    • Drilled rotors improve cooling capacity
    • Steel rotors provide less weight and extra durability
    • High-performance calipers provide excellent strength durability
    • Designed for drag race vehicles
    • Kits include all new hardware, wheel bearings, seals and extra length lug studs
    • Not for street use
    • Proudly manufactured in the United States

    Benefits:

    • Drilled Holes create an escape route for debris, dust, gases, and water
    • Drilled rotors improve the appearance of your wheels and provide reduced rotor weight
    • Steel rotors offer great weight savings
    • Multi-piston calipers provide clamping force on both sides of the rotor at the same time and uniformly transfer braking force to the brake pads
    • Caliper pistons are hollow to save weight
    • Aluminum caliper body allows for exceptional light weight (up to 40% of weight savings) and ensures superior corrosion resistance
    • Caliper heat-resistant coating prevent cracking and fading
    • Fixed calipers create friction from the brake pads on both sides of the rotor at minimum time interval

    Wilwood has put great efforts into developing a superior line of drag race brake components. Wilwood Drag Race brake kits have become a favorite choice for drag racers thanks to their extreme durability and outstanding stopping power. The Drag Race Drilled Brake Kit is engineered to match special requirements of drag racing. The package you get includes drilled rotors, reliable brake pads and calipers representing the latest racing technology.

    Made from steel, drilled rotors are suitable for all types of motorsport, where every weight advantage is necessary. Those lightweight rotors will positively effect braking performance by reducing rotating mass and unsprung weight. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.

    Floating calipers by Wilwood aren't solidly mounted so they can slide left and right via pins and bushings on the bracket. When the brakes are applied, the piston pushes the entire caliper, creating friction from the brake pads on both sides of the rotor. The floating calipers are suitable for most vehicles since they are lighter, cheaper, and more compact than a fixed caliper. Multi-piston calipers allow for more even braking and, as a result, less pad distortion. The more number of pistons a caliper has, the more clamping force it provides. Thanks to the evenly distributed pressure, these calipers ensure an even wear pattern along the entire length of the brake pad. Usually these calipers have smaller diameter pistons than single-piston calipers. These rotors by Wilwood offer improved pad bite and higher friction level compared to other rotors. The cross-drilled pattern of these rotors allows for air ventilation while reducing pad surface temperature. Depending on size and drill pattern of the rotors, their weight can be reduced by about 0.2 pounds per rotor.

    Wilwood® Engineering designs and manufactures high-performance disc brake systems. Since founding in 1977, Wilwood has developed a substantial matrix of brake components and engineering techniques that allow us to quickly and reliably create brake systems for almost any application. Their 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.

    Warranty Information

    Do not drive on untested brakes. Brakes must be tested after installation or maintenance.

    • Make sure pedal is firm: Hold firm pressure on pedal for several minutes, it should remain in position without sinking. If pedal sinks toward floor, check system for fluid leaks. DO NOT drive vehicle if pedal does not stay firm or can be pushed to the floor with normal pressure.
    • At very low speed (2-5 mph) apply brakes hard several times while turning steering from full left to full right, repeat several times. Remove the wheels and check that components are not touching, rubbing, or leaking.
    • Carefully examine all brake components, brake lines, and fittings for leaks and interference.
    • Make sure there is no interference with wheels or suspension components.
    • Drive vehicle at low speed (15-20 mph) making moderate and hard stops. Brakes should feel normal and positive. Again check for leaks and interference.
    • Always test vehicle in a safe place where there is no danger to (or from) other people or vehicles.
    • Always wear seat belts and make use of all safety equipment.

    General Warnings:

    RACING EQUIPMENT AND BRAKES MUST BE MAINTAINED AND SHOULD BE CHECKED REGULARLY FOR FATIGUE, DAMAGE, AND WEAR. DO NOT OPERATE ANY VEHICLE ON UNTESTED BRAKES! ALWAYS UTILIZE SAFETY RESTRAINT SYSTEMS AND ALL OTHER AVAILABLE SAFETY EQUIPMENT WHILE OPERATING THE VEHICLE.

    Disclaimer of Warranty:

    Purchasers recognize and understand that racing parts and equipment, such as disc brakes, hubs, etc. and all parts, inventory and services manufactured and/or sold by Wilwood Engineering, Inc. are exposed to many and varied conditions due to the manner in which they are installed and used. Purchasers and Wilwood Engineering, Inc. consciously desire to make their own bargain, irrespective of any court decision and purchasers agree upon good faith and in consideration for being allowed to purchase from Wilwood Engineering, Inc. said parts or services. Purchasers expressly acknowledge and understand that Wilwood Engineering, Inc. does not make any affirmation of fact or promise to purchaser, which relates to said parts, inventory, or services that becomes part of the basis of the bargain between Wilwood Engineering, Inc. and purchasers. Nor does Wilwood Engineering, Inc. make, or cause to be made to purchaser any description of the goods sold to purchaser, nor does Wilwood Engineering, Inc. make, or cause to be made, as part of the basis of the bargain with purchasers, any description or affirmation of fact concerning any sample or model of racing parts, and equipment inventory or service.

    As further consideration for purchasers using Wilwood Engineering, Inc. racing parts and equipment any and all inventory and services, purchasers acknowledge that due to the differing conditions and circumstances under which all equipment and parts are installed and used, purchasers are not relying on Wilwood Engineering, Inc. skill or judgment to select or furnish the proper part or equipment. Purchasers expressly affirm they are relying upon their own skill or judgment to select and purchase suitable goods.

    Wilwood Engineering, Inc. makes no warranties whatsoever, expressed or implied, oral or written, to purchasers. There is no warranty of merchantability made to purchasers. Wilwood Engineering, Inc. further excludes any implied warranty of fitness with respect to racing and equipment, any and all inventory and service.

    It is expressly understood and agreed between purchasers and Wilwood Engineering, Inc. that as part of the bargain between Wilwood Engineering, Inc. and purchasers, and in consideration of doing business with each other, all purchasers take, select and purchase said racing parts, equipment, any and all inventory, or services from Wilwood Engineering, Inc. "as is" and "with all faults" and Wilwood Engineering, Inc. shall always provide purchasers with a full and complete opportunity to examine, at purchasers’ leisure and convenience, any racing parts and equipment, any and all inventory, or services when purchasing or contemplating purchasing from Wilwood Engineering, Inc.

    If, and in the event that purchasers expressly or impliedly cause representations, or statements or affirmations of fact contrary to this disclaimer of all warranties, expressed or implied, then purchasers agree to indemnify and hold harmless Wilwood Engineering, Inc. in the event of any claim, demand, or legal action against Wilwood Engineering, Inc. by any purchaser.

    Purchasers understand and agree that no officer, director, employee, or salesman of Wilwood Engineering, Inc. has any authority to make any statement contrary to the terms of this agreement. On the contrary, Wilwood Engineering, Inc. disavows any statement contrary to what is herein above written.

    Magnuson-Moss Warranty Act:
    Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More
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