ATI Damper - 7.074in - Alum - Chevy BB - 3 Ring

The ATI Super Damper is designed exclusively for high performance Chevy engines, eliminating torsional crankshaft vibrations and exceeding SFI 18.1 specs. This model is black zinc chromate finished and is OEM equipment on ZZ572 GM Crate Engines. It is tunable, rebuildable, and efficient at all RPMs, featuring laser-engraved timing marks. The inner and outer shells are available in aluminum or steel, containing a steel inertia weight with six (2-ring design) or eight (3-ring design) computer-machined grooves to retain proper durometer O-rings (dyno tested for each application). This specific damper is for internally balanced Big Block Chevrolet engines and features a 7.000" outer diameter.