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QA1 GS401-10350C - QA1 GM Pro Coil Single Adjustable Coil-Over Conversion Systems



QA1 GS401-10350C - QA1 GM Pro Coil Single Adjustable Coil-Over Conversion Systems
Representative Image
Product images may differ from actual product appearance.

Part Number: 122-GS401-10350C

Pro Coil Front Coil-Over System
  • Single Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1700-1801 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $467.99

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    QA1 GS401-10350C - QA1 GM Pro Coil Single Adjustable Coil-Over Conversion Systems Details

    Spring Style ''C''

  • 1973-1983 Chevelle / Malibu
  • 1975-1979 Nova / Omega / Skylark
  • 1973-87 El Camino / Regal / Cutlass Supreme / Grand Prix
  • 1973-1988 Monte Carlo
  • 1984-1987 Grand National
  • 1974-1977 GTO / Ventura
  • 1973-77 LeMans
  • 1982-2004 S10 Pickup

    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:

    Bushing Material
    Rubber
    Hardware Included
    Yes
    Gas Charged
    No
    Adjustable Mounting Bracket Included
    No
    Adjustable Valving
    Yes
    Bushing Color
    Black
    Coil-Over Kit Position
    Front
    Coil-Over Springs Included
    Yes
    Crossmember Included
    No
    Number of Valving Selections
    18
    Quantity
    Sold as a kit
    Recommended Front-End Weight (lbs.)
    1,701-1,900
    Shock Body Finish
    Clear anodized
    Shock Body Material
    Aluminum
    Shocks Included
    Yes
    Spring Rate
    350 lbs./in.
    Welding Required
    No
    Upper Mount
    Stud
    Lower Mount
    Bar pin
    Manufacturer's Part Number:
    GS401-10350C

    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 this fit your vehicle?

    Narrow Results

    1985-1988 CHEVROLET MONTE CARLO

    • Liter: 5.0
    • SubModel: SS
    • CUI: 305
    • EngineType: V8

    1982-1990 GMC S15 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1977 OLDSMOBILE CUTLASS

    • Liter: 6.6
    • SubModel: COLONNADE
    • CUI: 403
    • EngineType: V8

    1983 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: CL

    1973 CHEVROLET CHEVELLE

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

    1980 OLDSMOBILE CUTLASS

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

    1977 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: SPORT

    1975 BUICK APOLLO

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

    1976-1977 OLDSMOBILE OMEGA

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

    1973-1974 CHEVROLET MALIBU

    • CC: 7439
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 454
    • EngineType: V8

    1974 CHEVROLET EL CAMINO

    • EngineType: V8
    • SubModel: CUSTOM

    1973 CHEVROLET LAGUNA

    • EngineType: ALL
    • SubModel: ESTATE

    1981 PONTIAC GRAND PRIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 231
    • EngineType: V6

    1975 BUICK APOLLO

    • Liter: 4.3
    • SubModel: SR
    • CUI: 260
    • EngineType: V8

    1979-1987 CHEVROLET EL CAMINO

    • EngineType: ALL
    • SubModel: ALL

    1973-1974 PONTIAC LEMANS

    • Liter: 7.5
    • EngineType: V8
    • SubModel: SAFARI

    1982 CHEVROLET MALIBU

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

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8

    1973-1974 CHEVROLET MALIBU

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

    1976 CHEVROLET NOVA

    • Liter: 4.1
    • SubModel: CONCOURS
    • CUI: 250
    • EngineType: L6

    1976-1977 OLDSMOBILE OMEGA

    • Liter: 5.7
    • SubModel: F85
    • CUI: 350
    • EngineType: V8

    2004 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: LS

    1974 BUICK CENTURY

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 455
    • EngineType: V8

    1986-1988 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: LS

    1975 BUICK APOLLO

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

    1979 CHEVROLET MALIBU

    • EngineType: V6
    • SubModel: SPORT

    1976-1977 PONTIAC GRAND PRIX

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

    1977 PONTIAC VENTURA

    • Liter: 3.8
    • SubModel: SJ
    • CUI: 231
    • EngineType: V6

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LS

    1977 PONTIAC LEMANS

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1977 OLDSMOBILE OMEGA

    • Liter: 5.0
    • SubModel: F85
    • CUI: 305
    • EngineType: V8

    1975-1976 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1973-1974 OLDSMOBILE CUTLASS SUPREME

