LS1/LS2 ATI Super Damper Serpentine Series Harmonic Balancer

Steel hub is equipped with a 8mm HTD x 25-tooth pulley. Standard 6-rib on shell. Weight is 6.75 lbs. For LS1 or LS2 engines. Includes required 1.250 in. longer crankshaft bolt.

Are you looking for maximum engine protection and performance for your serpentine belt application? ATI Super Damper serpentine harmonic balancers contain grooves for serpentine belts machined into the outer damper shell. The dampers come standard with six outer grooves for standard OEM drive systems. Specifically designed for high-rpm engines, they’re tuned to eliminate the harmful crankshaft harmonics that cause parasitic horsepower loss. These balancers are tunable in the field, rebuildable, and extremely efficient at all rpm.