Menu

Shop

Garage

Cart

Account

Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, Aluminum

  • All aluminum construction saves 3.8lbs. over original models (28% weight savings)
  • 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 and repeatable performance
  • Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship

Key Specs

Carburetor Barrels4-Barrel
Fuel TypeGasoline
CFM1050 CFM
Carburetor Flange Type4-Barrel Dominator
FinishHard Core Gray

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Details

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!

Features:

  • All aluminum construction saves 3.8lbs. over original models (28% weight savings)
  • 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 and 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 and 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!
  • J-Style vent tubes

Charts

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #0-80903HBM
BrandHolley
Carburetor Barrels4-Barrel
Fuel TypeGasoline
CFM1050 CFM
Carburetor Flange Type4-Barrel Dominator
FinishHard Core Gray
GENERAL
Choke TypeNo Choke
CFM Range1,000-1,099 CFM
Material TypeAluminum
Secondary TypeMechanical
Model4500UHP
Fuel Inlet TypeDual
New or RemanufacturedNew
Throttle Linkage TypeUniversal
BoosterAnnular Billet Insert
Number of Circuits3
Emission Code4
Supercharged ApplicationNo
Throttle Bore2.000 inch
Venturi Diameter1.690 Inch
Bolt Hole Pattern5.375" x 5.375"
Primary Main Jet84
Primary Power Valve6.5
Primary Pump Nozzle Size35
Secondary Main Jet84
Primary Outer Air Bleed Sizes Included65
Primary Inner Air Bleed Sizes Included43
Secondary Outer Air Bleed Sizes Included65
Secondary Inner Air Bleed Sizes Included43
Primary Discharge Nozzle Size0.035 Inch
Secondary Discharge Nozzle Size0.035 Inch
GTIN Code090127021194
Sold in QuantityEach