ATI Performance Products ATI918900 Super Damper Harmonic Balancer SFI - 18.1

The ATI Performance Products Super Damper ATI918900 is a high-performance harmonic balancer engineered specifically for small block Ford engines. This SFI 18.1 certified damper is designed to eliminate torsional crankshaft vibrations in high-RPM performance applications, providing superior engine protection and improved durability.

Key Features:

• 6.325-inch outside diameter steel construction with black zinc chromate finish
• 3-ring elastomer design with eight computer-machined grooves for optimal vibration dampening
• External balance configuration for 28 oz. imbalance applications
• Laser-engraved 360-degree timing marks for precision tuning
• SFI 18.1 certified and approved for racing competition
• Tunable and rebuildable design for long-term performance
• Steel outer shell, inner shell, crankshaft hub with steel inertia weight
• Four-bolt crankshaft pulley mounting with single keyway
• Width: 1.800 inches

The patented ATI Super Damper combines two dampening surfaces in one unit, utilizing elastomer construction between inner and outer shells to absorb harmful crankshaft vibrations. Testing has proven this design to be 30% more effective than original equipment dampers at 6000 RPM, helping to increase horsepower while stabilizing camshaft and ignition timing. This damper is sold individually and does not include mounting hardware.