QA1 GS508-10550C GM Pro Coil System, Single Adj, Tapered Flat Lrg

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QA1 now has GM Pro Coil Systems available for your 1963-1965 Buick Riviera
They offer fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way

$665.95

Factory Shipped

This part will be shipped by the manufacturer. We estimate this item will ship on or before October 6th.

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Product Summary

63-65 Buick Riviera, Front Position, 5.00 Shock Stroke

QA1 now has GM Pro Coil Systems available for your 1963-1965 Buick Riviera
They offer fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way
They 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

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Key Specs

Position	Front
Spring Rate	550 lbs.
Shock Adjustability	Single Adjustable
Shock Type	Twin Tube
Shock Body Material	Aluminum

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QA1 GS508-10550C Details

QA1 now has GM Pro Coil Systems available for your 1963-1965 Buick Riviera
They offer fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way
They 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
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

Guides & Documents

Coilovers Instruction Sheet (721GS50810550C)

CA Prop 65

QA1 GS508-10550C Specifications

KEY SPECS
MFG. Part #	GS508-10550C
Brand	QA1
Position	Front
Spring Rate	550 lbs.
Shock Adjustability	Single Adjustable
Shock Type	Twin Tube
Shock Body Material	Aluminum
Shock Stroke	5.00
Upper Shock Mount	Stud
Lower Shock Mount	T-Bar
Height Adjustable	Yes
Finish	Powder Coated

GENERAL
Compressed Length Range	9.00" to 9.99"
Compressed Length	9.63"
Extended Length Range	14.00" to 14.99"
Extended Length	14.5"
Number of Valving Selections	18
Coilover Springs Included	Yes
Bushing Material	Polyurethane
Body Diameter	2.00"
Sold in Quantity	Pair
Adjustable	Yes
Hardware Included	Yes
Crossmember Included	No
Welding Required	No
Gas Charged	No
Color	Silver
Suspension Height Adjustment	0.0-2.0 Inch Lowered
Spring Finish	Powder Coated
Recommended Front End Weight	2,101-2,200 lbs.
Notes	Designed to fit applications with big block engines. Coilover shocks are single adjustable Pro series GS508 shocks. Springs are 10 tapered with a large diameter, flat upper end style 10HTBF550 springs.
GTIN Code	806990146892
Adjustable Valving	Yes
Adjustable Mounting Bracket Included	No
Bushing Color	Black
Lower Mount	T-bar
Upper Mount	Stud