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Holley 850 CFM Double Pumper Carburetor 0-4781S

Holley 850 CFM Double Pumper Carburetor 0-4781S

Item #21936 Brand: Holley

Manual Choke Mechanical Secondaries-4150
Quantity:
Quantity: close
Only $557.95

• This item ships directly from the manufacturer

• Expected delivery time is 1 – 2 weeks

• Not available in Eastwood Retail Stores

• Order may not be changed or canceled

 

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Details

Holley Double Pumper® carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile.

The Double Pumper is designed for use on lightweight vehicles with a manual transmission or an automatic transmission with a high stall and low rear end gears. The Double Pumper is available in a gold dichromate or tumble polished shiny finish and features dual accelerator pumps for additional fuel under initial acceleration; mechanical secondaries for great performance; dual feed fuel inlets for constant high volume fuel delivery and a manual choke for easy control of engine warm up.

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.

Features:

  • Shiny finish for good looks
  • Optimized street/strip calibration that works out-of-the-box
  • Manual choke (Cable driven, hand operated) for precise cold start control
  • Mechanical secondaries for awesome tire turning performance
  • 4 corner idle allows you to precisely control your idle system
  • Dual accelerator pumps for additional fuel under initial acceleration
  • Dual feed fuel inlets for constant high volume fuel delivery
  • Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

More info...
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Contents

(1)Holley 850 CFM Double Pumper Carburetor 0-4781S


Specifications

Barrels: 4
Booster: Down Leg
Brand: Holley
CFM: 850
Choke: Manual
Emission Code: 3
Finish: Shiny
Fuel: Gasoline
Fuel Inlet: Dual
Material: Aluminum
Model: 4150
Primary Main Jet: 80
Primary Power Valve: 6.5
Primary Pump Nozzle Size: 31
Product Type: 4150 Model Carburetor
Secondaries: Mechanical
Secodary Main Jet: 80
Secondary Pump Nozzle Size: 31
Supercharged Application: No
Throttle Bore: 1.750 inch
Vacuum Ports: 1 timed (spark) port, 2 full, 1 PCV port
Part Number: 0-4781S

EMMISIONS

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:


• 1965 and older U.S. manufactured California Certified vehicles
• 1967 and older U.S. manufactured Federally Certified vehicles
• 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

• Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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


Instructions

Holley Carburetor Selector

Instructions for Part# 0-4781S

Carburetor Numerical Listing for Part #0-4781S



Warranty

1 Year Manufacturers Warranty


Eastwood Offers Free Lifetime Technical Support


Click here for product SDS information


Attention California Residents - Proposition 65


Proposition 65 Warning WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov






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Questions & Answers