ATI Super Damper Harmonic Balancer SFI Approved, 6.78& Diameter - ATI918607

Factory dampers and non-dampened pulleys offer no protection to high performanceengines. ATI Super Damper sport compact harmonic balancers provide the balanceddampening of torsional crankshaft vibrations at all rpm levels. The street versions have both OEM serpentine groove locations and are very close to OEM size. The smooth-shell race version dampers are designed for high performance race use.Both dampers come with laser-etched timing and exceedSFI 18.1 Safety Certification standards for competition use.