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  • Holley 0-80804HBX 850CFM Ultra XP Carburetor
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4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
4150-Alum-Ultra-Xp-850-Cfm-(Hard-Black)
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Holley 0-80804HBX 850CFM Ultra XP Carburetor

2 sold in last 8 days
Holley
ds_BBVL_0-80804HBX
In stock
Carburetor
$2,309.75 $2,070.24
$2,070.24
customers are viewing this product
Holley 0-80804HBX 850CFM Ultra XP Carburetor
Details

Xtreme Performance - Holley Ultra XP (TM) carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all-new Hard Core Gray (TM) hard coat anodized finish with Black (TM) billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black (TM) or Red (TM) metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!

Specifications:

Description_ASC This carburetor was designed with a dual mounting pattern, so that it can be installed on a manifold machined for a 4150 or 4500 series carburetor.
Description_DEF Carburetor
Description_DES 850CFM Ultra XP Carburetor
Description_INV 4150 ALUM ULTRA XP 850 CFM (HARD BLACK)
Description_EXT Ultra XP Carburetor; 4 bbl; 850 cfm; 2 Circuit Metering; Model 4150UXP; Mech. Secondary; Gas; Dual Fuel Inlet; Hard Core Gray w/Black Metering Block/Booster Inserts;
Description_FAB Aluminum Construction (saves 4.5 lbs - 38% weight savings)
Description_FAB Hard Core Gray with black anodized billet aluminum metering block and booster inserts
Description_FAB Designed for use on Drag race, circle track, or any high horsepower engines
Description_FAB Contoured venturri inlet offers balanced airflow for increased horsepower
Description_FAB Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii
Description_FAB Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
Description_FAB Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship. Helps maintain good idle control when using radical camshafts.
Description_FAB Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
Description_FAB Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
Description_FAB Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
Description_FAB Built in drain plug in front center of bowl provides easy access to empty contents of bowl
Description_FAB 8AN (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
Description_FAB 4 corner idle allows you to precisely control your idle system
Description_FAB Mechanical Secondaries for perfect off the line launches
Description_FAB Elongated (dual pattern) mounting holes allow fitment on intakes with square flange (Holley 4150 (TM) style) or large flange (Holley Dominator (R) style)
Description_FAB Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
Description_FAB Primary throttle shaft capped to prevent entry of debris & contaminates
Description_FAB Factory machined accessory mounting hole for easy addition of adjustable primary throttle stop. New secondary pump cam lever designed to provide positive throttle stop on secondary side
Description_FAB Stainless steel adjustable secondary link. Provides choice of 1:1 or progressivesecondary throttle actuation for ultimate control of secondary opening rate
Description_FAB Baseplate designed with a boss that can be consumer machined for vacuum source
Description_FAB Includes notched float and jet extensions
Description_FAB 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Description_KEY holley; carburetor; carb; alum carb
Description_MKT Xtreme Performance - Holley Ultra XP (TM) carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all-new Hard Core Gray (TM) hard coat anodized finish with Black (TM) billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black (TM) or Red (TM) metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!
Description_SHO Carburetor
CFM 850
Circuit 2
Primary Power Valve 4.5
Usage Street/Hi-Performance
Booster Type Down Leg
Choke None
Barrels 4
Fuel Gasoline
Material Aluminum
Secondary Type Mechanical
Primary Main Jet 84
Finish Hard Core Gray
Emission Without EGR
Carburetor Type 4150
Billet Color Hard Core Gray with Black
Fuel Type Gasoline
Booster Down Leg
Brand Holley
Condition New
Emission Code 3
Primary Pump Nozzle Size 32
Sale Category Carburetors and Components
WARNING CA Proposition 65 Yes
Secondary Pump Nozzle Size 32
Flange Square Bore
Barrel Four
Secondary Main Jet 84
WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Type Automotive
Fuel Inlet Dual
Supercharged Application No
Carburetor Use Professional Race
Marine Use No
Model 4150
Product Type Carburetor
Secondaries Mechanical
Throttle Bore 1.750 inch
Venturii Size 1.563 inch
Warning California Proposition 65
Warranty Limited 90 Day
Length 9.3000
Width 12.6000
Height 14.3000
Weight 9.3850
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