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  3. HOLLEY 6622

HOLLEY 6622 International Ihc Barrel Carburetor

fits model: Scout. year: 1974–1981.

6622 Holley 1974 1981 International Ihc Scout 2 Barrel Heavy Duty Carburetor

( Brand: Holley ), ( Manufacturer Part Number: 6622 ), ( Country Of Origin: United States ), ( Type: 2210 ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement )

Review HOLLEY International Ihc Barrel Heavy Duty Carburetor fits SCOUT 1974–1981

Introducing the Holley 6622 1974-1981 International IHC Scout Barrel Carburetor, a high-performance replacement solution for your International Harvester Scout's fuel delivery system. This carburetor is specifically designed to fit and function optimally with 1974 to 1981 International Scout models.

The Holley 6622 carburetor boasts a traditional barrel design, housing four meticulously calibrated barrels. Each barrel is equipped with a float bowl designed to evenly distribute fuel for consistent combustion. The carburetor is also outfitted with a power valve, which enhances low-end torque and power.

This carburetor is constructed from high-quality materials, ensuring durability and reliability. The primary and secondary metering rods are crafted from billet aluminum, while the floats are made from heavy-duty phenolic material. The carburetor housing is made from cast aluminum for added strength and heat dissipation.

The Holley 6622 carburetor comes with a number of features to make installation and tuning easier. It includes a built-in fuel pressure regulator, eliminating the need for an external regulator. The carburetor also features an adjustable idle circuit, allowing for fine-tuning of the engine's idle speed and quality.

Additionally, this carburetor is designed to be easy to tune, with access to key adjustments located on the top of the carburetor. The primary jet size can be easily adjusted using the jet selector plate, while the secondary jet size can be adjusted using the fine-tuning screws. The carburetor also includes a vacuum secondary, providing improved idle and cruise performance.

In summary, the Holley 6622 1974-1981 International IHC Scout Barrel Carburetor is a high-performance, reliable, and easy-to-tune replacement for your International Scout's stock carburetor. With its traditional barrel design, durable construction, and convenient features, this carburetor is an excellent choice for those looking to enhance their Scout's fuel delivery system.

Holley 6622 1974-1981 International IHC Scout Barrel Carburetor: A Comprehensive Analysis

The Holley 6622 carburetor is a popular choice for those restoring or modifying 1974-1981 International Harvester Scout vehicles. This article provides an in-depth analysis of the pros and cons of this carburetor to help you make an informed decision.

Pros:

1. Wide Compatibility: The Holley 6622 carburetor is specifically designed for the International Harvester Scout engines during the 1974-1981 period. It is a direct bolt-on replacement for the original carburetor, making installation relatively easy.

2. Improved Performance: Holley carburetors are renowned for their excellent performance and fuel efficiency. This model is no exception. The 6622 carburetor delivers a smoother idle, improved throttle response, and better fuel economy compared to the stock carburetor.

3. Durability: Holley carburetors are built using high-quality materials and precise manufacturing processes. The 6622 model features a heavy-duty cast aluminum body, making it resistant to corrosion and capable of withstanding the rigors of off-road use.

4. Customizability: Holley offers various options for tuning the 6622 carburetor to suit specific engine configurations. This includes adjustable main jets, secondary emulsion circuits, and vacuum secondary options.

5. Availability and Support: Holley is a well-established brand, and the 6622 carburetor is widely available through various retailers and performance parts stores. Additionally, Holley provides extensive technical support and resources to help with installation and tuning.

Cons:

1. Cost: Compared to the stock carburetor, the Holley 6622 carburetor is more expensive. However, the performance and durability benefits may justify the investment for some enthusiasts.

2. Complexity: While the Holley 6622 carburetor offers numerous tuning options, this complexity may deter some users. Proper setup and tuning require a good understanding of carburetion principles and the time to make adjustments.

3. Potential for Over-Fueling: Improper tuning of the Holley 6622 carburetor could lead to over-fueling, resulting in poor performance and increased emissions. It is essential to follow the manufacturer's instructions and adjust the carburetor according to the specific engine configuration.

4. Physical Size: The Holley 6622 carburetor is slightly larger than the stock unit, which may require modifications to the intake manifold or air cleaner assembly for proper clearance.

Conclusion:

The Holley 6622 carburetor is an excellent choice for those seeking improved performance, durability, and customizability for their 1974-1981 International Harvester Scout vehicles. While there are cons to consider, such as cost and potential complexity, the benefits of this carburetor often outweigh the drawbacks. Prospective buyers should carefully weigh their specific needs, budget, and technical capabilities before making a decision.

Recommendation:

If you're looking to improve the performance and longevity of your 1974-1981 International Harvester Scout and have the necessary technical knowledge, the Holley 6622 carburetor is a solid investment. It offers excellent fuel efficiency, smooth operation, and the ability to be fine-tuned to your specific engine configuration. However, if you're on a tight budget or want a simpler solution, you may wish to consider other options. Regardless of your decision, careful research and proper installation are crucial for optimal performance.

Details:

Mixture idle Screws Pre-Set Can't have your car running to rich, gas prices are awful, but can't it lean, if not you'll will stubble. What has been done to the carburetor. Holley list number R7214. Was never used or installed.

Accelerator Pump/Plunger. Has to be just right. Bushings in Throttle Shaft. RPM Pre-Set Can't have that to high and you can't it low.

We Pre-set it for you at the perfect performance/gas. Live Engine Testing. Fast Idle Pre-Set Cold Start can be a pain

Ultra-Sonic Machine Cleaning. Linkages/Rods/Springs/levers. Remanufactured Holley 2210 2bbl Carburetor. Perfect for the restoration purist.

Let us pre-set it for you so if your late work don't have to worry about car not starting. May fit other applications not listed. IH part number 465529C91. Choke Pull Off.

part #: 6622 prices

  • $210.00-$799.99

specifications carbcoon:

  • for models: Scout
  • for years: 1974-1981
  • brand: Holley
  • mpn: 6622
  • country of origin: United States
  • type: 2210
  • manufacturer warranty: 1 Year
  • fitment type: Direct Replacement

general carbcoon:

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

returns carbcoon:

  • policy: No Returns

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offer carbcoon:

  • best offers: True
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: January 30, 2026
  • quantity: 1

seller carbcoon:

  • city: Tygh Valley, Oregon
  • # reviews: 165
  • rating: 100.0%

shipping carbcoon:

  • cost: $28.92
  • type: Calculated
  • carrier: USPS
  • transit: 5-11 Days
  • service: USPS Priority Mail, USPS Ground Advantage
  • class: Expedited, Standard
for models: scout, for years: 1974-1981, country of origin: united states, type: 2210, manufacturer warranty: 1 year, fitment type: direct replacement,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 9943564867047603,

Holley 6622 Is Similar To:

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2 offers $210.00–$799.99 USD
  • Offer #1: $799.99 price + $0.00 shipping estimate = $799.99* total. ). New mounting Gasket(s) included.FREE SHIPPING
  • Offer #2: $210.00 price + $24.80 shipping estimate = $234.80* total. Used parts are not perfect and need restoration, repair or rebuild. All parts are used unless stated otherwise.+$24.80 shipping

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