ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Small Block Ford 918920 Heat Mat Tape The cog style driveflange is

The cog style driveflange is 2 lbs

T&D Machine Products offers a shaft rocker system that incorporates many design features of their premium product at a price comparable with stud-mount rockers that requires guide plates

5 oz Cartridge

Easier Installation

No Cutting Or Drilling

ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black Oxide - Internal Balance - Small Block Ford 918920 Heat Mat Tape The cog style driveflange isThe 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