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Qa1

QA1 GM Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Pigtail Large - Aluminum

SKU: QAPGS507-09650D

Coilover Kits

QAP Coil-Overs - Pro Coil

Qa1

QA1 GM Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Pigtail Large - Aluminum

SKU: QAPGS507-09650D

Coilover Kits

QAP Coil-Overs - Pro Coil

A$1,851.97
LAST ONE! Est Ship 3-5 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.

Product Overview

These QA1 GM Pro Coil Systems are available for 1958-1970 Impalas and Full Size GM vehicles, including Full Size Chevy, Buick, Oldsmobile and Pontiac models, and are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs.


Features and Benefits

  • Up to 2 of ride height adjustment allows you to dial in the perfect stance.
  • Achieve the ultimate balance of ride quality and performance with simultanious adjustment of rebound and compression valving.
  • Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA

Product Details

Active or Passive Suspension:Passive
Adjustable Compression:Yes
Adjustable Rebound:Yes
Adjustable Ride Height:Yes
Assembled:No
Brand:QA1
Description:QA1 GM Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Pigtail Large - Aluminum
Grade Type:Performance
Internal Construction Type:Dual Tube
Manufacturer Part Number:GS507-09650D
Part Number:qapGS507-09650D
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Remote Reservoir:No
Spring Color:Silver
Spring Material:High Tensile Chrome Silicon
Title:QA1 Shock Absorber and Coil Spring Assembly GS507-09650D
UPC:806990139955

Part Type

Coilover Set

Data: v4.2 - Upd: 2026-10-04 14:51:47

Features

  • Achieve the ultimate balance of ride quality and performance with simultanious adjustment of rebound and compression valving.
  • Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA
  • Up to 2 of ride height adjustment allows you to dial in the perfect stance.

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
GS507-09650D
Product Attributes - Part Type
Coilover Kits
Product Attributes - Product Line
QA1 Pro Coilover Systems
Product Attributes - UPC
806990139955
Product Attributes - Coilover Kit Position
Front
Product Attributes - Adjustable Valving
Yes
Product Attributes - Number of Valving Selections
18
Product Attributes - Shocks Included
Yes
Product Attributes - Internal Design
Twin-tube
Product Attributes - Coilover Springs Included
Yes
Product Attributes - Spring Rate (lbs./in.)
650 lbs./in.
Product Attributes - Suspension Height Adjustment
0.0-2.0 in. lowered
Product Attributes - Recommended Front-End Weight
2,301-2,400 lbs.
Product Attributes - Gas Charged
No
Product Attributes - Extended Length (in.)
14.50
Product Attributes - Collapsed Length (in.)
9.63
Product Attributes - Threaded Adjustment Range
3.000 in.
Product Attributes - Upper Mount
Stud
Product Attributes - Lower Mount
Bar pin
Product Attributes - Shock Body Material
Aluminum
Product Attributes - Shock Body Finish
Silver
Product Attributes - Bushing Material
Polyurethane
Product Attributes - Bushing Color
Black
Product Attributes - Spring Finish
Gray/Silver
Product Attributes - Crossmember Included
No
Product Attributes - Adjustable Mounting Bracket Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - Welding Required
No
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Notes
Designed to fit applications with big block engines. Coilover shocks are single adjustable Pro series GS507 shocks. Springs are 9 in. tapered with a large diameter, pigtail upper end style 9HTSP650 springs.

Reference Information

Brand Name/s Qa1
StreetFX SKU qapGS507-09650D
SFX Item ID 4093682
Supplier Item Code 4093682
Manufacturer SKU GS507-09650D
Manufacturer UPC 806990139955
Alternative References qa1, QA1-GS507-09650D, 9in, 650lbs/in

Brochures

Compatibility

Application Data
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1963
    Ending Year1968
    Engine TypeV8
    CC5358
    CID327
    Liter5.3
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV8
    CC6489
    CID396
    Liter6.5
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    CC6998
    CID427
    Liter7.0
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1969
    Ending Year1971
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    CC7441
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeV
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    CC7441
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1974
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeJ
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1974
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeK
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1972
    Ending Year1979
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeL
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeT
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeY
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeZ
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    CC7441
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeZ
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    CC7439
    CID454
    Liter7.4
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    DrivetrainRWD
    Engine VIN CodeX
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1977
    Ending Year1977
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeX
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    CC5733
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code4
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1979
    Ending Year1982
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code8
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1980
    Ending Year1980
    Engine TypeV8
    CID305
    Liter5.0
    Engine Size5.0L/305
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN CodeH
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1980
    Ending Year1981
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code6
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelCOLLECTOR'S EDITION
    Beginning Year1982
    Ending Year1982
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code8
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelINDIANAPOLIS 500 PACE CAR
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code4
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelSILVER ANNIVERSARY EDITION
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    CID350
    Liter5.7
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    DrivetrainRWD
    Engine VIN Code4

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