ATI Performance Products ATI917220 Super Damper Harmonic Balancer Small Block Chevy Internal Balance - 7.074

The ATI Performance Products ATI917220 Super Damper is a high-performance harmonic balancer designed specifically for Small Block Chevy engines. This internally balanced damper features a 7.074-inch outer diameter and is engineered exclusively for high-RPM performance applications operating at 6000+ RPM.

Key Features:

• Aluminum shell with steel hub construction for optimal strength-to-weight ratio
• 3-ring elastomer design with eight computer-machined grooves retaining proper durometer O-rings
• 1.200-inch width provides excellent crankshaft damping characteristics
• Black zinc chromate finish with laser-engraved 360-degree timing marks
• Exceeds SFI 18.1 certification standards for racing applications
• Proven in Winston Cup competition over two million cycles and ten years of drag racing
• Rebuildable design allows for O-ring replacement to restore like-new performance
• Weight: 6.25 lbs

ATI's patented Super Damper technology utilizes an unbonded elastomer design that functions as two dampers in one, providing superior harmonic control compared to conventional single-strip dampers. The steel inertia weight is precisely machined and retained by application-specific O-rings that have been dyno-tested to ensure optimal performance. This design eliminates the concentricity and timing issues common with pressed-rubber dampers while delivering measurable horsepower gains on high-performance engines.