ATI Performance Products ATI916577 Super Damper Harmonic Balancer

The ATI Performance Products ATI916577 Super Damper is a high-performance crankshaft harmonic balancer engineered for serious street and racing applications. ATI Super Dampers are the industry-standard choice for engine builders seeking superior crankshaft vibration control, improved power output, and long-term engine protection over stock rubber-style balancers.

Unlike OEM harmonic balancers that use a bonded rubber ring prone to slipping and deterioration, the ATI Super Damper utilizes a viscous silicone fluid damping mechanism housed in a precision-machined steel casing. This design provides consistent, reliable damping across a wide RPM range and under extreme heat and load conditions common in performance and race engines.

Key Features:

• Precision-machined steel construction for superior durability and balance
• Viscous silicone fluid damping — no rubber ring to slip, crack, or degrade
• SFI 18.1 specification certified for sanctioned racing applications
• Accurate timing marks machined directly into the shell
• Maintains crankshaft integrity and reduces harmonic vibration at high RPM
• Designed for direct bolt-on installation to OEM crank snout specifications
• Compatible with standard ATI or OEM accessory drive belt configurations

ATI Super Dampers are trusted by professional engine builders, NASCAR teams, drag racers, and performance enthusiasts worldwide. The ATI916577 is designed to be a direct, high-performance replacement that improves on the factory balancer in every measurable way — making it an essential component for any serious engine build.