ATI 917470E Super Damper Harmonic Balancer BBM 7.074 in. OD Internal Balance

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ATI designed this 917470E Super Damper Harmonic Balancer for Big Block Mopar engines. Super Dampers are the only harmonic balancers developed just for high performance engines, tes ted in Winston Cup competition as well as drag racing engines for over ten years! The inner and outer shells contain the steel inertia weight that has six 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 917470E Super Damper Harmonic Balancer Features: Fits Big Block Mopar B as well as RB engines Engine Balance: Internal SFI Rating: 18.1 Harmonic Balancer Material: Aluminum Shell / Steel Hub Harmonic Balancer Construction: Elastomer Outside Diameter: 7.074 in. Inertia Weight: 3.4 lbs. Total Weight: 5.0 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