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JEGS Performance Products 631006

Chrome Master Cylinder GM Universal Mounting

JEGS Performance Products 631006

555-631006

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JEGS Performance Products 631006 Chrome Master Cylinder GM Universal Mounting $151.99
  • GM Universal Mounting
  • 1-1/8" Bore
  • (1) 9/16"-18 & (1) 1/2"-20 Port on Each Side
  • Flat Top Cover
    For:
  • Non-Power Assisted Disc/Drum Applications
  • Power Assisted Drum/Drum, Disc/Drum & Disc/Disc Applications

  • JEGS Performance Products 631006 Details

    Cast Aluminum Master Cylinders

    This dual reservoir master cylinder is machined from cast, aircraft quality, aluminum into a smooth and stylish unit. We then fully polish each one and finish it with high luster chrome to provide the finishing touch to any engine compartment. Features a billet top cover and GM universal mounting with one 9/16" & one 1/2" port on each side.

    Cast Aluminum Master Cylinders
    JEGS cast aluminum master cylinders feature either a high luster chrome or a durable black powdercoat finish, GM universal mounting.


    Power Brake Boosters
    JEGS power brake boosters feature either a durable black powdercoat or chrome finish. Available in combinations for every application. A pedal rod extension kit and a brake booster bracket are recommended (sold separately) when converting from manual to power brakes.
    Master Cylinder and Booster Conversion Kits
    JEGS 1-1/8" master cylinder and power brake booster conversion kits feature a high luster chrome or black powder coat finish. Available in combinations for every application.
    Brake Booster Brackets
    JEGS polished stainless steel or durable black powdercoat brake booster brackets are designed to convert the firewall stud mounting pattern from a manual master cylinder to the power brake booster pattern.

    Does JEGS Performance Products 631006 fit your vehicle?

    Narrow Results

    1975-1977 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: BASE

    1970 CHEVROLET CHEVELLE

    • CC: 6556
    • Liter: 6.6
    • SubModel: CONCOURS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: GREENBRIER
    • Engine Vin: ND
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: U
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1971 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: GREENBRIER
    • Engine Vin: CA
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1974 CHEVROLET MALIBU

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 CHEVROLET MONTE CARLO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET MONTE CARLO

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: CONCOURS
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1980 CHEVROLET CORVETTE

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970-1972 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967 CHEVROLET CHEVELLE

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1979 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: ESPRIT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1972 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: W
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: NOMAD
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1979 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: BASE

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1976 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: P
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1972 CHEVROLET EL CAMINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: CUSTOM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968 CHEVROLET BISCAYNE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: ME
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967-1969 CHEVROLET CAMARO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: FORMULA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 CHEVROLET CORVETTE

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 PONTIAC LEMANS

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET BEL AIR

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: ME
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET EL CAMINO

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 PONTIAC LEMANS

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1980 PONTIAC FIREBIRD

    • Liter: 4.9
    • Aspiration: T
    • SubModel: FORMULA
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1972 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET MONTE CARLO

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1975-1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 PONTIAC TEMPEST

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1968 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: 300
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1969 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: GREENBRIER
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: ND
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1965 PONTIAC GTO

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1976 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: ESPRIT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1964 PONTIAC GTO

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1971 CHEVROLET EL CAMINO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET EL CAMINO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET BEL AIR

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1967 CHEVROLET CAMARO

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1979-1980 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 PONTIAC LEMANS

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1975-1976 PONTIAC FIREBIRD

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1974 CHEVROLET MALIBU

    • CC: 7441
    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET CHEVELLE

    • CC: 3769
    • Liter: 3.8
    • SubModel: 300
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1968-1969 CHEVROLET CORVETTE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: NOMAD
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: B
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: MALIBU
    • Engine Vin: DC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1980 CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 8
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1965 CHEVROLET CORVETTE

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1968-1970 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: MALIBU
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1967 CHEVROLET IMPALA

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1975 CHEVROLET MALIBU

    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 PONTIAC LEMANS

    • Liter: 7.0
    • SubModel: SAFARI
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1970-1971 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: MALIBU
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1976 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 PONTIAC LEMANS

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: ESPRIT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: MALIBU
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: MALIBU
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1976 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: GREENBRIER
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1967 PONTIAC FIREBIRD

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1972 CHEVROLET CORVETTE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: CONCOURS
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968 PONTIAC TEMPEST

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 CHEVROLET MONTE CARLO

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: DC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 CHEVROLET CHEVELLE

    • CC: 6556
    • Liter: 6.6
    • SubModel: MALIBU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 CHEVROLET EL CAMINO

    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: U
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1965 PONTIAC LEMANS

    • CC: 3524
    • Liter: 3.5
    • Aspiration: N
    • SubModel: BASE
    • CUI: 215
    • EngineType: L6 ( 3.5 L / 215 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET CHEVELLE

    • CC: 3769
    • Liter: 3.8
    • SubModel: GREENBRIER
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1967 CHEVROLET BEL AIR

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1970 CHEVROLET MONTE CARLO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET MALIBU

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1971 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: ESPRIT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1966 CHEVROLET CORVETTE

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1968 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: BASE

    1968-1972 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: MALIBU
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: GREENBRIER
    • Engine Vin: DC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1973-1974 CHEVROLET MALIBU

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970 PONTIAC TEMPEST

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    631006 - JEGS Master Cylinders & Power Brake Boosters is rated 4.4 out of 5 by 3.
    • y_2016, m_12, d_7, h_13
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    • clientName_jegs
    Rated 5 out of 5 by from JEGS Master Cylinder This is a great looking master cylinder and is lighter than the stock cast iron units. I also like that it has the option to run the brake lines on the opposite side. I bought this unit after having not much success with rebuilt cast iron units that kept leaking. Also this one was on the lower cost side of other aluminum ones I researched. The two Allen screws to retain the top give it a nice clean look and are an improvement over the bail type retainers. I had a little trouble with getting the front brake line to stop leaking but I am using silicone brake fluid which may add to the difficulty. I used some high temp thread sealer on the outside threads to resolve.
    Date published: 2015-02-14
    Rated 4 out of 5 by from Booster I would like to have better finishing on the cap the chrome is a little wavy. The booster has line ports on both sides which makes it universal but the plugs are not finished which takes away from the appearance.
    Date published: 2015-11-10
    Rated 4 out of 5 by from Looks nice, works well Looks great in the car and I like that you have to take the top off to add brake fluid, keeps it rom scraping the chrome like the old flip style ones. Easy to install, great for different applications
    Date published: 2015-06-18
    • y_2016, m_12, d_7, h_13
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