Product Summary

55-57 Chevy Bel Air, 1957 Chevy Del Ray

    Comes as a Kit

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    Key Specs

    MFG. Part #91031415
    BrandSpeedway Motors
    Brake System TypeDisc/Drum
    Brake Booster Diameter8 Inch
    Master Cylinder MaterialSteel
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    Need To Know

    Quick and Easy Returns

    Return Policy

    Speedway Motors 91031415 Details

    When you put modern disc brakes on the front of your 1955-57 Chevy car you should update the master cylinder as well. The stock 4-wheel drum master does not have the capacity to supply the proper amount of pressure for front disc brakes, so for best results, we recommend using this combo kit with any front disc brake conversion kit.

    • Bolt-on assembly works with stock pedal
    • Uses common 1" bore master cylinder
    • 8" dual diaphragm booster
    • Angled booster-to-firewall mounting bracket gives additional valve cover clearance

    Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.

    Speedway Motors 91031415 Specifications

    KEY SPECS
    MFG. Part #91031415
    BrandSpeedway Motors
    Brake System TypeDisc/Drum
    Brake Booster Diameter8 Inch
    Master Cylinder MaterialSteel
    GENERAL
    Brake Booster TypeVacuum Diaphragm Dual
    Outlet CountTandem/Both Sides
    Outlet Fitting3/8"-24
    Master Cylinder Bore Size1 Inch
    Brake Booster MaterialSteel
    Overall Length13.25"
    Master Cylinder Port Sizes3/8"-24 IFF
    Bolt Hole Pattern3.38" x 3.38"
    Centerline of Holes3.38"
    Reservoir IncludedYes
    Sold in QuantityKit
    NotesMounted length does not include the brackets.

    Questions & Answers

    4 Questions • 6 Answers

    The clevis yoke does not align with brake pedal hole. What is the proper location for new clevis pin hole? It seems to need to be lower than the stock location. GUS

    by GUS

    • 15 years ago

    1 answer

    what is the differance between #91035557 and this product?

    by

    • 15 years ago

    1 answer

    Does it clear tall valve covers on Big block chevy?

    by

    • 15 years ago

    2 answers

    I want to use the stock brake pedal. Can i do this with this master cylinder and booster?

    by gkif

    • 15 years ago

    2 answers

    4 of 4 questions shown

    Fitment

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