QA1 27A883-6M 27 Series Monotube Steel Shock Stud/Poly Mount 3C/6R Linear Sealed IMCA

The QA1 27A883-6M is a 27 Series stock mount monotube shock absorber built for circle track racing applications. Featuring a zinc-plated steel body and a 46mm hard-anodized piston, this shock delivers the proven performance of QA1's trusted 26 Series design with the added benefit of a stock mounting configuration — making it an ideal choice for street stocks, hobby stocks, mini stocks, and other classes requiring stock mount shocks.

This shock uses a Sealed Hyperscrew (27A Series) configuration, making it legal for IMCA and similar sanctioning body rule packages that prohibit external adjustment. The sealed design ensures gas pressure can only be adjusted by QA1 or authorized rebuilders, maintaining compliance with IMCA and track rules.

Key Features:

• Monotube steel body with zinc-plated finish for corrosion resistance
• 46mm hard-anodized piston for maximum car control at all shaft velocities
• Linear valving (3C/6R) for a stable, predictable handling balance
• Stud top / Polyurethane bushing bottom mount configuration
• Collapsed length: 12.8 in. / Extended length: 21.38 in.
• Sealed Hyperscrew (IMCA Legal) — compliant with IMCA Southern Sport Mod and similar rule packages
• Racer rebuildable and revalveable for unparalleled repeatability
• 100% dyno tested and serialized
• Made in the USA

Linear valving provides a more stable car and allows the driver to better feel and react to changing track conditions. This shock is well-suited for both dirt and asphalt circle track applications where stock mount shocks are required.