ATI Performance Products ATI917781U Super Damper Harmonic Balancer Small Block Chevy - 6.325 Inch

The ATI Performance Products ATI917781U is a patented Super Damper harmonic balancer specifically engineered for high-performance Small Block Chevy engines. This undersized 6.325-inch outer diameter damper features steel construction with a black paint finish and is designed for internal balance applications.

Advanced Damping Technology:

Unlike conventional OEM dampers that use press-fit elastomer material, the ATI Super Damper employs a unique full-captured steel inertia weight with computer-machined grooves that retain dyno-tested 70 durometer O-rings. This patented design effectively eliminates harmful torsional crankshaft vibrations across the entire RPM range, preventing parasitic horsepower loss and potential engine damage.

Key Features:

• 6.325-inch outer diameter undersized design for clearance applications
• Steel inner and outer shells with steel inertia weight
• Internal balance configuration
• Exceeds SFI 18.1 safety certification for NHRA and IHRA competition
• Laser-engraved 360-degree timing marks for precise engine tuning
• Black zinc chromate finish for corrosion resistance
• Tunable and rebuildable design for long-term performance
• Each component balanced to within 1/10 ounce-inch before assembly
• Compatible with conventional three-bolt GM style pulleys

Performance Benefits:

The ATI Super Damper absorbs crankshaft harmonics more efficiently than OEM dampers throughout the entire RPM range. Testing by General Motors has confirmed the superior efficiency of ATI dampers in displacing crankshaft twist. The full-captured inertia ring design prevents the timing marks from shifting out of alignment, ensuring consistent ignition timing. This damper is suitable for both racing and street performance applications.

Application:

Designed for Small Block Chevy engines and compatible with Pontiac 2.5L 4-cylinder applications. The undersized 6.325-inch diameter makes this damper ideal for applications requiring additional clearance while maintaining superior harmonic dampening performance.