ATI Super Damper Harmonic Damper
Part Number: 917286
APPLICATIONS: C&K Body, Chevy SSR & Trailblazer SS, LS1 LS2 4.6L, 5.3L, 6.0L
Outer Diameter: 7.53"
Weight: 9.75 lbs
Note: 5.8% Underdriven A/C pulley. Requires non-stock belt. For OEM A/C pulley, use 916734B.
These Super Damper standard harmonic balancers from ATI are specifically designed for high-rpm engines. Their proven elastomer is designed and tuned to eliminate harmful crankshaft harmonics that cause parasitic horsepower loss. They are actually two dampers in one--a 4 in. diameter inner damper and a 6 3/8 in., 7 in., or 8 in. diameter outer damper in two shells that bolt to the crank hub. These dampers are engineered to all but eliminate worn parts and timing problems. They're tunable in the field, rebuildable, and extremely efficient at all rpm.