ATI Performance Products ATI917065 Super Damper Harmonic Balancer Big Block Chevy Internal Balance - 7.074

The ATI Performance Products ATI917065 Super Damper is a high-performance harmonic balancer engineered specifically for Big Block Chevy engines running at 6000+ RPM. This patented crankshaft damper features a steel outer shell construction with a 7.074-inch outside diameter, designed to eliminate torsional crankshaft vibrations in demanding performance applications.

Key Features:

• 7.074-inch diameter steel shell with black zinc chromate finish
• 3-ring design with computer-machined grooves for proper durometer O-rings
• Internal balance configuration for Big Block Chevy 396, 402, and 427 engines
• Exceeds SFI 18.1 certification requirements for competition use
• Laser-engraved 360-degree timing marks for precise engine tuning
• Steel inertia weight core for maximum durability
• Single keyway with three crankshaft pulley bolt holes
• Tunable and rebuildable design

The ATI Super Damper utilizes elastomer construction with precision-engineered O-rings that have been dyno-tested for optimal performance across all RPM ranges. Whether you're building a race engine or a high-performance street machine, this damper delivers superior crankshaft protection and is efficient at eliminating harmful vibrations. Sold individually, mounting hardware not included.