ATI Performance Products ATI917400E Super Damper Harmonic Balancer 7.074 Inch SFI 18.1

The ATI Performance Products ATI917400E is a high-performance Super Damper harmonic balancer engineered specifically for small block Chrysler/Mopar engines. This precision-built crankshaft damper features a 7.074-inch outside diameter and utilizes ATI's patented elastomer design to eliminate harmful torsional crankshaft vibrations that can damage high-performance engines.

Key Features:

• Aluminum shell construction with steel inertia hub for optimal strength-to-weight ratio
• 2-ring elastomer design with six computer-machined grooves retaining proper durometer O-rings
• Exceeds SFI 18.1 safety specifications for racing applications
• Laser-engraved 360-degree timing marks for precise engine tuning
• Black zinc chromate finish for corrosion resistance
• Internal balance configuration with single keyway and six crankshaft pulley bolt holes
• Tunable and rebuildable design ensures long-term performance
• Efficient vibration damping across all RPM ranges

The Super Damper features an aluminum outer shell weighing 5.0 lbs and a steel hub averaging 2.4 lbs, providing the perfect balance of lightweight construction and damping effectiveness. This harmonic balancer is designed exclusively for high-performance engines and serves as OEM equipment on various crate engines. Whether for racing or street performance applications, the ATI917400E delivers superior protection against destructive crankshaft harmonics. Mounting hardware sold separately.