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Holley 121-137

Straight Nozzle Hole size .037"

Holley 121-137
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510-121-137

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Holley 121-137 Straight Nozzle Hole size .037" $13.21
Straight Nozzle
  • Hole size .037''
  • Hollow nozzle screw NOT included

  • Holley 121-137 Details

    Straight Nozzles *For 4150/4160/4500 carbs


  • Includes 2 Gaskets

  • Specifications:

    Pump Discharge Nozzle Gaskets Included
    Yes
    Pump Discharge Nozzle Size (in.)
    0.037
    Pump Discharge Nozzle Style
    Straight-type
    Quantity
    Sold as a pair
    Manufacturer's Part Number:
    121-137

    A wide selection of discharge nozzle sizes is invaluable to properly tune an accelerator pump system. The hole size determines the rate of discharge. A larger hole will shoot fuel at a faster rate with less pressure than a smaller hole. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of .031'').

    *2 gaskets included unless otherwise noted

    121-137 - Holley Accelerator Pump Discharge Nozzles is rated 5.0 out of 5 by 1.
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