QA1 6395-500 63 Series Large Body Aluminum Coil-Over Shock Absorber 9in Stroke 5C/500R

The QA1 6395-500 is a 63 Series sealed large body aluminum twin tube coil-over shock absorber built for high-performance circle track racing on both dirt and asphalt surfaces. With a 9-inch stroke, a compressed height of 15.38 inches, and an extended height of 24.30 inches, this shock is engineered to deliver consistent, repeatable performance lap after lap.

The 63 Series is the sealed, non-rebuildable counterpart to QA1's rebuildable 62 Series, making it an excellent cost-controlled spec shock option for sanctioning bodies and racing series looking to level the playing field. The eyelet-top / eyelet-bottom mounting configuration ensures easy installation and broad compatibility across late model and modified race car applications.

Key Features:

• Twin tube design delivers excellent feel and grip across all track conditions, excelling when traction is at a premium
• 5 compression / 500 rebound valving with a linear/digressive deflective disc piston for precise, tunable damping characteristics
• Lightweight 2-inch O.D. aluminum body reduces unsprung weight without sacrificing durability
• Sealed, non-rebuildable construction — ideal as a spec shock for sanctioning bodies focused on cost control
• Adjustable ride height via threaded body for coil-over setup customization
• 100% individually dyno tested and serialized for verified, consistent quality out of the box
• Can be installed in any orientation without affecting performance
• Made in the USA

The QA1 6395-500 is a trusted choice for late model and modified racers competing on dirt or asphalt tracks. Whether used as a spec shock within a controlled rules package or as a performance upgrade, the 63 Series delivers the reliability and handling balance that QA1 is known for.