ATI Performance Products 918870E Super Damper Harmonic Balancer Big Block Chevy Internal Balance - 7.074

The ATI Performance Products 918870E is a premium Super Damper harmonic balancer engineered specifically for Big Block Chevy engines. This high-performance damper features a 7.074-inch outer diameter and is designed to eliminate harmful torsional crankshaft vibrations that can damage your engine at high RPM.

Key Features:

• SFI 18.1 certified for racing and high-performance applications
• Aluminum and steel construction with internal steel inertia weight
• Black oxide finish for corrosion resistance
• Internal balance design for Big Block Chevy engines
• 3-ring design with eight computer-machined grooves retaining precision durometer O-rings
• Laser-engraved 360-degree timing marks for precise tuning
• Tunable and rebuildable for long-term performance
• Tested to exceed SFI 18.1 specifications

ATI's patented Super Damper technology has been proven in professional racing applications including NASCAR and drag racing. The unique elastomer O-ring system absorbs crankshaft harmonics more efficiently than traditional rubber dampers, protecting your engine components while adding horsepower and torque. Whether you're building a race engine or a high-performance street machine, the ATI 918870E delivers superior vibration control at all RPM ranges.