1050 CFM - 4500 - Mechanical Secondaries - Hard Core Gray - Gasoline
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!
  • All aluminum construction saves 3.8lbs. over original models (28% weight savings)
  • J-Style vent tubes
  • Gray anodized finish with black anodized billet aluminum metering block and booster inserts
  • Designed for use on Marine high horsepower engines
  • Fully machined from venturi throat to throttle bore for predictable & repeatable performance
  • Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship
  • 12 hole billet booster inserts for superior atomization and crisp throttle response
  • Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
  • Dual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
  • Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
  • Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
  • Built in drain plug in front center of bowl provides easy access to empty contents of bowl
  • 8 (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
  • Factory ready TPS mounting points for use with data acquisition systems (Holley TPS P/N 534-214 available)
  • Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
  • Contoured hex head squirter screws for streamlined airflow
  • Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Information:

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"
Attributes
Barrel Four
Barrel Quantity 4
Barrels 4, 4
Billet Color Hard Core Gray with Black, Hard Core Gray with Black
Body Color Hard Coat Gray
Body Finish E-Coated
Body Material Aluminum
Booster Annular, Annular
Booster Type Annular
Brand Holley, Holley
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Carburetor Material Aluminum, Aluminum
Carburetor Type 4500
Carburetor Use Marine, Marine
Category Air and Fuel Delivery, Air and Fuel Delivery
CFM 1050, 1050
CFM Rating 1050
Choke None, None
Choke Type None, None
Circuit 3, 3
Circuit Count 3
Color Hard Coat Gray
Condition New, New
Country of Origin (Primary) US
Cubic Feet Per Minute Rating 1050, 1050
Emission Without EGR
Emission Code 4, 4, Off Road
Finish Hard Core Gray, Hard Core Gray
Flange 4500
Flange Shape Square
Flange Type Dominator/4500, Dominator/4500
Fuel Gasoline, Gasoline
Fuel Inlet Dual, Dual
Fuel Type Gasoline, Gasoline
Grade Type Performance, Performance
Harmonized Tariff Code (Schedule B) 8409915085
Hazardous Material Code N
High Speed Air Bleed 43, 43
Idle Air Bleed Size 65, 65
Intermediate Air Bleed 71, 71
Life Cycle Status Code Available to Order
Linkage Attached Yes, Yes
Marine Approved Yes, Yes
Marine Engine Size Universal, Universal
Marine Use Yes, Yes
Material Aluminum, Aluminum
Model 4500, 4500
Mounting Hole Quantity 4, 4
NAFTA Preference Criterion Code B
Needle and Seat Size 120;120, 120;120
Part Type Carburetor, Carburetor
Primary Jet Diameter 84, 84
Primary Main Jet 84, 84
Primary Main Jet Size 84, 84
Primary Power Valve 6.5, 6.5
Primary Pump Nozzle Size 35, 35
Product Type Carburetor, Marine Carburetor
Sale Category Carburetors and Components
SDR Required Flag N
Secondaries Mechanical, Mechanical
Secondary Main Jet 84, 84
Secondary Main Jet Size 84, 84
Secondary Pump Nozzle Size 35, 35
Secondary Type Mechanical
Spacer Included No, No
Sub Category Carburetion, Carburetion
Supercharged Application No, No
Supercharger Compatible No, No
Throttle Bore 2.000 in., 2.000 inch
Throttle Bore (in.) 2.000
Throttle Bore Diameter 2.000 inch, 2.000 inch
Type Marine
Usage Marine
Venturii Size 1.690 in., 1.690 inch
Venturii Size (in.) 1.690
Warning California Proposition 65, California Proposition 65
Warranty Limited 90 Day, Manufacturer's Limited 90 Day Warranty
GTIN 00090127021194

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