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Holley 0-4781C 850 CFM Double Pumper Carburetor
Holley 0-4781C 850 CFM Double Pumper Carburetor

Holley 0-4781C 850 CFM Double Pumper Carburetor

Universal Fit, 4-Barrel Carburetor Barrels, Gasoline Fuel Type, Manual Choke Type, 850 CFM CFM

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Holley 0-4781C 850 CFM Double Pumper Carburetor
Holley 0-4781C 850 CFM Double Pumper Carburetor
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Part # 42504781C
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Carburetor Barrels:
4-Barrel
Fuel Type:
Gasoline
Choke Type:
Manual
CFM:
850 CFM
CFM Range:
800-899 CFM
Carburetor Flange Type:
4-Barrel Square Bore
Finish:
Dichromate
Material Type:
Aluminum/Zinc
Color:
Gold
Secondary Type:
Mechanical
Model:
4150
MFG. Part #:
0-4781C
Fuel Inlet Type:
Dual
Sold in Quantity:
Each
Booster:
Down Leg
Emission Code:
3
Supercharged Application:
No
Throttle Bore:
1.750 inch
Vacuum Ports:
1 timed (spark) port, 1 full, and 1 PCV port
GTIN Code:
090127471081
Bolt Hole Pattern:
5.160" x 5.625"

Info

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.

  • Gold Dichromate finish for corrosion resistance and classic Holley 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!

Installation Instructions (PDF)

Installation Instructions (PDF)

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

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