ATI 918644 Super Damper Serpentine Series Harmonic Balancer GM LS 7.480 in. OD Internal Balance

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ATI designed this 918644 Super Damper Serpentine Series Harmonic Balancer for GM LS Gen III/IV engines. Super Dampers are the only harmonic balancers developed just for high perfor mance engines, tested in Winston Cup competition as well as drag racing engines for over ten years! The inner as well as 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 918644 Super Damper Serpentine Series Harmonic Balancer Features: Fits GM LS Gen III/IV 5.3L engines Engine Balance: Internal SFI Rating: 18.1 Harmonic Balancer Material: Aluminum Shell / Steel Hub Harmonic Balancer Construction: Elastomer Outside Diameter: 7.480 in. Total Weight: 7.9 lbs. Groove Quantity: 6 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