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650 CFM Classic Holley Carburetor-Spreadbore Design

Electric Choke Vacuum Secondaries

PART# 0-80555C

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This carburetor has a spreadbore flange. It is designed to be used with intake manifolds with the spreadbore flange like the Q-jet carburetors.

Overview

Do you like the tunability Holley's modular carbs, but need to simply replace a Q-jet? The spread bore bolt pattern of the 0-80555C lets you do just that. It has vacuum secondaries and electric choke, so it is useable on a wide variety of vehicles and its single fuel inlet that is in the standard Q-jet location makes it easy to bolt on. Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's. ***The 0-80555C is designed to fit GM spread bore passenger car and light truck applications. It is not compatible with Ford or Chrysler Spread bore applications. The 0-80555C is not recommended for any RV applications. The 0-80555C is not designed to pass any emission laws. The 0-80555C is to be used only for competition/off road vehicles or vehicles not required to comply with any exhaust emissions standards.

Features:

  • Gold Dichromate finish for corrosion resistance and classic Holley looks
  • Performance replacement for Q-Jet carbs (spread bore bolt pattern)
  • Universal calibration for easy bolt-on performance
  • Factory preset electric choke for easy startups
  • Vacuum secondaries for use on wide variety of vehicles. Compensate for all vehicle weights, gearing & transmissions to allow smooth opening of secondaries.
  • Single feed fuel inlet for easy installation
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Specs

Barrels4
Billet ColorNone
BoosterStraight
BrandHolley
CFM650
ChokeElectric
Circuit2
Emission Code2
FinishGold Dichromate
FuelGasoline
Fuel InletSingle
MaterialZinc
Model4175
Primary Main Jet62
Primary Power Valve6.5
Primary Pump Nozzle Size40
Product TypeCarburetor
SecondariesVacuum
Supercharged ApplicationNo
Throttle Bore1.375 inch
WarrantyLimited 90 Day
Part Number0-80555C

Service Parts


Emissions

This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Application Chart for Part# 0-80555C
Application Chart for Part# 0-80555C
This carburetor has a spreadbore flange. It is designed to be used with intake manifolds with the spreadbore flange like the Q-jet carburetors.

Warranty Information

Limited 90 Day: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.

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