Holley Ultra XP 2BBL Carburetor - Holley (0-4412HBX)
Details
- Brand:
- SKU:
0-4412HBX
- GTIN: 00090127713365
- UPC: 090127713365
- Other Names:
holley, carburetor, carb
- Description: The original Holley 0-4412 has powered thousands of racers to the winners' circle! How do you make it better? Add the proven design elements of the popular Ultra series for more tunability, more durability, more weight savings and more features! The Ultra XP 2bbl carburetors feature all aluminum construction for nearly 50% weight savings over their zinc counterparts, contoured venturii inlet for unobstructed airflow, screw in air bleeds for easy fine tuning, black anodized fully adjustable billet aluminum metering block and baseplate, high capacity fuel bowl which features 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh and a centered air cleaner flange for improved airflow and performance. Other notable features include wedged floats, knurled hand adjustable curb idle screw and down leg boosters. Ultra XP 2bbl carburetors are approved for use in NASCAR® Mid-West/West Coast Late Model Divisions and utilize the same venturii and throttle bore dimensions of the classic 4412 2bbl carburetor. Available in shiny or Hard Core Gray finishes, the Ultra XP 2bbl will outperform any production 2bbl available.
500 CFM - 2300 - Hard Core Gray - Gasoline - Condition: New
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Key Product Benefits
- All aluminum construction - for nearly 50% weight savings over zinc version
- Hard Core Gray with Black™ billet aluminum metering block and base plate
- No choke tower for unobstructed airflow
- Air bleeds moved outward to allow a smoother transition of airflow
- Air cleaner flange centered over venturii for improved airflow and performance. 5/16-18 bent air cleaner stud included
- Down-leg boosters for improved fuel signal
- Contoured hex head squirter screw for streamlined airflow
- Internal pump passage on metering block equipped with tunable bleed off
- Same 1-3/8” Venturii & 1-11/16” Throttle Bore size and Throttle Plate/Throttle Shaft size of original 0-4412
- Fuel bowl provides 20% more fuel capacity while controlling slosh with internal baffling
- Clear sight windows on both sides of bowl for easy & safe fuel level adjustments
- Fuel trough designed into floor of bowl to route fuel flow directly to the jets and assists in keeping jets covered by fuel
- Built in drain plug provides easy access to empty contents of bowl
- -8 (O-ring) inlet threads offer a large variety of plumbing options (come with an extended -8 O-ring to -8AN male adapter and -8 plug). Can be plumbed from either side
- Throttle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation
- Throttle shaft capped to prevent entry of debris & contaminates
- 30cc pump with metal lever. Anti-siphon valve in mainbody to reduce pump pull over
- Dedicated race-only throttle lever with all unnecessary street attachment points & tangs removed
- Knurled (hand adjustable) curb idle screw allows for easy idle adjustment without the use of tools
- Set screw for wide open throttle stop adjustment
- Wedge float provides fuel control while cornering
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Additional Information
| Barrel Quantity | 2 |
| Body Color | Hard Core Gray |
| Body Finish | E-Coated |
| Booster Design | Downleg |
| Cubic Feet Per Minute Rating | 500 |
| Finish | Hard Core Gray |
| Flange Type | 2300 2-BBL |
| Grade Type | Performance |
| Linkage Attached | Yes |
| Marine Approved | No |
| Material | Aluminum |
| Mounting Hole Quantity | 4 |
| PADb ID 3239739 | None |
| PADb ID 3294120 | California Proposition 65 |
| PADb ID 3294141 | 2 |
| PADb ID 3294142 | Hard Core Gray with Black |
| PADb ID 3294143 | Downleg |
| PADb ID 3294145 | 3 |
| PADb ID 3294146 | 74 |
| PADb ID 3294147 | 28 |
| PADb ID 3294148 | Carburetor |
| PADb ID 3294149 | No |
| PADb ID 3294150 | 1.688 inch |
| PADb ID 3294151 | 1.376 inch |
| PADb ID 5866181 | Performance and Race |
| PADb ID 5867456 | Aluminum |
| PADb ID 5881167 | Carburetors and Components |
| PADb ID 59310 | New |
| PADb ID 60214 | 2300 |
| PADb ID 60665 | 500 |
| PADb ID 60666 | None |
| PADb ID 74442 | Limited 90 Day |
| PADb ID 81813 | Holley |
| PADb ID 90716 | Gasoline |
| PADb ID 90717 | Single |
| PADb ID 91180 | No |
| Primary Jet Diameter | 74 |
| Primary Power Valve | 3.5 |
| Spacer Included | No |
| UPC | 00090127713365 |
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