Superchargers can significantly increase the power of your GM Gen III, IV, or V engine. That is, right up until the harmonic damper slips on the end of the crankshaft due to the increased drag from turning the supercharger pulley.

Summit Racing’s LS Damper Pin Kit has everything needed to pin your harmonic damper to the crankshaft to end slipping once and for all. The kit includes a steel drill sleeve fixture to accurately drill two holes in the damper and crank snout with the included six-inch cobalt drill bit. Also included is a tool hold-down bolt and four 1/4-inch diameter dowel pins.

The Summit Racing™ LS Damper Pin Kit works with all non-keyed GM LS and LT engines with OEM and aftermarket harmonic dampers. Not for use on LS7 engines.

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