ATI Performance Products ATI917681 Super Damper Harmonic Balancer Aluminum - 6.325

The ATI Performance Products ATI917681 Super Damper is a high-performance harmonic balancer engineered specifically for custom internal balanced Chevrolet engine builds. This premium crankshaft damper utilizes ATI's patented elastomer technology to effectively eliminate torsional crankshaft vibrations across the entire RPM range.

Key Features:

• 6.325-inch outside diameter aluminum construction with 3-ring design
• Exceeds SFI 18.1 safety certification for competition use
• Laser-engraved 360-degree timing marks for precision tuning
• Black zinc chromate finish for corrosion resistance
• Elastomer construction with computer-machined grooves and proper durometer O-rings
• Three crankshaft pulley bolt holes with single keyway configuration
• Tunable and rebuildable design for long-term serviceability

This damper features a 3-ring aluminum shell weighing 3.90 lbs and an aluminum hub weighing approximately 0.85 lbs, providing optimal performance for high-performance street and racing applications. The ATI Super Damper is trusted as OEM equipment on various crate engines and delivers extremely efficient vibration damping at all engine speeds. Note that mounting hardware is not included and this unit is designed exclusively for Chevrolet front applications with internal balance.