SKU: 26827054167

500 CFM Ultra XP 2BBL Carburetor - 0-4412BKX

Sale price$359.98 Regular price$399.98
Save 10%

Pay in installments of $100.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

500 CFM Ultra XP 2BBL Carburetor - 0-4412BKXOverview: 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

Overview:

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.

Features:

  • All aluminum construction - for nearly 50% weight savings over zinc version
  • Tumble polished aluminum 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!

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Barrels 2
Billet Color Shiny with Black Billet
Booster Down Leg
Brand Holley
Carburetor Use Performance and Race
CFM 500
Choke None
Condition New
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel Inlet Dual
Marine Use No
Material Aluminum
Model 2300
Primary Main Jet 74
Primary Power Valve 3.5
Primary Pump Nozzle Size 28
Product Type Carburetor
Secondaries None
Supercharged Application No
Throttle Bore 1.688 inch
Venturii Size 1.376 inch
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26827054167

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 29 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
Y
Verified Purchase
Yogi at the Beach
Chelsea, US
★★★★★ 5
8oz Size Perfect for Small Amounts of Milk
Size: 6.8oz/200ml Silver
This is a quality pitcher with a nice weight to it. I only use 80ml of milk in my cappuccinos and had trouble getting a good microfoam when using a larger pitcher. This little 8oz pitcher is the perfect size and makes it easier to achieve microfoam. The only potential issue I see is the pitcher may overflow if using more than 80ml although this may be due to my technique.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
K
Verified Purchase
Karen Loeza
Louisville, US
★★★★★ 5
Pretty and functional
Size: 6.8oz/200ml Matte Black
I really liked the size and functionality of this milk pitcher, it’s really elegant looking as well. I use it for when I want to make an iced coffee that I need to mix stuff with and it holds a good amount of coffee. Easy to clean and pour as well, for what I paid I think it’s worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
J
Verified Purchase
James Jones
Boise, US
★★★★★ 5
Just right!
Size: 6.8oz/200ml Silver
Works great with my cappuccino machine. One espresso or two! Perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
M
Verified Purchase
Mikey T.
Birmingham, US
★★★★★ 5
Small, works with (some) induction units, just what I needed.
Size: 6.8oz/200ml Silver
It's small and the good thing about it is that it works with my induction (Nuwave Flex Precision, 1,300W.) Not perfectly, but will work. It doesn't work with my larger Duxtop (9600LS/BT-200DZ, 1,800W) because it is looking for more metal to sense before it can trigger the induction function. So, if you have a smaller induction unit it might work. If not, get a CozyKit 5.5" induction diffuser (on Amazon) and heat it up on that via induction. That diffuser should work on any induction unit. I guess we can't do links anymore even if on Amazon?? from attempting to post other reviews, so this is the text discr for the diffuser on Amazon, it's hard to find the smaller one otherwise: (Heat Diffuser Stainless Steel Induction Adapter Plate Removable Handle Coffee Milk Cookware Induction Hob Heat Cooking Diffuser for Electric Stove 5.5inch)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2025
S
Verified Purchase
sahajanand
San Leandro, US
★★★★★ 4
Well-Made and Handy for Small Drinks
Size: 6.8oz/200ml Silver
This HULISEN milk frothing pitcher is well made and feels sturdy in hand. The stainless steel finish looks nice and it pours smoothly, which helps when frothing or steaming milk. The 6.8oz size is perfect for single drinks, though it may feel small if you make multiple cups at once. Overall, it does the job well and is a useful addition to a home coffee setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025

recommand products