ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Crank Drive Mandrel - Small Block Chevy Cruise Control Edelbrock's high performance hydraulic roller

Edelbrock's high performance hydraulic roller lifters for 1987 and later small-block Chevys are the perfect match for Edelbrock Rollin' Thunder hydraulic roller cams

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ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Crank Drive Mandrel - Small Block Chevy Cruise Control Edelbrock's high performance hydraulic rollerThe 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