


Designed for Small Block Chevy applications. This March Performance pulley kit replaces the factory crank, water pump and alternator pulleys with a matched set CNC-machined from 6061-T6 billet aluminum. Matched diameters keep the accessory drive working together, and the billet construction is lighter and stronger than stamped steel or cast pulleys. It is a straightforward bolt-on upgrade that also dresses up the front of the engine.
Application: Chevy small block 7" standard rotation long water pump. Kit includes: 6331 double 6&5-rib crank pulley (5 3/4") 6312 single 6-rib water pump pulley (6 1/4") 208; single 6-rib alternator pulley (2 3/4").
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