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#42504412HBX
$921.95
/each
Factory Shipped
Quantity
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2-Barrel Carburetor Barrels, Gasoline Fuel Type, Black
| Carburetor Barrels | 2-Barrel |
| Fuel Type | Gasoline |
| Choke Type | No Choke |
| CFM Range | 500-599 CFM |
| CFM | 500 CFM |
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Return PolicyThe Holley Ultra XP 2BBL Carburetor (0-4412HBX) is a 500 CFM race-ready evolution of the legendary Holley 4412 two-barrel that has powered thousands of racers to the winner's circle. All-aluminum construction delivers nearly 50% weight savings over the original zinc version. The Ultra XP 2BBL uses the same 1-3/8 inch venturii and 1-11/16 inch throttle bore dimensions as the classic 4412 and is approved for use in NASCAR Mid-West/West Coast Late Model Divisions. Finished in Hard Core Gray hard-coat anodize with Black billet aluminum metering block and base plate.
Features:
All-aluminum construction for nearly 50% weight savings over the zinc version
Hard Core Gray with Black billet aluminum metering block and base plate
Same 1-3/8 inch venturii and 1-11/16 inch throttle bore as the original 0-4412
No choke tower for unobstructed airflow
Air bleeds moved outward for a smoother transition of airflow into the venturii
Down-leg boosters for improved fuel signal
Air cleaner flange centered over the venturii for improved airflow
5/16-18 bent air cleaner stud included
Screw-in air bleeds for easy fine tuning
Fully adjustable billet aluminum metering block (emulsion bleeds, power valve channel restrictors, idle feed restrictors)
Fuel bowl provides 20% more fuel capacity with internal baffling to control slosh
Clear sight windows on both sides of the bowl for easy fuel level adjustment
Built-in drain plug for easy bowl draining
-8AN O-ring inlet threads (extended -8 O-ring to -8AN male adapter and -8 plug included)
30cc accelerator pump with anti-siphon valve in the main body to reduce pump pull-over
Wedge floats, knurled hand-adjustable curb idle screw
Approved for NASCAR Mid-West/West Coast Late Model Divisions
Specs
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | 0-4412HBX |
| Brand | Holley |
| Carburetor Barrels | 2-Barrel |
| Fuel Type | Gasoline |
| Choke Type | No Choke |
| CFM Range | 500-599 CFM |
| CFM | 500 CFM |
| Carburetor Flange Type | 2-Barrel 4-Bolt |
| Finish | Anodized |
| Material Type | Aluminum |
| Color | Black |
| Secondary Type | None |
| Fuel Inlet Type | Dual |
| Gasket(s) Included | No |
| New or Remanufactured | New |
| Throttle Linkage Type | Universal |
| Supercharged Application | No |
| GENERAL | |
| Model | 2300 |
| Overall Height | 3.25 Inch |
| Inside Diameter | 1.376 Inch venturi |
| Inlet Fitting | -8 AN O-ring inlet threads with -8 O-ring to -8AN male adapter |
| Booster | Downleg |
| Throttle Bore | 1.68 |
| Venturi Diameter | 1.376 Inch |
| Vacuum Ports | Timed spark port and full manifold vacuum port |
| Primary Power Valve | 3.5 |
| Primary Pump Nozzle Size | 28 |
| Primary Jet Size | 74 |
| GTIN Code | 090127713365 |
| Sold in Quantity | Each |
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