ATI Performance Harmonic Balancer Super Damper 7.074 in OD SFI 18.1 Al 917220

ATI Performance Harmonic Balancer Super Damper 7.074 in OD SFI 18.1 Al

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-machined 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