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SKU: ATI917780
ATI Super Damper Harmonic Balancer for Chevy SB, 90° V6, and Pontiac 4-Cylinder Engines
The ATI Super Damper Harmonic Balancer (SKU: ATI917780), engineered for high-performance applications and designed to deliver unmatched reliability and precision. Crafted for Small Block Chevy, 90° V6, and Pontiac 4-cylinder engines, this 7.074-inch steel damper is the go-to choice for enthusiasts and racers seeking durability and efficiency in demanding conditions. With a proven track record in high-RPM environments, this damper ensures your engine runs smoothly, protecting critical components and enhancing overall performance.
Why Choose the ATI Super Damper?
The ATI Super Damper is purpose-built for high-performance engines, offering a robust solution that outperforms other harmonic balancers. Its patented design, featuring a steel inertia weight and precision-machined O-ring grooves, effectively controls torsional crankshaft vibrations, ensuring long-term engine reliability. Tested in extreme conditions, including Winston Cup and drag racing engines, this damper meets and exceeds SFI 18.1 specifications, making it a trusted component for both street and race applications. The black zinc chromate finish provides corrosion resistance, while laser-engraved 360-degree timing marks ensure accurate tuning.
Key Features and Specifications
- Part Number: ATI917780
- Diameter: 7.074 inches (179.7 mm)
- Material: Steel shell and hub with a steel inertia weight
- Construction: 3-ring design with eight computer-machined grooves for O-ring retention
- Balance: Internal balance
- Crank Snout Compatibility: 1.246-inch crank snout for Small Block Chevy
- Keyway: 3/16-inch keyway at standard Small Block 10° location (optional hub #085-916951K for 3/16-inch keyway at 180° from standard)
- Finish: Black zinc chromate for durability and corrosion resistance
- Safety Rating: Exceeds SFI 18.1 specifications
- Timing Marks: Laser-engraved 360-degree marks for precise timing adjustments
- Design: Tunable and rebuildable for long-term use
- Weight: 11.10 lbs
- Package Dimensions: 9.8" H x 9.5" W x 3.9" D
What’s Included in Your Purchase
- ATI Super Damper Harmonic Balancer (ATI917780): One 7.074-inch steel damper with a 1-piece hub
- O-Rings: Pre-installed, dyno-tested durometer O-rings for optimal vibration control
- Warranty Information: Manufacturer’s warranty available (contact ATI customer service for details)
- Note: Mounting hardware is not included. A damper installation tool is required for press-fit installation, and blue Loctite with a torque of 74 ft-lbs plus 75 degrees is recommended for the damper bolt. Sealer is advised to prevent oil leaks through the keyway.
Vehicle Fitment
The ATI917780 Super Damper is designed for the following applications:
- Chevrolet Small Block V8 Engines:
- Years: 1955–1996 (pre-LS engines, including 262, 265, 283, 302, 305, 307, 327, 350, 400)
- Models: Camaro, Corvette, Chevelle, Impala, Nova, and other Small Block Chevy-equipped vehicles
- Chevrolet 90° V6 Engines:
- Years: 1978–1988 (including 200, 229, 262 V6 engines)
- Models: Camaro, Monza, and other 90° V6-equipped vehicles
- Pontiac 4-Cylinder Engines:
- Years: 1982–1993 (2.5L Iron Duke, including Pontiac Fiero, Firebird, and Sunbird)
- Models: Fiero, Firebird, Sunbird, and other 2.5L Pontiac 4-cylinder vehicles
- Crankshaft Compatibility: Fits 1.246-inch crank snout with a 3/16-inch keyway at standard Small Block 10° location. For non-standard keyway applications, use hub #085-916951K.
Installation Notes
- Press-Fit Installation: The ATI917780 is a press-fit damper requiring a proper installation tool to avoid crankshaft rotation during installation, ensuring alignment with the oil pump gear.
- Torque Specifications: Use blue Loctite and torque the damper bolt to 74 ft-lbs plus an additional 75 degrees.
- Sealer Recommendation: Apply sealer to the keyway to prevent oil leaks.
- Compatibility Note: Not recommended for applications exceeding 600 HP on the street when used with the 12% underdrive configuration.
Why ATI917780 Stands Out
Unlike standard harmonic balancers, the ATI Super Damper is designed for high-RPM performance (6000+ RPM), offering precise vibration control and durability. Its lightweight steel construction and tunable design make it a favorite among racers like Nelson Hoyos and Marty Ladwig, who rely on ATI for record-breaking performance. Whether you’re building a street machine or a track-ready beast, the ATI917780 delivers the reliability and performance needed to keep your engine running at its best.
Order Your ATI Super Damper Today
Choose the ATI Super Damper (ATI917780) for your Small Block Chevy, 90° V6, or Pontiac 4-cylinder engine and experience the difference in performance and reliability. Perfect for both street and race applications, this damper is the definitive choice for enthusiasts who demand the best. Order now and take your engine’s performance to the next level.
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