ATI Performance Products 918644 LS3 Super Damper 7.48" 6-Groove SFI 18.1 Harmonic Balancer

The ATI Performance Products 918644 Super Damper is a precision-engineered harmonic balancer designed specifically for LS3 engines. This 7.48-inch diameter damper features a 6-groove serpentine belt design and carries SFI 18.1 certification for competition use.

Key Features:

• 7.48-inch outer diameter for LS3 applications
• 6-groove serpentine pulley configuration
• SFI 18.1 certified for racing and high-performance use
• Multi-ring elastomer design absorbs harmful crankshaft vibrations
• CNC-machined aluminum construction with steel inertia ring
• Laser-engraved timing marks for accurate engine timing
• Rebuildable design for long-term performance

ATI Super Dampers utilize a unique elastomer and free-floating inertia ring design that effectively dampens destructive crankshaft vibrations across the entire RPM range. This protection helps prevent crankshaft fatigue and failure in high-horsepower and high-RPM applications. The damper's bonded rubber design requires no maintenance and provides superior vibration control compared to OEM-style harmonic balancers.