Carburetor Jet; Standard Main Jet; 1/4-32 UNF Thread; Hole Size 0.051 in.; Pair; - Holley - 122-51

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. Click on Catalog Product Page for complete listing of jets and sizes.

Resources

Installation Instructions

Specifications:

Carburetor Type	Holley
Description_ASC	Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
Description_ASM	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. Click on Catalog Product Page for complete listing of jets and sizes.
Description_DEF	Carburetor Metering Jet
Description_DES	Carburetor Jet
Description_EXT	Carburetor Jet; Standard Main Jet; 1/4-32 UNF Thread; Hole Size 0.051 in.; Pair;
Description_FAB	0.050 in. Jet Size
Description_FAB	1/4 in.-32 Thread
Description_FAB	Fits Models 2010/2300/4010/4011/4150/4160/4500
Description_FAB	Sizes From 40-110
Description_FAB	Standard Main Jet
Description_INV	JET
Description_LAB	Proposition 65
Description_MKT	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. Click on Catalog Product Page for complete listing of jets and sizes.
Description_MKT	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. Click on Catalog Product Page for complete listing of jets and sizes.
Description_SHO	Carburetor Jet
Jet Number	51
Jet Size	0.050
Level1	Level 1: Air and Fuel Delivery
Level2	Level 2: Carburetion
WARNING CA Proposition 65	Yes
WARNING CA Proposition 65 Message	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov