ATI Performance Products ATI917261 Super Damper Harmonic Balancer Small Block Chevy SFI - 6.325 18.1

The ATI Performance Products ATI917261 is a high-performance Super Damper harmonic balancer designed specifically for Small Block Chevrolet engines. This precision-engineered damper effectively eliminates harmful torsional crankshaft vibrations that rob your engine of power and cause premature wear.

Key Features:

• 6.325-inch outer diameter with internal balance design
• Aluminum 2-ring shell construction with steel inertia weight
• 1.600-inch snout dimension for proper crank fitment
• SFI 18.1 certified for NHRA and IHRA competition
• Black zinc chromate finish for corrosion resistance
• Laser-engraved 360-degree timing marks for precision tuning
• Tunable and rebuildable design for long-term performance
• Efficient at all RPM ranges from idle to redline

ATI's patented Super Damper technology utilizes computer-machined O-ring grooves with proper durometer O-rings that are dyno-tested for each specific application. This advanced design allows the damper to effectively control crankshaft harmonics across the entire RPM range, resulting in measurable horsepower and torque gains while extending engine life. The lightweight aluminum construction reduces rotating mass without sacrificing damping efficiency, making this an ideal choice for both racing and high-performance street applications.