ATI Performance Products ATI918622 Super Damper Harmonic Balancer - 8.25 10-Groove LS3 LS7

The ATI Performance Products ATI918622 is a Super Damper Supercharged Series harmonic balancer designed for high-performance GM LS3 and LS7 engines. This precision-engineered damper features an 8.25-inch diameter with a 10% overdrive pulley configuration, making it ideal for Corvette, Camaro Z28, and other performance applications.

Key Features:

• 8.25-inch outside diameter aluminum and steel construction
• 10-groove serpentine belt configuration with integrated 4-groove air conditioning pulley
• Elastomer dampening system for superior torsional vibration control
• SFI 18.1 certified for racing applications
• Laser-engraved 360-degree timing marks for precise ignition setup
• Black zinc chromate finish for corrosion resistance
• Internal engine balance design with single keyway
• Aluminum outer shell with steel hub construction
• Non-removable air conditioning pulley integrated into design

This Super Damper harmonic balancer eliminates destructive torsional crankshaft vibrations that can damage high-performance engines. The advanced elastomer construction provides superior dampening compared to traditional rubber-style dampers, while the 10% overdrive configuration helps optimize accessory drive speeds for forced induction applications. Exceeds SFI 18.1 specifications and is approved for NHRA and IHRA competition use.