Name: Holley 04781S Double Pumper Carburetor
SKU: 04781s
Price: 1134.49 USD
Availability: InStock

HOLLEY part description

Product Description

Double Pumper Carburetor

Application Summary

Manual Choke Mechanical Secondaries

Features & Benefits

Shiny Finish For Good Looks
Optimized Street/Strip Calibration That Works Out Of The Box
Optimized street/strip calibration that works out-of-the-box
Manual Choke For Precise Cold Start Control
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 Add. Fuel Under Initial Acceleration
Dual accelerator pumps for additional fuel under initial acceleration
Dual Feed Fuel Inlets For Constant High Volume Fuel Delivery
Lightweight Vehicles w/Auto Trans w/High Stall/Low Gearing
Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
100% Wet Flow Tested By Holley Technicians
100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Arrives Ready To Run

Holley Performance Emission Code 3: 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

Product Attributes

Barrel	Four
Booster Type	Down Leg
Carburetor Type	4150
CFM	850
Choke	Manual
Emission	Without EGR
Finish	Shiny
Flange	Square Bore
Fuel Inlet	Dual
Fuel Type	Gasoline
Material	Aluminum
Primary Main Jet	80
Primary Power Valve	6.5
Secondary Main Jet	80
Secondary Pump Nozzle Size	31
Secondary Type	Mechanical
Supercharged Application	No
Throttle Bore	1.750 inch
Type	Automotive
Usage	Street/Strip
Vacuum Port Quantity	1 timed (spark); 1 full; 1 PCV
Barrel Quantity	4
Barrels	4
Body Color	Polished
Body Finish	Polished
Booster	Downleg
Booster Design	Downleg
Brand	Holley
Carburetor Material	Aluminum
Carburetor Use	Performance and Race
Category	Air and Fuel Delivery
Choke Type	Manual
Condition	New
Cubic Feet Per Minute Rating	850
Emission Code	3
Flange Type	Square/4150
Fuel	Gasoline
Grade Type	Performance
Linkage Attached	Yes
Marine Approved	No
Marine Use	No
Model	4150
Mounting Hole Quantity	4
Part Type	Carburetor
Primary Jet Diameter	80
Primary Pump Nozzle Size	31
Product Type	Carburetor
Secondaries	Mechanical
Spacer Included	No
Sub Category	Carburetion
Vacuum Ports	1 timed (spark) port, 1 full, and 1 PCV port
Warning	California Proposition 65
Warranty	Manufacturer's Limited 90 Day Warranty

Additional Information

Country of Origin (Primary)	US
Harmonized Tariff Code (Schedule B)	8409915085
Harmonized Tariff Code (HTS)	8409915085
NAFTA Preference Criterion Code	B
Remanufactured Part	N
Warranty Special	Manufacturer's Limited 90 Day Warranty
Warranty Special UOM	TX
	EAR99
UPC	00090127427477

Holley® has been the undisputed leader in fuel systems, powering nearly every NHRA Pro-Stock champion and Monster Energy NASCAR Cup team with its expansive line of carburetors for over 40 years. Today, its EFI products and products for GM's popular LS engine are what dominate the performance world and the LS scene respectively. But aside from carburetors, Holley is also widely recognized for its intake manifolds, performance fuel pumps, and engine dress-up products. And to better serve its customers, it partnered with numerous other companies, such as MSD, a company developing electronics for the entire powertrain, and Powerteq, the world leader in performance tuning in the automotive market.