QA1 qapGS507-09450D GM Pro Front Coil-Over System - Single Adjustable - 9-Inch Spring, 450 lb/in

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 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, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs. Front Pro Coil single adjustable stock mount shock kit. Compressed length of 9.63" and extended length of 14.5". Includes 9" spring with rating of 450.

• 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.
• Up to 2 of ride height adjustment allows you to dial in the perfect stance.
• Limited Lifetime Warranty for peace of mind.

The QA1 GM Pro Front Coil-Over System is a single-adjustable front stock-mount shock kit designed for select GM applications. It provides adjustable ride height and simultaneous compression and rebound valving adjustment, allowing suspension settings to be tailored to driving preferences and vehicle handling needs.

The system uses lightweight billet aluminum coil-over shocks with high-travel springs. Its fully threaded shock body allows ride-height adjustment for stance and weight-balance tuning, while the high-travel spring design helps increase suspension travel and reduce unsprung weight. The kit is designed for easy bolt-in installation with factory or upgraded QA1 tubular control arms.

The shock has a compressed length of 9.63 inches and an extended length of 14.5 inches. The kit includes a 9-inch spring rated at 450 lb/in. QA1 Pro Coil Systems are dyno tested, serialized, serviceable and rebuildable by QA1 authorized service centers, and are sold in pairs. Listed fitment includes 1974, 1976, 1977, 1978, 1979, 1980, 1981 and 1982 Chevrolet Corvette applications.

Key Features & Performance Benefits

• Single-adjustable valving: Simultaneously adjusts compression and rebound valving.
• Adjustable ride height: Provides up to 2 inches of ride-height adjustment for stance and handling tuning.
• High-travel spring design: Helps increase suspension travel and reduce unsprung weight.
• Bolt-in installation: Designed for installation with factory or upgraded QA1 tubular control arms.

Key Product Specifications & Technical Data

• Brand: QA1
• Part number: qapGS507-09450D
• Application: GM front stock-mount coil-over system
• Adjustment type: Single adjustable
• Spring size: 9 inches
• Spring rate: 450 lb/in
• Compressed length: 9.63 inches
• Extended length: 14.5 inches

What's Included

Front Pro Coil single-adjustable stock-mount shock kit with 9-inch, 450 lb/in spring. Sold in pairs.

Fitments:
1963 Chevrolet Corvette Base
1964 Chevrolet Corvette Base
1965 Chevrolet Corvette Base
1966 Chevrolet Corvette Base
1967 Chevrolet Corvette Base
1968 Chevrolet Corvette Base
1969 Chevrolet Corvette Base
1970 Chevrolet Corvette Base
1971 Chevrolet Corvette Base
1972 Chevrolet Corvette Base
1973 Chevrolet Corvette Base
1974 Chevrolet Corvette Base
1975 Chevrolet Corvette Stingray
1976 Chevrolet Corvette Stingray
1977 Chevrolet Corvette Base
1978 Chevrolet Corvette Base
1978 Chevrolet Corvette Indianapolis 500 Pace Car
1978 Chevrolet Corvette Silver Anniversary Edition
1979 Chevrolet Corvette Base
1980 Chevrolet Corvette Base
1981 Chevrolet Corvette Base
1982 Chevrolet Corvette Base
1982 Chevrolet Corvette Collector's Edition

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1