QA1 27A953-5M 27A Series Monotube Stock Mount Shock 10.13 Compressed / 15.67 Extended Stud/T-Bar 3-5M IMCA Sealed

The QA1 27A953-5M is a 27A Series steel monotube stock mount shock absorber built for circle track racing applications. Featuring a Sealed Hyperscrew design, this shock is IMCA and Southern Sport Mod legal, making it a trusted choice for street stocks, hobby stocks, mini stocks, and other classes requiring a stock mount shock. It measures 10.13 inches compressed and 15.67 inches extended, with a stud top and T-bar bottom mounting configuration.

Key Features:

• Sealed Hyperscrew (27A Series) — gas pressure adjustable only by QA1 and QA1 Authorized Rebuilders, ensuring compliance with IMCA and sanctioning body rules
• Zinc-plated steel body for excellent corrosion resistance on dirt and asphalt tracks
• 46mm hard anodized piston for durability and consistent performance
• 3-5M linear valving — provides a stable, predictable damping curve for enhanced driver feedback
• Stud top / T-bar bottom mounting — stock mount design for direct fitment
• Compressed height: 10.13 in. | Extended height: 15.67 in.
• Racer revalveable and rebuildable — designed for unparalleled repeatability
• 100% dyno tested and serialized — quality verified before leaving the factory
• Made in the USA

The 27A Series builds on QA1's proven 26 Series platform by adding a stock mount option, bringing professional-level monotube shock performance to classes that require stock mount configurations. Linear valving delivers complete control at low shaft speeds without generating extreme forces at high shaft velocities, helping drivers feel the car more accurately and maintain consistent lap times.