ATI Performance Products ATI917210 Super Damper Harmonic Balancer SFI - 7.074 18.1

The ATI Performance Products ATI917210 Super Damper is a high-performance harmonic balancer engineered specifically for demanding racing and performance applications. This patented design represents the only crankshaft damper developed exclusively for high-RPM performance engines operating above 6,000 RPM.

Advanced Construction:

• Aluminum outer shell with steel hub construction for optimal strength-to-weight ratio
• Two-ring elastomer design with computer-machined grooves and proper durometer O-rings
• Steel inertia weight precisely balanced for maximum vibration damping
• 7.074-inch outside diameter with 1.200-inch width
• Black zinc chromate finish for corrosion resistance

Performance Features:

• Eliminates destructive torsional crankshaft vibrations across all RPM ranges
• SFI 18.1 certified for NHRA and IHRA competition use
• Laser-engraved 360-degree timing marks for precise tuning
• Internal balance design with single keyway
• Three crankshaft pulley bolt holes for secure mounting
• Tunable and rebuildable for long-term performance

Weighing just 3.40 lbs, this Super Damper delivers superior harmonic control while reducing rotating mass. Mounting hardware sold separately. Proven in Winston Cup competition and extensively tested for durability, this damper is the professional choice for serious racers and enthusiasts demanding maximum engine protection and performance.