ATI Performance Products 917061 Super Damper Harmonic Balancer Big Block Chevy - 396 402 427

The ATI Performance Products 917061 Super Damper is a high-performance harmonic balancer designed specifically for Big Block Chevrolet 396, 402, and 427 engines. This patented crankshaft damper is engineered exclusively for high-performance applications, delivering superior vibration control and durability compared to factory balancers.

Advanced Elastomer Design:

The ATI Super Damper features a steel inner and outer shell construction containing a precision-machined steel inertia weight. The inertia weight includes computer-machined grooves that retain specially selected O-rings that have been dyno-tested for optimal performance across the entire RPM range. This elastomer-based design effectively eliminates harmful torsional crankshaft vibrations that can damage your engine.

Key Features:

• 6.325-inch outside diameter with internal balance design
• SFI 18.1 certified for competition use
• Black anodized finish for corrosion resistance
• Laser-engraved 360-degree timing marks for precise tuning
• Tunable and rebuildable design for long-term value
• Steel construction for maximum durability
• Single keyway design for simple installation
• Extremely efficient at all RPM ranges

Performance Benefits:

Whether you're building a high-revving race engine or a powerful street machine, the ATI Super Damper provides the critical protection your crankshaft needs. This damper is OEM equipment on various crate engines and is trusted by professional engine builders worldwide. The tunable design allows for rebuilding and customization as your engine's needs change over time.

Application Note:

Designed for Big Block Chevrolet 396, 402, and 427 cubic inch engines. Mounting hardware sold separately.