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Holley Main Jet .056" Jet size
Standard Main Jet, 1/4-32 Thread, .056" Jet size
Part # 122-57\
Specs| weight | 0.04 |
|---|---|
| length | 5 |
| width | 3.45 |
| height | 0.6 |
| Brand | Holley |
| Category | Air and Fuel Delivery |
| Emission Code | 5 |
| Grade Type | Performance |
| Head Diameter | 0.31 IN |
| Jet Number | 57 |
| Jet Size | 0.056 inch |
| Length | 0.35 IN |
| Material | Brass |
| Orifice Diameter | 0.056 IN |
| Part Type | Carburetor Metering Jet |
| Product Type | Standard Main Jet |
| Sub Category | Carburetion |
| Thread Diameter | 1/4-32 IN |
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.