Holley Carburetor 0-80903HBM; Gen 3 Marine Ultra Dominator 1050 CFM 4-Barrel No Choke

$1,573.95

Part #: 0-80903HBM

Brand: Holley

UPC: 090127021194

Estimated Ship Date: 5/31/2025 (From manufacturer)

Specifications Videos

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Details

All Aluminum Construction Saves 3.8 lbs. Over Original Models
Clear Sight Windows On Sides Of Bowl For Fuel Level Adjustments
Drain Plug On Bowl Provides Easy Access To Empty Bowl
Contoured Hex Head Squirter Screws For Streamlined Airflow
28% Weight Savings
Designed For Marine High HP Engines
Fully Machined From Venturi Throat To Throttle Bore
Integrated Idle Bypass Valve Allows For Adjustment Of Idle
12 Hole Billet Booster Superior Atomization/Throttle Response
Metering Blocks Feature Improved True Gasket Sealing
Dual 50CC Accelerator Pumps Fuel From Idle To Full Throttle
Fuel Bowl Provides 20% More Fuel Capacity Controls Slosh

Product Description

The patent pending GEN 3 main–body is 5/16" 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

Carburetor Series:
Gen 3 Marine Ultra Dominator: CFM:
1050 CFM: Number of Barrels:
4-Barrel: Flange:
4500 Dominator: Secondary:
Mechanical: Choke:
No Choke: Main Body/Fuel Bowl Material:
Aluminum: Main Body/Fuel Bowl Finish:
Hard Core Gray: Metering Block Material:
Aluminum: Metering Block Finish:
Hard Core Gray: Throttle Plate Material:
Aluminum: Throttle Plate Finish:
Satin: Metering Block Circuits:
3 Circuit: Booster Type:
Annular: Compatible Fuels:
Gasoline: Fuel Inlet:
Dual: Primary Power Valve Size (from Factory):
6.5 inHg.: Throttle Bore Size:
1.690 in.: Quantity:
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