ATI Performance Products ATI917260 Super Damper Harmonic Balancer SFI - 6.325 18.1

The ATI Performance Products ATI917260 Super Damper is a high-performance harmonic balancer designed exclusively for racing and high-RPM street engines. This patented damper effectively eliminates torsional crankshaft vibrations that rob horsepower and reduce engine durability, making it ideal for small block Chevy and Pontiac 4-cylinder applications with internal balance.

Key Features:

• 6.325-inch outside diameter with aluminum shell and steel hub construction
• 2-ring elastomer design with steel inertia weight for superior damping performance
• SFI 18.1 certified for NHRA and IHRA competition use
• Laser-engraved 360-degree timing marks for precise engine tuning
• Black zinc chromate finish resists corrosion
• 1.200-inch width, three crankshaft pulley bolt holes, single keyway
• Weighs only 3.30 lbs while providing 30% more inertia weight than stock dampers
• Tunable and rebuildable for long-term performance

The ATI Super Damper uses computer-machined grooves to retain proper durometer O-rings that have been dyno-tested for optimal performance. Digital vibration testing at 6,000 RPM proves this damper is 30% more effective than original equipment dampers at controlling harmful torsional vibrations. By stabilizing the crankshaft, this damper also improves camshaft and ignition timing accuracy while increasing horsepower and engine longevity. Mounting hardware sold separately.