Bill Smith
Founder, 1929-2014
Speedy Bill
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Inboard Sprint Car Brake Kit w/ Drilled .810 Inch Iron Rotors

Centerline of Holes:
Material Type:
Cast Iron
Sold in Quantity:
Spline OD:
Spline Count:
Spline Length:
Hardware Included:
Rotor Diameter:
Caliper Pistons:
Rotor Thickness:
Caliper Finish:
Rotor Construction:
Rotor Hat Bolt Pattern:
8 x 7.00"
Garage Sale:
Rotor Location:
Rear Inboard
Rotor Shape:
Includes rotor, caliper, inboard clamp, pads, and bolts.
Inboard Sprint Car Brake Kit w/ Drilled .810 Inch Iron Rotors

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Q & A

What's in the Box

Get the hot new Wilwood NDL caliper, 2 brake bads, axle clamp with bolts and Speedways solid mount, drilled 12.19" x .810" iron rotor.

Components available separately.

Item Details

w/drilled .810 iron rotors

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Components also available separately.

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Components also available separately.

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The pistons incorporate a stainless steel shield and coated aluminum shell configuration to provide a highly efficient thermal barrier between the brake pads and the caliper body, seals, and fluid. Lower operating temperatures eliminate seal crystallization and localized fluid boiling while providing longer caliper service life through decreased distortion in the caliper body and piston bores.  
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Wilwood’s GP320 Sprint Left Front Brake kit offers increased braking torque and thermal performance of the GP320 4 piston calipers. A definitive increase in braking and durability over traditional aluminum or steel rotor systems. Mounts are included for standard Sprint spindle to match the included 10.50 x 0.19” Super Alloy rotor. Also includes Composition Metallic brake pads, lightweight aluminum dynamic mount 3-pin rotor adapter and T-nut hardware kit.

Instructions (PDF)

Inboard Brake Pad Shims for Ultra Lite/Red Devil Caliper
(Part #9105657)

These inboard brake pad shims will allow you to achieve accurate spacing between your caliper and the brake pad. They are made of steel and feature a special silenced coating to eliminate any noise problems.

  • Place plates between the caliper piston and the pad
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