SBM 7.074 Harmonic Damper - SFI

Patented ATI Super Damper standard harmonic balancers are the only crankshaft dampers designed exclusively for high performance engines. Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. The inertia weights have six (2-ring design) or eight (3-ring design) computer-machine grooves to retain the proper durometer O-rings (dyno tested for each application). Whether you race or just drive on the street, ATI harmonic balancers are the perfect choice. Features include: eliminates torsional crankshaft vibrations, exceeds SFI 18.1 specs, black zinc chromate finished, OEM equipment on a variety of crate engines, tunable, rebuildable, and extremely efficient at all rpm, laser-engraved 360 degree timing marks, supercharger and power steering drive pulleys available for some applications. This damper is designed to be used with a 1971 and newer timing cover with the pointer on the driver side. Damper has an offset pulley bolt hole. 3-ring balancer will stick out forward an additional 0.450 in. further than a stock balancer. Hubs should clear most cast in timing tabs. Due to variations over the years grinding, cutting, and welding may be needed for clearance on some applications.