QA1 GM Pro Front Coil-Over System - Single Adj. - 9in x 550lbs/in - Pigtail Large - Aluminum

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 550. 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.

• 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.
• Proudly made in the USA

The QA1 GM Pro Front Coil-Over System Part Number QAPGS507-09550D offers a high-performance suspension upgrade designed for classic Chevrolet Corvettes and full-size GM vehicles from model years 1974 to 1982. Crafted with precision, this single adjustable coil-over shock kit features a compressed length of approximately 9.63 inches and an extended length of 14.5 inches, providing versatile ride height adjustment for improved handling and stance. The kit includes a 9-inch spring rated at 550 pounds per inch, engineered for optimal load support and response.
Built with a fully threaded body, these shocks allow easy ride height tuning to match your driving style or aesthetic preferences. The lightweight, high travel springs are made in the USA and utilize fewer coils with a smaller wire diameter, increasing travel distance and reducing unsprung weight. This design results in faster reaction times and better suspension performance across a variety of applications, from street cruising to competitive racing.
Designed specifically for QA1's Pro Coil Systems, these shocks are available in multiple configurations, including independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag 'R' Series adjustable options. The aluminum billet construction ensures durability while keeping weight to a minimum. These shocks are easy to install with bolt-in compatibility with factory or upgraded control arms, making them suitable for both DIY enthusiasts and professional installers. QA1's shocks are 100% dyno tested, serialized for quality assurance, and are serviceable and rebuildable at authorized centers. Made in the USA, they are a reliable choice for street performance, autocross, drag racing, and street rod builds.
Features include the ability to fine-tune ride height, adjustable damping for balanced handling, and a limited lifetime warranty for peace of mind. Whether you're updating your Corvette or restoring a full-size GM vehicle, these coil-over shocks provide the performance and adjustability needed for a customized, responsive driving experience.

Features:

• Achieve the ultimate balance of ride quality and performance with simultaneous adjustment of rebound and compression valving.

• Easy bolt-in installation compatible with factory or upgraded QA1 control arms.

• Up to 2 inches of ride height adjustment to dial in the perfect stance.

• Limited lifetime warranty for peace of mind.

• Proudly made in the USA for quality and durability.

Fitment:
Chevrolet Corvette Base 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 1977
Chevrolet Corvette Base 1978
Chevrolet Corvette Base 1979
Chevrolet Corvette Base 1980
Chevrolet Corvette Base 1981
Chevrolet Corvette Base 1982
Chevrolet Corvette Collector's Edition 1982
Chevrolet Corvette Indianapolis 500 Pace Car 1978
Chevrolet Corvette Silver Anniversary Edition 1978
Chevrolet Corvette Stingray 1975
Chevrolet Corvette Stingray 1976