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  3. HOLLEY 4779-6

HOLLEY 4779-6 Double Pumper Manual Choke Rat Rod 2538 750CFM

4779-6 Holley Fresh Rebuilt List 2538 Double Pumper 750cfm Manual Choke Rat Rod

( Brand: Holley ), ( Manufacturer Part Number: 4779-6 ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Manufacturer Warranty: No Warranty ), ( Material: Aluminum ), ( Universal Fitment: Yes ), ( Vintage Part: No ), ( Country/region Of Manufacture: United States )

Review HOLLEY Fresh Rebuilt List Double Pumper 750cfm Manual Choke Rat Rod

The Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod is a high-performance carburetor designed for serious enthusiasts and racers looking to enhance the fuel delivery system of their high-horsepower engines. This double pumper carburetor is a top choice among car builders and tuners due to its reliability, ease of adjustment, and impressive flow capacity.

The carburetor features a 750 CFM (cubic feet per minute) airflow rating, making it suitable for large-displacement engines that require ample fuel supply for optimal performance. The Holley 4779-6 is equipped with a double pumper design, which means it has two vacuum pumps that work together to create a powerful vacuum, ensuring consistent fuel delivery even under high-load conditions.

One of the standout features of this carburetor is its manual choke system. The manual choke allows the driver to control the amount of air entering the carburetor, which in turn affects the fuel-air mixture. This feature is particularly useful in cold weather, as it helps the engine start more easily and runs smoother until the engine warms up. The rat rod design of the Holley 4779-6 adds a distinctive look to any engine bay, with its polished aluminum construction and classic appearance.

The Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod comes with a 2500-rated vacuum secondaries, which means it can handle engines with up to 2500 inches of vacuum. This feature ensures that the carburetor can maintain proper fuel delivery even under high-vacuum conditions, such as during aggressive acceleration or underboost scenarios.

This carburetor is also equipped with a vacuum secondary metering system, which allows for precise fuel delivery to the engine. The vacuum secondary metering system works by using the engine's vacuum to control the fuel flow to the secondary throttle bodies. This ensures that the engine receives the exact amount of fuel it needs for optimal performance, regardless of engine load or operating conditions.

The Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod is also easy to adjust and tune, making it a favorite among car builders and tuners. The carburetor features a simple and intuitive adjustment system, allowing users to easily adjust the fuel and air mixture for optimal engine performance. The manual choke system can also be easily adjusted to suit the driver's preference or driving conditions.

In summary, the Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod is a high-performance carburetor that offers reliable fuel delivery, easy adjustment, and impressive flow capacity. Its manual choke system, double pumper design, and vacuum secondary metering system make it a popular choice among car builders and tuners looking to enhance the performance of their high-horsepower engines.

Pros of buying a Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod:

1. High Flow Rate: The Holley 4779-6 has a high flow rate of 750 CFM, which can provide enough fuel to high-performance engines.

2. Double Pumper Design: The double pumper design allows for faster fuel delivery, which can improve engine performance.

3. Manual Choke: The manual choke allows for easy tuning of the carburetor for different driving conditions.

4. Rat Rod Style: The rat rod style of the carburetor can add a unique and stylish look to your vehicle.

Cons of buying a Holley 4779-6:

1. Complexity: The double pumper design and manual choke can make the carburetor more complex to install and tune compared to simpler designs.

2. Price: The Holley 4779-6 is more expensive than some other carburetors on the market.

3. Limited Customization: The rat rod style of the carburetor may not be to everyone's taste, and there may be limited options for customization.

Conclusion:

The Holley 4779-6 2538 Double Pumper 750 CFM Manual Choke Rat Rod is a high-performance carburetor that can provide improved engine performance for high-performance engines. However, its complexity and higher price point may make it less suitable for some users. Ultimately, the decision to buy this carburetor will depend on your specific needs and preferences.

Recommendation:

If you have a high-performance engine and are looking for a carburetor that can provide improved engine performance, the Holley 4779-6 could be a good option for you. However, if you are looking for a simpler or more affordable carburetor, you may want to consider other options. It is always recommended to consult with a professional mechanic before making any major purchases for your vehicle.

Details:

This 750 cfm Double Pumper carb was running and driving before I put it off to the side for my personal stash. No signs of backfires or carbon buildup. This is non-negotiable. Comes EXACTLY as you see it, WITH NEW Blue Base Gasket and Air Cleaner.

But of course will need adjusting to suit your setup once running. Every slot, hole and orifice was poked clean air pressured dry. If you watch my ads, know I build for function over looks but this one is easily a 6 out of 10 in. New gaskets for the valve adjuster screws AND bowl bolt were installed.

No, the Holly cardboard sign and carb adapter plate is NOT included for display only. Venue of sale is Dickson County, TN. Brand New Float Valves installed from the kit. ZOOM in on the hi-Q pics.

Barrels look good. It didn't NEED a rebuild but I did it anyway. Item is boxed up ready to Ship FASSTT. There is ZERO reason to remove the blades nor shafts unless they are worn.

I don't like the cork idle screw gaskets so new O-rings were installed. No ethanol stains or corrosion spots. Metering blocks AND bowl gaskets received the reusable Blue. No measurable slop or play.

Don't assume there are extras when no. Previous Reusable bowl bolt poly washers were reinstalled. Go racing or cruising. I have opened the bowls to show you it wan't sitting at bottom of a lake.

Don't get me started on the Save-A-Buck Chines copies that won't last a cold snap let alone cruise season. Save HUGE money. This is an OVER $700 carburetor new. Accelerator pump reload set as expected, was the secondary WOT peak.

Yes, you can still use it on your race car, rat rod or daily driver. These shafts operate as new. Choke operates as it should. Otherwise, No cracks, damages or repairs to be found.

I also wipe a thin layer of balm on the gaskets to aid in future removal if needed. I have performed all the work for you. Open the FAST SHIPPING box. You literally can save $100s versus a new one.

If I don't say it IS included, NOT included. Products NOT detailed or specified IE extra parts/products/pieces under the item for sale in background, display signs/boxes/blocks/plate/adapters, pointer pens, towels, etc are included this UNLESS explicitly as part of. Most of the pieces that comes in a Made In USA renew kit was used for this rehab. The rest was disassembled for a heat soak bath.

Typical light dings on the bowls from prior removal attempts, a little ding at horn edge which doesn't affect operation I am purely nitpicking here. Old gaskets properly scraped off. The small bits were ultrasonic cleaned and reused. Accelerator pump diaphragms and springs were retained.

part #: 47796 price

  • $120.00

specifications carbcoon:

  • brand: Holley
  • mpn: 4779-6
  • choke type: Mechanical
  • type: Carburetor
  • mounting flange type: Square Bore
  • manufacturer warranty: No Warranty
  • material: Aluminum
  • universal fitment: Yes
  • vintage part: No
  • country/region of manufacture: United States

returns carbcoon:

  • policy: No Returns

shipping carbcoon:

  • cost: $24.95
  • service: Standard
  • type: Fixed
  • transit: 3-7 Days
  • class: Standard

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: Used

payments carbcoon:

  • credit card: Visa
  • other
  • wallet: Google-pay

seller carbcoon:

  • rating: 100.0%
  • city: Charlotte, Tennessee
  • # reviews: 1304

offer carbcoon:

  • started: October 9, 2024
  • sold: 0
  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
choke type: mechanical, type: carburetor, mounting flange type: square bore, manufacturer warranty: no warranty, universal fitment: yes, vintage part: no, country/region of manufacture: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: aluminum, sku: 2500393098916671,

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