ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black - Internal Balance - Small Block Chevy 917320 57900BK 1969-1970 Mercury Marauder

1969-1970 Mercury Marauder

or 7 Series Ignition with its white wire or points terminal

or anywhere added protection may be required

The advanced Digital Stepper Motor Drive keeps needle movement smooth and precise

1975-1980 Chevrolet C10 Suburban

ATI Super Damper SFI 18.1 Harmonic Balancer - 6.325 in OD - Black - Internal Balance - Small Block Chevy 917320 57900BK 1969-1970 Mercury MarauderATI Super Damper has become one of the industry's standards in harmonic vibration control, combining two dampening surfaces in one unit. At 6000 RPM, digital vibration tests proved the ATI Super Damper to be 30% more effective than original equipment style dampers. ATI Super Damper consists of an outer shell, inner shell, crankshaft hub, and eight individual elastomers. Reductions in torsional vibrations provide increased horsepower while improving