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Must-have Ati 917276 Super Damper Serpentine Series Harmonic Balancer Gm Ls1 6.750 In. Od Internal Balance - Today Only [p8DC2sAu]

$64.99 $207.99 -69%

ATI designed this 917276 Super Damper Serpentine Series Harmonic Balancer for GM LS Gen III/IV engines. Super Dampers are the only harmonic balancers developed just for high performance engines, tested in Winston Cup competition as well as drag racin

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ATI designed this 917276 Super Damper Serpentine Series Harmonic Balancer for GM LS Gen III/IV engines. Super Dampers are the only harmonic balancers developed just for high performance 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 917276 Super Damper Serpentine Series Harmonic Balancer Features:

  • Fits GM LS Gen III/IV 5.7L engines
  • 10% Underdrive with A/C Pulley
  • Engine Balance: Internal
  • SFI Rating: 18.1
  • Harmonic Balancer Material: Aluminum Shell / Steel Hub
  • Harmonic Balancer Construction: Elastomer
  • Outside Diameter: 6.750 in.
  • Groove Quantity: 6
  • Total Weight: 4.5 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.

What Our Customers Say

January 5, 2026

Absolutely no complaints!

It's a very nice product, for sure and certain.

- Bernice Q..

January 5, 2026

Absolutely no complaints!

A product that consistently performs so great.

- Millie B..

January 5, 2026

Absolutely no complaints!

I am very happy with my product and purchase.

- Corinne L..

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