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March Performance 6380

Serpentine Conversion Pulley Set - High Water Flow Ratio Small Block Chevy



March Performance 6380

Part Number: 655-6380

Serpentine Conversion Pulley Set - High Water Flow Ratio
  • Small Block Chevy
  • Standard Rotation Long Water Pump
  • Clear Powdercoat
  • 7" 6&6-Rib Crank Pulley
  • 5-1/4" 6-Rib Water Pump Pulley
  • 2-3/4" 6-Rib Alternator Pulley w/Cover
  • $216.11
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    Made In USA
    FREE Shipping
    March Performance 6380 Serpentine Conversion Pulley Set - High Water Flow Ratio Small Block Chevy $216.11

    March Performance 6380 Details

    Small Block Chevy With Standard Rotation Long Water Pump

    Alternator Belt Size with March Brackets: 42.5'' (Gates #465-K060420)
    Power Steering Belt Size with March Brackets: 35'' (Gates #465-K060345)

    Additional Required Components:

  • Power Steering Pulley Keyway P/N: 655-623
  • Power Steering Pulley Press Fit P/N: 655-624

  • Specifications:

    Hardware Included
    No
    Pulley Style
    Serpentine Pulley
    Air Conditioning Bracket Included
    No
    Air Conditioning Cover Included
    No
    Air Conditioning Pulley Included
    No
    Alternator Brackets Included
    No
    Alternator Fan Included
    No
    Alternator Nose Cover Included
    Yes
    Alternator Pulley Grooves
    6-groove, serpentine
    Alternator Pulley Included
    Yes
    Crankshaft Nose Cover Included
    No
    Crankshaft Pulley Grooves
    6-groove, serpentine
    Crankshaft Pulley Included
    Yes
    Idler Brackets Included
    No
    Idler Cover Included
    No
    Idler/Tensioner Included
    No
    Power Steering Brackets Included
    No
    Power Steering Pulley Included
    No
    Pulley Material
    Billet aluminum
    Pulley Set Style
    High water flow ratio
    Quantity
    Sold as a set of 3
    Water Pump Nose Cone Included
    No
    Water Pump Pulley Grooves
    6-groove, serpentine
    Water Pump Pulley Included
    Yes
    Pulley Finish
    Clear powdercoated
    Manufacturer's Part Number:
    6380

    March Chevy Serpentine Conversion Pulley Sets replace your low performance v-belts, eliminate belt throwing and slip while retaining your standard rotation water pump. These pulley sets are available in three ratios; Performance for limited street/racing applications, Mid Performance for weekend street/track and High Waterflow for daily drivers. Precision CNC machined from 6061-T6 aluminum for extra strength, wear and to run perfectly true. Finished with a ''No Polishing'' clear or protective silver powdercoat for a maintenance-free finish!


    Performance Ratios
    Uses a smaller performance crank pulley and larger water pump pulley to increase horsepower by reducing accessory drag, with typical gains of 12-15 horsepower at the rear wheels.

    Mid Performance Ratios
    Uses performance crank pulley to decrease accessory speed to increase horsepower and a high water flow water pump pulley to maintain cooling.

    High Water Flow Ratios
    Increases cooling by speeding up water flow and fan speed. This helps at critical low speed driving where most overheating occurs.

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