Rebate
Rebate
|
#42504777S
Holley 0-4777S 650 CFM Double Pumper Carburetor
- Features an optimized street/strip calibration that works out-of-the-box
- Has a manual choke (Cable driven, hand operated) for precise cold start control
- Includes mechanical secondaries for awesome tire turning performance
$628.95
/each
In Stock
$699.95
Save $71.00
Quantity
Need Help? Call to Order
Add to a list
Select a vehicle to verify Fitment
Select Vehicle
Product Summary
Universal Fit, 4-Barrel Carburetor Barrels, 650 CFM CFM
- Features an optimized street/strip calibration that works out-of-the-box
- Has a manual choke (Cable driven, hand operated) for precise cold start control
- Includes mechanical secondaries for awesome tire turning performance
- Comes with dual accelerator pumps for additional fuel under initial acceleration
- It is intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
Rebates Available
See rebate detailsKey Specs
| Carburetor Barrels | 4-Barrel |
| Fuel Type | Gasoline |
| Choke Type | Manual |
| CFM Range | 600-699 CFM |
| CFM | 650 CFM |
Need To Know
Need help?
855.313.9176Quick and Easy Returns
Return PolicyHolley 0-4777S Details
Holley 0-4777S Details
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.
- Shiny finish for good 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!
Charts
Rebates
Holley October Promo 10% Off Select Parts Sale
Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.
Guides & Documents
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Holley 0-4777S Specifications
Holley 0-4777S Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 0-4777S |
| Brand | Holley |
| Carburetor Barrels | 4-Barrel |
| Fuel Type | Gasoline |
| Choke Type | Manual |
| CFM Range | 600-699 CFM |
| CFM | 650 CFM |
| Carburetor Flange Type | 4-Barrel Square Bore |
| Finish | Shiny |
| Material Type | Aluminum |
| Color | Silver |
| Secondary Type | Mechanical |
| Fuel Inlet Type | Dual |
| Gasket(s) Included | Yes |
| New or Remanufactured | New |
| Throttle Linkage Type | Universal |
| Supercharged Application | No |
| GENERAL | |
| Model | 4150 |
| Booster | straight |
| Emission Code | 3 |
| Throttle Bore | 1.688 inch |
| Vacuum Ports | 1 timed (spark) port, 1 full, and 1 PCV port |
| Bolt Hole Pattern | 5.160" x 5.625" |
| GTIN Code | 090127427392 |
| Sold in Quantity | Each |
Ratings & Reviews
5
3 Reviews
Customers highly appreciate the product for its perfect fit and immediate functionality. They are impressed with its substantial effect on their vehicles' performance, including the GT-350 Shelby which runs great with our product installed. A standout feature is its ability to enhance the car's running condition, outperforming competitors. Hence, customers express their willingness to repurchase, indicating satisfaction and essential reliability.
Ratings & Reviews
5
3 Reviews
Customers highly appreciate the product for its perfect fit and immediate functionality. They are impressed with its substantial effect on their vehicles' performance, including the GT-350 Shelby which runs great with our product installed. A standout feature is its ability to enhance the car's running condition, outperforming competitors. Hence, customers express their willingness to repurchase, indicating satisfaction and essential reliability.
5
3 reviews
5
3
4
0
3
0
2
0
1
0
Filter by Ratings
Great carb
5.0
10 days ago
Tommy
New mexico
Verified
Great carb worked well on my 355.
Would Recommend
Yes I would buy another - perfect fit and was pre set to run
5.0
a month ago
Rich
Windsor, Co
Verified
Put it on my GT-350 Shelby, started right up and runs great!
Would Recommend
just what i needed
5.0
9 years ago
ace
wichita ks
Verified
my car is running better than ever
Would Recommend
Showing 3 of 3 reviews
Questions & Answers
Questions & Answers
Be the first to ask a question.