ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Crank Drive Mandrel - Small Block Chevy 23-FLT-NFO-XL 250 Diameter Rollers

250 Diameter Rollers

1/8" and 1/4" thick

Chevrolet: K10 Pickup 66 - 69 5

Padding is made of a closed-cell foam material that does not absorb moisture and progressively absorbs shock by becoming denser as it compresses

Billet aluminum distribution block and easy flow handle

ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Crank Drive Mandrel - Small Block Chevy 23-FLT-NFO-XL 250 Diameter RollersThe 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