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ATI 917740

Super Damper Chevy 454-502 Mark IV/Gen 5

ATI 917740

085-917740

made in usa
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ATI 917740 Super Damper Chevy 454-502 Mark IV/Gen 5 $338.99
Super Damper
  • Chevy 454-502 Mark IV/Gen 5
  • Steel Shell (1-piece Hub & Inner Shell)
  • 7.074" OD
  • External Balance
  • OE Front
  • 3-Ring

  • Specifications:

    Mounting Hardware Included
    No
    Degree Markings
    Yes
    Safety Rating
    SFI 18.1
    Engine Balance (oz.)
    External, 34.5 imbalance
    Harmonic Balancer Construction
    Elastomer
    Harmonic Balancer Finish
    Black zinc chromate
    Harmonic Balancer Material
    Steel
    Quantity
    Sold individually
    Outside Diameter (in.)
    7.074
    Degree Marking Range
    360
    Manufacturer's Part Number:
    ATI917740

    ATI's patented Super Damper is the only harmonic balancer developed exclusively for high-RPM performance engines (6000+ RPM). Its proven elastomer design is 2-in-1: a 4" diameter damper and a 7" diameter damper in two shells that bolt to the crank hub.

    Inner and outer shells are aluminum or steel to contain the steel inertia weight. The inertia weight has eight computer-machined grooves to retain the proper durometer O-rings (installed at ATI and dyno tested for each application). O-ring life has been tested in Winston Cup competition over two million cycles and in drag racing engines for 10 years (exceeds SFI 18.1 specs). Units can be rebuilt by installing new O-rings. Shells have a black zinc chromate finish with computer-controlled, laser-engraved 360° timing marks.

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