ATI 917060 Super Damper Harmonic Balancer BBC 7.074 in. OD Internal Balance

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ATI designed this 917060 Super Damper Harmonic Balancer for Big Block Chevy engines. Super Dampers are the only harmonic balancers developed just for high performance engines, test ed in Winston Cup competition as well as drag racing engines for over ten years! The steel inner and outer shells contain the steel inertia weight that has eight computer machined grooves to retain the proper durometer O-rings. This balancer comes in a black zinc chromate finish with computer controlled, laser engraved 360 degree timing marks. From the drag strip to the street, ATI harmonic balancers are the perfect choice. ATI 917060 Super Damper Harmonic Balancer Features: Fits Big Block Chevy 396, 427 as well as 454 engines Engine Balance: Internal SFI Rating: 18.1 Harmonic Balancer Material: Steel Harmonic Balancer Construction: Elastomer Outside Diameter: 7.074 in. Inertia Weight: 4.5 lbs. Total Weight: 11.5 lbs. Degrees Outer: 360 Keyway Quantity: One Keyway Size: 3/16 in. Finish: Black Zinc Chromate Quantity: Sold Individually Located just outside of Baltimore, MD, ATI Performance Products specializes in automatic transmissions as well as their components for the Racing markets. ATI's product line includes a full line of automatic transmissions and related parts, including harmonic balancers, crankshaft hubs, as well as timing pointers. Fasteners, fluids, tailhousings, as well as other drive train parts are also manufactured. Show more