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Ships within 48 hours · Estimated delivery Oct 11 - Oct 16
40 Durometer
Pull Down tighten adjustment
Use the IMSA Helmet to OFFROAD Adapter
GM A-Body 1964-66
ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - 28 oz External Balance - Small Block Ford 918895 GBDM3 40 DurometerThe patented ATI Super Damper is the only damper designed exclusively for high performance engines. Eliminates torsional crankshaft vibrations Exceeds SFI 18. 1 specs Laser engraved 360 timing marks Black zinc chromate finished Inner and outer shells are available in aluminum or steel contain the steel inertia weight. The inertia weight has six (2 ring design) or eight (3 ring design) computer machined grooves to retain the proper durometer O rings
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