QA1 GS401-10550C Pro Coil Front Shock Kit GM Big Block Cars For Sale - New and Used

QA1 GS401-10550C Pro Coil Front Shock Kit GM Big Block Cars Brand QA1 Manufacturer Part Number GS401-10550C Product Description

Upgrade the front suspension of compatible GM big block cars with the QA1 Pro Coil Front Shock Kit, part number GS401-10550C. This kit includes a matched pair of front coil-over shocks designed for applications with an approximate front vehicle weight range of 2,101 to 2,300 pounds. It is intended for various GM big block car applications, so verify vehicle compatibility and suspension requirements before ordering.
The QA1 Pro Coil system combines a twin-tube shock design with a single adjustable damping setting, allowing suspension tuning to suit the vehicle and driving conditions. The included springs provide a 550 lb/in spring rate for controlled support and consistent suspension response. This configuration is designed for front suspension use and is supplied as a pair for balanced installation across both sides of the vehicle.
This QA1 coil-over shock kit is suitable for restoration, street performance, and custom suspension projects where application-specific fitment and adjustable damping are required. Confirm the vehicle make, model, year, front weight range, mounting configuration, and available suspension clearance before installation. Professional installation is recommended, and all suspension components should be inspected and adjusted according to the vehicle and kit requirements. The QA1 brand and GS401-10550C part number are included for accurate product QA1

Part Number: GS401-10550C

Product Type: Pro Coil front coil-over shock kit

Application: GM big block cars and various compatible applications

Quantity: Includes a pair of front shocks

Shock Design: Twin-tube construction

Adjustment: Single adjustable damping

Spring Rate: 550 lb/in

Vehicle Weight Range: Designed for approximately 2,101 to 2,300 lb front vehicle weight applications

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