March Underdrive Pulley Kit Performance Series 289/302/351W 1965-1969

March Performance:
80% of 100


  • For 3-Bolt Crankshafts
  • Billet Aluminum Construction
  • Clear Powder Coated Finish
  • 2-Groove V-Belt Design

March Performance Series 2-Groove V-Belt Underdrive Pulley Set for 1965-1969 Mustangs equipped with a small block engine*.

*Small Block Engine refers to 260 / 289 / 302 / 351 Windsor engines.

Three piece set includes crankshaft pulley, waterpump pulley, alternator pulley and nose cover. Increases horsepower by reducing accessory drag. Typical gains of 12.5-15 horsepower at rear wheels.

-Designed for normal street driving
-CNC machined to run perfectly true
-Made from 6061-T6 aluminum for extra strength
-Eliminates belt throwing
-Finished with a ?No Polishing Needed? clear powdercoat

*Requires use of an original style 3-Bolt crankshaft damper and water pump. Must have a passenger side outlet lower radiator hose.

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Mustang years:

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