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Speedway IMCA Mod Brake Kit
Speedway IMCA Mod Brake Kit

Speedway IMCA Mod Brake Kit

Modified, Single Caliper Pistons, 2.38" Piston Diameter, 2.38" Bore Size

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Speedway IMCA Mod Brake Kit
Speedway IMCA Mod Brake Kit
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Part # 91673150
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What's In The Kit
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Important Messages:

  • This product is discontinued.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

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Caliper Pistons:
Piston Diameter:
Bore Size:
Centerline of Holes:
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Our affordable Speedway brake system comes with everything you'll need for your IMCA racer.

Kit includes:
  • GM Metric Clamp-on Calipers
  • 7/16"-20 RH & LH Metric Calipers
  • Wilwood BP10 Metric Brake Pads
  • GM Caliper Slide Bolt
  • 7/16" to AN4 Banjo Fitting
  • 7/16"-20" Banjo Bolt
  • 18" Brake Line w/ Straight
  • 26" Brake Line w/ 90° End
  • 3/8"-24 Female to AN4 Fitting
  • Lightweight Brake Line Kit


Includes front and rear calipers, pads, rear caliper brackets, banjo fittings, banjo bolts, stainless brake lines, nylon lines, and adapter fittings.
Some parts are not legal for use in California or other states with similar laws/regulations

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • 1978-UP GM Metric Clamp-On Caliper Bracket
    Qty x 2
  • Wilwood 150-8936K D154 PolyMatrix BP-10 Brake Pad Set, GM Metric
    Qty x 2
  • 7/16 Inch to AN4 Banjo Fitting
    Qty x 4
  • Steel 7/16 Inch x 20 Brake Banjo Bolt
    Qty x 4
  • 18 " Braided S.S. Brake Line - Straight AN4
    Qty x 2
  • Stainless 26 Inch Brake Line with 90 Degree AN 4 End
    Qty x 2
  • Straight 3/8 Inch-24 IFF to AN 4 Male Adapters
    Qty x 2
  • Speedway Lightweight Nylon Racing Brake Line Kit
    Qty x 1
  • IMCA Approved 1978-88 GM Metric LH Brake Caliper, 7/16-20 Inlet
    Qty x 2
  • IMCA Approved 1978-88 GM Metric RH Brake Caliper, 7/16-20 Inlet
    Qty x 2

More Like This


Q & A

Videos & Articles
  • We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
  • If you're changing your brake pads before you hit your first race, it's important to burnish or bed-in your new pads. Check out our quick tech-tip on bedding brakes and how to minimize pad wear and get the best performance out of your brakes.
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!
  • This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

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