NTP Holley 0 4777S Double Pumper Carburetor P14764607NTP-H1904777S https://cdnimages.opentip.com/full/NTP/NTP-H1904777S.jpg Holley 0 4777S Double Pumper Carburetor Manufacturer Part Number: H1904777SDouble Pumper CarburetorPtoduct Info Double Pumper Carburetor Shiny Finish 4 bbl 650 cfm Model 4150 Manual Choke Mech. Secondary Dual Fuel Inlet Gasoline Features and Benefits Shiny Finish For Good Looks Optimized Street/Strip Calibration That Works Out Of The Box Manual Choke For Precise Cold Start Control Mechanical Secondaries For Awesome Tire Turning Performance Dual Accelerator Pumps For Add. Fuel Under Initial Acceleration Dual Feed Fuel Inlets For Constant High Volume Fuel Delivery Lightweight Vehicles w/Auto Trans w/High Stall/Low Gearing 100% Wet-Flow Tested To Assure It Arrives Ready To Run Product AttributesBarrel: FourBooster Type: StraightCarburetor Type: 4150CFM: 650Choke: ManualEmission: Without EGRFinish: ShinyFlange: Square BoreFuel Inlet: DualFuel Type: GasolineMaterial: ZincPrimary Main Jet: 67Primary Power Valve: 6.5Secondary Main Jet: 73Secondary Pump Nozzle Size: 28Secondary Type: MechanicalSupercharged Application: NoThrottle Bore: 1.688 in.Type: AutomotiveUsage: Street/StripVacuum Port Quantity: 1 timed (spark) 1 full 1 PCV Part Terminology LabelCarburetorApplication Summary Manual Choke Mechanical SecondariesAssociated Comments 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 14764607 090127427392 10.2000lbs 7.38 11.00 12.50

Holley Performance

734.7465 2025-04-29 Only 2 left In Stock Holley 0 4777S Double Pumper Carburetor

Holley 0-4777S Double Pumper Carburetor

Brand Holley Performance

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Product Description

Manufacturer Part Number: H1904777S

Double Pumper Carburetor

Ptoduct Info

Double Pumper Carburetor
Shiny Finish
4 bbl
650 cfm
Model 4150
Manual Choke
Mech. Secondary
Dual Fuel Inlet
Gasoline

Features and Benefits

Shiny Finish For Good Looks
Optimized Street/Strip Calibration That Works Out Of The Box
Manual Choke For Precise Cold Start Control
Mechanical Secondaries For Awesome Tire Turning Performance
Dual Accelerator Pumps For Add. Fuel Under Initial Acceleration
Dual Feed Fuel Inlets For Constant High Volume Fuel Delivery
Lightweight Vehicles w/Auto Trans w/High Stall/Low Gearing
100% Wet-Flow Tested To Assure It Arrives Ready To Run

Product Attributes

Barrel: Four
Booster Type: Straight
Carburetor Type: 4150
CFM: 650
Choke: Manual
Emission: Without EGR
Finish: Shiny
Flange: Square Bore
Fuel Inlet: Dual
Fuel Type: Gasoline
Material: Zinc
Primary Main Jet: 67
Primary Power Valve: 6.5
Secondary Main Jet: 73
Secondary Pump Nozzle Size: 28
Secondary Type: Mechanical
Supercharged Application: No
Throttle Bore: 1.688 in.
Type: Automotive
Usage: Street/Strip
Vacuum Port Quantity: 1 timed (spark)
1 full
1 PCV

Part Terminology Label
Carburetor

Application Summary
Manual Choke Mechanical Secondaries

Associated Comments

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

Attention CA Residents: Prop 65 Warning

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.