Holley Standard Main Jets #54

These metering orifices control fuel flow into the metering system and are rated in flow capacity "cubic centimeters per minute" for precise carburetor tuning. The shape of the entry, exit, and size determines flow characteristics, ensuring optimal fuel delivery to your engine.

Features:

All Holley main jets are flow tested and stamped with the correct number for accuracy
Manufactured to high tolerances for consistency
Threaded for easy installation and removal
Brass construction for durability
1/4-32 thread specification
.053" hole size (reference only - sized by actual flow)

Compatibility:

Fits all Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500 carburetors

Important Notes:

Not for use with carburetors originally designed for alcohol
Jet hole sizes provided for reference only - all Holley jets are sized by actual flow and may vary
Sold as a pair (2 jets)
Legal for sale and use on emissions controlled vehicles, uncontrolled vehicles, and racing applications

Performance Benefits:

Changeable for tuning purposes, these jets provide the broadest range of adjustment and performance for most carburetor applications, making them ideal for both street and race performance tuning.