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Product Summary

Front Position, 5 on 4.75" Bolt Pattern, Natural

  • Our 11" disc brake conversion kit makes it easy to convert your old drum brake setup to standard disc brakes on GM full size cars
  • This full size disc brake conversion kit won't require you to swap out spindles, saving you time and money
  • Comes with 11" cast iron forged rotors, loaded GM calipers, hoses, and all required hardware, seals, bearings
  • Also includes our GM full size 8" dual zinc power brake conversion kit for full braking power and detailed instructions for a painless install
  • Fits 1965-68 full Size Chevy B-body (Impala, Bel Air, Biscayne) with 15" or larger wheels and will increase track width by 1-3/8" (11/16" per side)

Comes as a Kit

Key Specs

PositionFront
Bolt Pattern5 on 4.75"
Rotor Diameter11 Inch
Rotor TypeVented
Caliper PistonsOne

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Speedway Motors 91664023 Details

Our all inclusive disc brake conversion kit makes it easy for the budget minded hot rod enthusiast to convert their drum brakes to disc brakes. The GM full size kits won't require you to swap out spindles, saving you time and money. Want power brakes? Add a power brake conversion and have full braking power. Booster conversion kits come in many finishes and sizes and can be configured to any kit.

Full Size Chevy 1965-1968 Complete Stock Height Disc Brake Kit Includes

  • 11" Rotors
  • Large Single Bore GM Calipers w/ Pads
  • Caliper Brackets
  • Hoses with Banjo Bolts
  • Bearings
  • Seals
  • Dust Caps
  • Spindle Nuts
  • Spindle Washers
  • All Hardware

1965-1968 GM Full Size 8" Dual Zinc Booster Conversion Kit (Impala, Bel Air, Biscayne)

Includes:

  • 1" Bore Dual Bail Cast Iron Master Cylinder
  • Brass Proportioning Valve Kit for Left Mount
  • 8" Dual Zinc Booster w/ Firewall Brackets
  • Pedal Extension & Clevis

Charts

Speedway Motors 91664023 Specifications

KEY SPECS
MFG. Part #91664023
BrandSpeedway Motors
PositionFront
Bolt Pattern5 on 4.75"
Rotor Diameter11 Inch
Rotor TypeVented
Caliper PistonsOne
Caliper FinishNatural
ColorNatural
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter15 Inch
Front Rotor IncludedYes
Front Rotor Diameter11 Inch
Front Caliper IncludedYes
Front Caliper Piston Quantity1
Front Caliper FinishNatural
Rear Caliper IncludedNo
Front Spindles IncludedNo
Master Cylinder IncludedYes
Brake Booster IncludedYes
Brake Hoses IncludedYes
Rear Rotor IncludedNo
GENERAL
Rotor Thickness1"
Front Caliper MaterialCast Iron
Front Caliper PistonSingle Large Piston
Application TypeDisc/Drum
Brake Booster Diameter8 Inch
Brake Booster FinishZinc
Brake Booster MaterialSteel
Brake Booster TypeVacuum Diaphragm Dual
Brake Hose MaterialRubber
Master Cylinder Bail TypeDual Bail
Master Cylinder FinishNatural
Master Cylinder MaterialCast Iron
Mounting Bracket IncludedYes
Brake Pedal Rod IncludedYes
Proportioning Valve LocationLeft Mount
Brake Booster Bracket FinishZinc