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 403
    • EngineType: V8

    1982 CHEVROLET MALIBU

    • Liter: 4.3
    • SubModel: CLASSIC
    • CUI: 260
    • EngineType: V6

    1982 CHEVROLET MALIBU

    • Liter: 4.4
    • EngineType: V8
    • SubModel: CLASSIC

    1977 PONTIAC VENTURA

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1976 BUICK SKYLARK

    • Liter: 4.3
    • SubModel: S
    • CUI: 260
    • EngineType: V8

    1981 PONTIAC LEMANS

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

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1973 PONTIAC LEMANS

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

    1981 CHEVROLET MALIBU

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1975-1976 OLDSMOBILE OMEGA

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

    1975 BUICK APOLLO

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1973 CHEVROLET LAGUNA

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1976-1977 PONTIAC LEMANS

    • EngineType: ALL
    • SubModel: SPORT COUPE

    1976-1977 PONTIAC LEMANS

    • EngineType: L6
    • SubModel: BASE

    1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 403
    • EngineType: V8

    1975 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: SALON
    • CUI: 260
    • EngineType: V8

    1975 BUICK APOLLO

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8

    1973-1974 CHEVROLET MALIBU

    • Liter: 7.4
    • SubModel: ESTATE
    • CUI: 454
    • EngineType: V8

    1973-1974 PONTIAC GRAND AM

    • Liter: 7.5
    • EngineType: V8
    • SubModel: BASE

    1980-1982 CHEVROLET MALIBU

    • Liter: 3.8
    • SubModel: CLASSIC
    • CUI: 229
    • EngineType: V6

    1974 PONTIAC LEMANS

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • EngineType: V8

    1977 PONTIAC LEMANS

    • Liter: 5.0
    • SubModel: SPORT
    • CUI: 305
    • EngineType: V8

    1973 CHEVROLET MONTE CARLO

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

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 400
    • EngineType: V8

    1976-1977 PONTIAC LEMANS

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

    1976 PONTIAC LEMANS

    • Liter: 4.3
    • SubModel: SPORT
    • CUI: 260
    • EngineType: V8

    1979 CHEVROLET MALIBU

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLASSIC

    1976 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: S
    • CUI: 231
    • EngineType: V6

    1975 OLDSMOBILE OMEGA

    • Liter: 4.1
    • SubModel: SALON
    • CUI: 250
    • EngineType: L6

    1973 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: DELUXE
    • EngineType: V8

    1973 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1973-1974 CHEVROLET MONTE CARLO

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

    1977 OLDSMOBILE CUTLASS

    • Liter: 3.8
    • SubModel: S
    • CUI: 231
    • EngineType: V6

    1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 403
    • EngineType: V8

    1977 PONTIAC VENTURA

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8

    1975-1976 OLDSMOBILE CUTLASS

    • Liter: 4.1
    • SubModel: S
    • CUI: 250
    • EngineType: L6

    1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1973-1974 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 400
    • EngineType: V8

    1977 CHEVROLET EL CAMINO

    • EngineType: ALL
    • SubModel: CLASSIC

    1973 CHEVROLET EL CAMINO

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

    1976 CHEVROLET NOVA

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

    1974 BUICK CENTURY

    • Liter: 7.5
    • SubModel: LUXUS
    • CUI: 455
    • EngineType: V8

    1973-1974 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: S

    1981 PONTIAC GRAND PRIX

    • Liter: 4.4
    • EngineType: V8
    • SubModel: BROUGHAM

    1973 BUICK CENTURY

    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8

    1978-1979 PONTIAC LEMANS

    • Liter: 5.0
    • SubModel: SAFARI
    • CUI: 305
    • EngineType: V8

    1973-1974 PONTIAC GRAND PRIX

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET EL CAMINO

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

    1973 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • Aspiration: N
    • SubModel: DELUXE
    • Engine Vin: Y
    • CUI: 454
    • EngineType: V8

    1975-1977 OLDSMOBILE CUTLASS SUPREME

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

    1977 PONTIAC VENTURA

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1999-2004 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: LT

    1975 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: HURST

    1978 PONTIAC LEMANS

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1974 BUICK CENTURY

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8

    1973-1974 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: LANDAU

    2004 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: Z71

    1980 CHEVROLET MALIBU

    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 229
    • EngineType: V6

    1980 OLDSMOBILE CUTLASS

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8

    1975 PONTIAC VENTURA

    • EngineType: ALL
    • SubModel: ALL

    1981-1984 CHEVROLET MONTE CARLO

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

    1979 PONTIAC GRAND PRIX

    • Liter: 3.8
    • SubModel: SJ
    • CUI: 231
    • EngineType: V6

    1981 PONTIAC GRAND PRIX

    • Liter: 4.4
    • EngineType: V8
    • SubModel: BASE

    1981 PONTIAC LEMANS

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1982-1987 PONTIAC GRAND PRIX

    • EngineType: ALL
    • SubModel: ALL

    1979-1980 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: CLASSIC SPORT

    1976 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • EngineType: V8
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