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March 23070 BB Chevy Serpentine Bracket & Pulley Kit AC
Part Number: M2723070

Speed Unlimited carries the full line of March components.  We are an Authorized March Warehouse Distributor. 

This is a Brand New March #23070 Aluminum Alternator & Power Steering & AC Brackets & Pulley Kit, Big Block Chevy, Long Water Pump.


March Performance Chevy small block serpentine conversion kits. They are simple to bolt on, while still retaining your standard-rotation long water pump. Serpentine belts eliminate belt throwing. The kits include performance pulleys. The pulleys are CNC-machined from solid billet 6061-T6 aluminum for a spectacular looking machine finish with a perfect fit and extra-high strength. All March Performance billet pulleys and brackets have a maintenance-free clear powdercoating. These performance pulleys will increase your engine by approximately 12-15 HP, depending on the accessories driven.

These kits fit most mid and full size cars from the early 1950s and newer. Kit also fits 1969 and later Camaros and Novas.  Other cars check water pump nose to radiator clearance. Long water pumps extend out 8.5 from the engine block, plus clearance for mechanical or electric fans.

Ultra Kits Includes:

  • Crank pulley
  • Water pump pulley with nose cover
  • Alternator bracket & pulley with alternator fan and nose cover
  • Power steering kit includes power steering brackets and pulley (pulley cap not included)
  • Air conditioning kit includes A/C bracket, idler and A/C nose cover
  • Superior grade 8 mounting hardware


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