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QA1 GS401-11250A

Pro Coil Front Coil-Over System Single Adjustable Shock



QA1 GS401-11250A
Representative Image
Product images may differ from actual product appearance.

Part Number: 122-GS401-11250A

Pro Coil Front Coil-Over System
  • Single Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1500-1600 lbs. Front End Weight
  • 250 lbs/in. Spring Rate
  • $467.99
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    QA1 GS401-11250A Pro Coil Front Coil-Over System Single Adjustable Shock $467.99

    QA1 GS401-11250A Details

    Spring Style ''A''

  • 1967-1969 Camaro / Firebird
  • 1968-1974 Nova / Chevy II
  • 1973-1974 Omega

    Features:
  • Simultaneous compression and rebound adjustment on one knob
  • 18 valving options
  • Perfect for comfortable street driving or the firm handling of a more modern sports car

    Shock Mount Type:
  • Stud Type Upper Mount
  • T-Bar Type Lower Mount

    *Notes: Some front applications may require the lower a-arm to be dropped for installation. Body diameter may be too large to allow mounting from the bottom. Some control arm's shock openings may need to be enlarged to accept a QA1 shock.

    Stud mounts are measured to the shoulder of the stud. Add 13/16'' for installed compressed length per stud mount. Loops and t-bars are measured to the center of the loop. Lengths may vary slightly.

  • Specifications:

    Manufacturer's Part Number:
    GS401-11250A

    Update Your GM Front End with a Stock Mount Coil-Over Conversion System from QA1!

    QA1 Single Adjustable Pro Coil Systems are great options for anyone looking for fully adjustable ride height and valving control while maintaining stock configuration control arms. Choose a spring rate that fits your driving style and adjust the valving to match, and you're on your way. This system is a great option for anyone looking for a suspension upgrade for their street car. With 18 valving options of simultaneous compression and rebound adjustment, the QA1 Single Adjustable Pro Coil System allows for that soft comfortable ride you want when cruising and the firm handling you'd expect from a more modern sports car.
    Made in the USA

    The Pro Coil System includes:
  • Two Proma Star single adjustable coil-over shocks
  • Two specially designed conical springs
  • All mounting hardware.

    Easy Bolt-In Installation - Minimal modifications to be made. Remove the existing shocks and springs and the QA1 Pro Coil System bolts right back in.

    Ride Height Adjustable - Threaded aluminum shock body allows ride height adjustment.

    Specially Designed Conical Springs - This spring is designed so that the lower end sets on the coil-over shock and the upper end sets in the original spring bucket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud.

    Features:
  • Easy, Bolt-In Installation - Stock Location Using Stock Mount
  • Lightweight Aluminum
  • Coil-Over Design
  • Ride Height Adjustable
  • 100% Dyno Tested and Serialized
  • Rebuildable and Revalveable Shocks





    GM Pro Coil Coil Over Conversion Kits are also available in Double Adjustable and Drag Race "R" Series





    Spring Style ''A''
    Pigtail End
    3.50'' Upper ID
    2.50'' Lower ID

    Spring Style ''B''
    Flat End
    3.50'' Upper ID
    2.50'' Lower ID

    Spring Style ''C''
    Flat End
    4.10'' Upper ID
    2.50'' Lower ID

  • Does QA1 GS401-11250A fit your vehicle?

    Narrow Results

    1974 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • EngineType: V8

    1970 CHEVROLET NOVA

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1973-1974 PONTIAC VENTURA

    • EngineType: L6
    • SubModel: CUSTOM

    1967-1969 CHEVROLET CAMARO

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8

    1971-1972 CHEVROLET NOVA

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8

    1968 CHEVROLET CHEVY II

    • EngineType: ALL
    • SubModel: ALL

    1967-1969 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SS

    1970 CHEVROLET NOVA

    • EngineType: L4
    • SubModel: BASE

    1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1973 OLDSMOBILE OMEGA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973-1974 BUICK APOLLO

    • EngineType: ALL
    • SubModel: ALL

    1972-1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1972-1974 PONTIAC VENTURA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1971 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 PONTIAC VENTURA

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1968 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1967-1969 CHEVROLET CAMARO

    • EngineType: L6
    • SubModel: BASE

    1969 CHEVROLET CAMARO

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1972-1973 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1967-1969 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: ALL

    1973-1974 CHEVROLET NOVA

    • EngineType: L6
    • SubModel: CUSTOM

    1973 OLDSMOBILE OMEGA

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8

    1967 CHEVROLET CAMARO

    • Liter: 4.9
    • EngineType: V8
    • SubModel: BASE

    1970-1973 CHEVROLET NOVA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1970-1974 CHEVROLET NOVA

    • EngineType: L6
    • SubModel: BASE

    1974 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1973-1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1973 OLDSMOBILE OMEGA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1974 OLDSMOBILE OMEGA

    • EngineType: ALL
    • SubModel: ALL

    1967-1969 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RS

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1967 CHEVROLET CAMARO

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET CAMARO

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8

    1973 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8

    1970-1971 CHEVROLET NOVA

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1973-1974 PONTIAC VENTURA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1973 OLDSMOBILE OMEGA

    • EngineType: L6
    • SubModel: BASE

    1972-1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8

    1974 PONTIAC VENTURA

    • Liter: 5.7
    • SubModel: GTO
    • CUI: 350
    • EngineType: V8

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET NOVA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1973-1974 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1973 OLDSMOBILE OMEGA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1973-1974 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • EngineType: V8

    1971 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1967-1969 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1972-1973 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: GTO
    • CUI: 350
    • EngineType: V8

    1969 CHEVROLET CAMARO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1971-1972 PONTIAC VENTURA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1972-1974 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1973 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: CUSTOM
    • EngineType: V8

    1970-1971 CHEVROLET NOVA

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1972-1974 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 PONTIAC VENTURA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1973-1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8

    1973 PONTIAC VENTURA

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1969 CHEVROLET NOVA

    • EngineType: ALL
    • SubModel: ALL

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1970 CHEVROLET NOVA

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1971-1974 PONTIAC VENTURA

    • EngineType: L6
    • SubModel: BASE

    1974 PONTIAC VENTURA

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8
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