

Price: 713.95 USD
QA1 GS507-10550C Front Coil-Over System | Single Adjustable Shocks, 550# Springs
Application: 1971-1996 GM B-Body – Impala, Caprice, etc.
Part# Q-GS507-10550C
Easy Bolt-In Installation!
Remove the existing front shocks and springs and the QA1 Pro Coil System bolts right in.
Specially Designed Conical Springs
These springs are designed so that the lower end sits on the coil-over shock’s adjustable spring seat and the upper end sits in the original spring pocket 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.
Ride Height Adjustable – The threaded aluminum shock body allows for easy on-the-vehicle ride height adjustments.
The QA1 Pro Coil System Includes:
(2) QA1 Proma Star 18 way single adjustable coil-over shocks
(2) Conical springs
All required mounting hardware
Spring Rates:
This kit includes 550# springs. Look at the available spring rates and their applications below. If you would like a different spring rate then copy the kit part number and paste it into the search field in our eBay Store to order the kit with your desired spring rate. The spring rate chart below is a general guideline. The best spring rate will vary depending on your application, usage, and personal preference.
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Kit Part# | Spring Rate | Application | Front End Weight |
GS507-11250C | 250# | Lightweight Drag Race Vehicle | 1500#-1600# |
GS507-11300C | 300# | Lightweight Drag Race Vehicle | 1601#-1700# |
GS507-11350C | 350# | Lightweight Drag Race Vehicle | 1701#-1800# |
GS507-10400C | 400# | Most Small Block Vehicles | 1801#-1900# |
GS507-10450C | 450# | Most Small Block Vehicles | 1901#-2000# |
GS507-10500C | 500# | Most Small Block Vehicles | 2001#-2100# |
GS507-10550C | 550# | Most Big Block Vehicles | 2101#-2200# |
GS507-10600C | 600# | Most Big Block Vehicles | 2201#-2300# |
GS507-10650C | 650# | Most Big Block Vehicles | 2301#-2400# |
Related Products:
Spanner Wrenches & Torrington Thrust Washers/Roller Bearing Kit: This kit will provide you with the spanner wrenches you need to make ride height adjustments, along with the thrust washers and needle roller bearings to place on to the coil spring base to prevent spring bind and make for easy ride height adjustments. You can purchase this by searching for Part# 7888-110 in our eBay Store.
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See our eBay Store for more 1971-1996 GM B-Body products!
Item specifics
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Condition
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Brand
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QA1
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Manufacturer Part Number
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GS507-10550C
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Interchange Part Number
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QA1-GS507-10550C
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Other Part Number
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Q-GS507-10550C
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Placement on Vehicle
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Front
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Surface Finish
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Clear Anodized Aluminum
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Manufacturer Warranty
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1 Year
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Country/Region of Manufacture
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United States
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Shock Type
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Single Adjustable
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Shock Adjustments
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18
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Ride Height Adjustable
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Yes
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Spring Rate
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550#
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Spring Application
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2101#-2200# Front End Weight
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Fitment Type
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Performance/Custom
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UPC
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806990136824

