Harmonic Damper Balancer SFi Crankshaft 240Z 260Z 280Z 510

New SFi approved harmonic balancer for Datsun 240Z, 260Z, and 280Z, 1970-1978 and 510* 68-73.  Fits all 1968-83 L series engines.  This Sfi damper is designed for higher RPM usage. This is a single groove pulley, so will not work with A/C, however it has 2 thread inserts on the front to add a pulley. These balancers have been tested and have the correct fitment onto the crankshaft.

*L series 4-cylinder engines in the 510 can use this balancer but will require changing other components over to 240Z alignment (water pump, pulley. alternator bracket).