ATI Damper - 6.78in - AL - 6/4 Grv - 10 Per UD - LS1/2/3/6 - 97-13 Y Body - 10 Per UD A/C - 3 Ring

The ATI Super Damper Serpentine Series harmonic balancer (MPN: ATI917278) is a patented, SFI 18.1 compliant engine component designed to eliminate torsional crankshaft vibrations. Featuring an aluminum shell, steel crankshaft hub, and a 6.78-inch outer diameter with 10% underdrive, this internally balanced unit includes laser-engraved 360-degree timing marks and a black zinc chromate finish. It is specifically designed for GM LS1, LS2, LS3, LS6, and L76 engines found in 1997-2013 Chevrolet Corvettes and 2008-2009 Pontiac G8s, and requires a shorter serpentine belt when used with air conditioning.