The Gen 3 Marine Ultra Dominator carburetor features a main body 5/16" taller than the previous generation, with larger radius air entries optimized via CFD software for smoother flow into fully machined big-bore venturis. High-capacity fuel bowls offer 20% more fuel capacity with an integrated fuel shelf and internal baffling to control slosh, and all-aluminum construction with 12-hole billet booster inserts and fully tunable billet metering blocks delivers dyno-tested performance for marine high-horsepower engines.
Specifications:
- Brand: Holley
- Category: Air and Fuel Delivery
- CFM: 1050
- Barrels: 4
- Model: 4500
- Secondaries: Mechanical
- Finish/Body Color: Hard Core Gray
- Material: Aluminum
- Fuel: Gasoline
- Carburetor Use: Marine
- Throttle Bore: 2.000 inch
- Venturi Size: 1.690 inch
- Primary/Secondary Main Jet: 84
- Primary Power Valve: 6.5
- Fuel Inlet: Dual
- Warning: California Proposition 65
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 0-80903HBM
New or modified fuel lines are required if replacing an existing Holley Dominator 4500-series carburetor, since prior bowl machining was 7/8-20; this carburetor's center-to-center fuel inlet measurement is 11.5".
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What CFM rating does this carburetor have?
1050 CFM.
Is this a mechanical or vacuum secondary carburetor?
Mechanical secondaries.
What is it designed for?
Marine high-horsepower engines, on the 4500 Dominator flange.
Is this legal for street use?
No, this part is for Racing Use Only vehicles and is not legal to install on emissions-controlled street vehicles.
