Holley Performance Carburetor 650 CFM Double Pumper for High-Performance Engines
Part # 0-4777S SKU HLY0-4777S
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HOLLEY
Holley Performance Carburetor 650 CFM Double Pumper for High-Performance Engines
Highlights
- Metering block material
- Aluminum
- Base plate finish
- Natural
- Cfm
- 650 CFM
- Accelerator pump
- Dual
- Metering block finish
- Tumble Polished
- Primary jets
- 67
- Fuel type
- Gasoline
- Mounting flange style
- Square Bore
- Fuel bowl color
- Silver
- Metering block color
- Silver
- Primary pump nozzle
- 0.028 in
- Secondary pump nozzle
- 0.028 in
- Booster style
- Straight Leg
- Power valve size
- 6.5
- Secondary jets
- 73
- Main body color
- Silver
- Main body finish
- Tumble Polished
- Supercharger calibration
- No
- Inlet distance
- 9-5/16 in
- Color
- Silver
- Fuel bowl material
- Aluminum
- New/remanufactured
- New
- Base plate color
- Natural
- Secondary style
- Mechanical
- Choke type
- Manual
- Fuel inlets
- Dual
- Main body material
- Aluminum
- Model
- 4150
- Base plate material
- Aluminum
- Number of barrels
- 4
- Fuel bowl finish
- Tumble Polished
Description
Holley Performance Carburetor 650 CFM Double Pumper for High-Performance Engines
The Holley Performance Carburetor 650 CFM Double Pumper is a high-quality carburetor designed specifically for high-performance engines. This model is engineered to optimize air and fuel mixture delivery, ensuring your engine operates at its peak performance. With its double pumper design, it provides reliable throttle response and improved fuel distribution, making it ideal for street rods, drag racers, and any application where enhanced performance is essential.
This carburetor is crafted from durable materials that withstand the rigors of high-performance applications. Its innovative design features adjustable jets and a range of tuning options, allowing for precise calibration to fit various engine setups. The Holley 650 CFM Double Pumper is also equipped with a vacuum diaphragm mechanism that helps maintain consistent fuel pressure, further improving engine performance and drivability under various conditions.
FITMENT: The Holley Performance Carburetor is compatible with a wide range of high-performance engine builds. It works seamlessly with V8 engines and is designed for those looking to maximize power output and throttle responsiveness. For best results, confirm compatibility with your specific engine and setup.
Key Features & Benefits
- 650 CFM airflow capacity, providing optimal power for high-performance applications.
- Double pumper design ensures quick throttle response and improved acceleration.
- Adjustable jets allow for precise tuning to match engine demands.
- Durable construction for reliability under high-stress conditions.
- Vacuum diaphragm enhances fuel delivery consistency for balanced performance.
Vehicle fitment
| Make | Model | Submodel | Years |
|---|
No vehicle matches that filter.
Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.
Specifications
| Identification | |
|---|---|
| Brand | HOLLEY |
| Part number | 0-4777S |
| SKU | HLY0-4777S |
| UPC | 090127427392 |
| Dimensions and weight | |
| Dimensions (W × H × D) | 11.00 × 12.00 × 8.00 in |
| Material and finish | |
| Finish | Tumble Polished |
| Color | Silver |
| Series and warranty | |
| Series | Double Pumper |
| Details | |
| Metering block material | Aluminum |
| Base plate finish | Natural |
| Cfm | 650 CFM |
| Accelerator pump | Dual |
| Metering block finish | Tumble Polished |
| Primary jets | 67 |
| Fuel type | Gasoline |
| Mounting flange style | Square Bore |
| Fuel bowl color | Silver |
| Metering block color | Silver |
| Primary pump nozzle | 0.028 in |
| Secondary pump nozzle | 0.028 in |
| Booster style | Straight Leg |
| Power valve size | 6.5 |
| Secondary jets | 73 |
| Main body color | Silver |
| Main body finish | Tumble Polished |
| Supercharger calibration | No |
| Inlet distance | 9-5/16 in |
| Fuel bowl material | Aluminum |
| New/remanufactured | New |
| Base plate color | Natural |
| Secondary style | Mechanical |
| Choke type | Manual |
| Fuel inlets | Dual |
| Main body material | Aluminum |
| Model | 4150 |
| Base plate material | Aluminum |
| Number of barrels | 4 |
| Fuel bowl finish | Tumble Polished |
Shipping and returns
Shipping. Free on every order, US only. Orders arrive in 2–4 days.
Returns. 30-day returns, except in extreme cases.
Support. Our team is available 24/7 for fitment mismatches or any other reason.
Warranty. Full manufacturer guarantee.
Not sure about this part? Ask us.
Fitment, install, what else you need for the job. A parts person answers, usually within one business day.
We answer by email. No account needed.
Questions and answers
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Reviews
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