DinanAuthorized Reseller

Holley Carburetor Standard Main Jet

Part # 122-51

  • Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500
  • Sizes from 40-110
  • 1/4-32 Thread
  • .050" Jet size
  • Jet Hole sizes provided for reference only . All Holley jets are sized by actual flow and may vary from sizes above.

Description

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number.

Specifications

Grade TypePerformance
Head Diameter0.31 in
Jet Number51
Jet Size0.050 inch
Length0.35 in
MaterialBrass
Orifice Diameter0.05 in
Thread Diameter1/4-32 in
UPC / GTIN00090127021323
WarrantyManufacturer's Limited 90 Day Warranty