Learn MoreOverview
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:
- 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
- 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!
Specs
| Barrels | 4 |
|---|---|
| Booster | Straight |
| Brand | Holley |
| CFM | 700 |
| Choke | Manual |
| Emission Code | 3 |
| Finish | Gold Dichromate |
| Fuel | Gasoline |
| Fuel Inlet | Dual |
| Material | Zinc |
| Model | 4150 |
| Primary Main Jet | 69 |
| Primary Power Valve | 6.5 |
| Primary Pump Nozzle Size | 28 |
| Product Type | Carburetor |
| Secondaries | Mechanical |
| Secondary Main Jet | 78 |
| Secondary Pump Nozzle Size | 31 |
| Supercharged Application | No |
| Throttle Bore | 1.688 inch |
| Vacuum Ports | 1 timed (spark) port, 1 full, and 1 PCV port |
| Part Number | 0-4778C |
Tech Resources
Service Parts
![Renew Kit Carburetor Rebuild Kit]()
Renew Kit Carburetor Rebuild Kit Model Number 4150 600, 650, 700, 750, 800, 850 CFM.$38.94Qty:![Jet Assortment Kit]()
![700R-4 KICKDOWN THROTTLE Bracket]()
![GM AOD Kickdown Cable Bracket]()
Kickdown Cable Bracket For Use Only On Models 4150 & 4160 carburetors with 700R-4 transmissions.$24.10Qty:![Fuel Line]()
Fuel Line Chrome For Holley Model 4150 Carburetor 5/8-18 inverted flare inlet. 9.313" center to center.$35.67Qty:![Accelerator Pump Cam]()
![Choke Control Cable]()
![Universal Carb Installation Kit]()
Carburetor installation kit for square and spread bore carburetors$20.03Qty:![Choke Conversion Kit]()
Electric Choke Conversion Kit Standard Finish w/External Vacuum Source$63.00Qty:![Carburetor Throttle Cable Bracket]()
![Accelerator Pump Tuning Kit]()
Accelerator Pump Tuning Kit For Holley 2 BBL And 4 BBL Performance Carburetor$141.95Qty:![Pro Series Secondary Linkage]()
Pro-Series Adjustable Secondary Linkage Kit for all Holley Double Pumper, HP, and Ultra XP carburetors.$34.62Qty:![Tuning/Calibration Kit]()
![Carburetor Adapter Plate]()
![Carburetor Throttle Secondary Adjusting Lever Kit]()
Secondary Throttle Adjusting Lever Kit$44.07Qty:![Black Anodized Adjustable Billet Fuel Line]()
Black anodized adjustable billet fuel line for dual feed Model 4150 and Dominator Carburetors. Adjustable to allow for fitment on various metering block and fuel bowl configurations.$242.95Qty:
Emissions
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing 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
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
*Free Shipping & Handling only offered to the contiguous US on orders over $100.
Some parts are not legal for use in California or other states with similar regulations.
