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  • Holley 0-80903HBM 1050 CFM Gen 3 Marine Ultra Dominator Carburetor
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Holley 0-80903HBM 1050 CFM Gen 3 Marine Ultra Dominator Carburetor

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Holley
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Carburetor
$2,589.74
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Holley 0-80903HBM 1050 CFM Gen 3 Marine Ultra Dominator Carburetor
Details

The patent pending GEN 3 main body is 5/16 in. taller than the previous generation! This new height allowed for larger radius air entries which were optimized using Computational Fluid Dynamics (CFD) software to deliver smoother flow into new fully machined, big bore venturii. The main-body also features an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship as well as an extended air cleaner flange for easy air scoop attachment when using the available air scoop adapter. The Gen 3 utilizes 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, 12-hole billet booster inserts, fully tunable billet metering blocks, adjustable external linkage, throttle position sensor mounting points and knurled (hand adjustable) curb idle screws. Each calibration has been dyno tested to deliver proven performance!

Specifications:

Description_ASC New or modified fuel lines are required (if replacing existing Holley Dominator 4500 series carburetor - previous bowl machining was 7/8-20, Aluminum Ultra Dominator carburetors come assembled with -6AN to SAE 8 port fittings). 0-80903HBM center to center fuel inlet measurement is now 11.5"
Description_DEF Carburetor
Description_DES 1050 CFM Gen 3 Marine Ultra Dominator Carburetor
Description_EXT Gen 3 Marine Ultra Dominator Carburetor; 4bbl; 1050 cfm; 3 Circuit Metering; Model 4500; Dual Fuel Inlet; No Choke; Hard Core Gray w/Black Metering Block/Booster Inserts;
Description_INV 4500 1050 CFM 3 CIR - HARD BLACK MARINE
Description_FAB All aluminum construction saves 3.8lbs. over original models (28% weight savings)
Description_FAB Gray anodized finish with black anodized billet aluminum metering block and booster inserts
Description_FAB Designed for use on Marine high horsepower engines
Description_FAB Fully machined from venturi throat to throttle bore for predictable & repeatable performance
Description_FAB Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship
Description_FAB 12 hole billet booster inserts for superior atomization and crisp throttle response
Description_FAB Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
Description_FAB Dual 50cc 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 8 (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
Description_FAB Factory ready TPS mounting points for use with data acquisition systems (Holley TPS P/N 534-214 available)
Description_FAB Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
Description_FAB Contoured hex head squirter screws for streamlined airflow
Description_FAB Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor
Description_FAB 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Description_FAB J-Style vent tubes
Description_KEY Marine; marine dominator
Description_MKT The patent pending GEN 3 main body is 5/16 in. taller than the previous generation! This new height allowed for larger radius air entries which were optimized using Computational Fluid Dynamics (CFD) software to deliver smoother flow into new fully machined, big bore venturii. The main-body also features an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship as well as an extended air cleaner flange for easy air scoop attachment when using the available air scoop adapter. The Gen 3 utilizes 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, 12-hole billet booster inserts, fully tunable billet metering blocks, adjustable external linkage, throttle position sensor mounting points and knurled (hand adjustable) curb idle screws. Each calibration has been dyno tested to deliver proven performance!
Description_SHO Carburetor
Fuel Type Gasoline
Billet Color Hard Core Gray with Black
Secondary Type Mechanical
Booster Annular
Primary Pump Nozzle Size 35
WARNING CA Proposition 65 Yes
Intermediate Air Bleed 71
Barrels 4
Finish Hard Core Gray
Usage Marine
Choke None
Marine Engine Size Universal
Emission Code 4
Model 4500
Product Type Marine Carburetor
Warranty Limited 90 Day
Secondary Pump Nozzle Size 35
Carburetor Type 4500
Needle and Seat Size 120;120
Barrel Four
Emission Without EGR
Idle Air Bleed Size 65
Flange 4500
Condition New
Marine Use Yes
Throttle Bore 2.000 inch
Venturii Size 1.690 inch
Warning California Proposition 65
Primary Power Valve 6.5
Supercharged Application No
Booster Type Annular
Secondary Main Jet 84
Circuit 3
High Speed Air Bleed 43
CFM 1050
Type Marine
WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Material Aluminum
Primary Main Jet 84
Fuel Inlet Dual
Brand Holley
Carburetor Use Marine
Secondaries Mechanical
Fuel Gasoline
Length 9.4000
Width 12.7000
Height 14.3000
Weight 10.8500
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