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  3. STROMBERG 381204

STROMBERG 381204 Carburetor 5500/6500 V6

fits model: 6500, 351ci, 5500. make: Gmc. year: 1967–1969.

381204 Stromberg Ww Carburetor 1967-1969 Gmc Truck 5500/6500 351ci V6 - Rebuilt

( Brand: Stromberg ), ( Manufacturer Part Number: 381204 ), ( Type: Carburetor )

Review STROMBERG Carburetor Gmc Truck 5500/6500 V6 Rebuilt fits 6500 351CI 5500 1967–1969

The Stromberg 381204 carburetor is a classic automatic choke, venturi-style carburetor specifically designed for 1967 to 1969 GMC 5500 and 6500 series trucks with a 351ci V6 engine. This carburetor is widely recognized for its superior performance and durability.

The 381204 model is unique for its automatic choke mechanism that ensures easy starting in various weather conditions. The four-barrel carburetor features four venturis that work in unison to ensure efficient fuel delivery, enabling the engine to perform powerfully under varying loads.

This Stromberg carburetor comes with a secondary metering system, which enables a smooth, progressive power delivery that maximizes horsepower. The secondary circuits work in conjunction with the primary momentum circuits, ensuring optimal fuel mixture under all engine speeds.

The 381204 Stromberg carburetor is equipped with a built-in fuel pressure regulator that optimally maintains fuel pressure at the fuel pump, eliminating the need for a separate fuel pressure regulator, thus simplifying installation and reducing the overall cost.

The carburetor housing is constructed from lightweight, impact-resistant aluminum, making it strong and durable while minimizing weight. The venturi tubes are reinforced to resist cavitation, ensuring a consistent fuel mixture even at high engine speeds.

The Stromberg 381204 carburetor comes with adjustable idle mixtures, allowing for fine-tuning the engine for optimal performance under different operating conditions. The fuel bowl is accessible for easy maintenance, ensuring quick and convenient adjustments to the float level.

The carburetor features an adjustable accelerator pump, allowing quicker throttle response, and a vacuum secondary system, enabling smooth idling and better fuel efficiency. These advanced features contribute to the carburetor's renowned reputation for enhanced power delivery and excellent fuel economy.

The stock-appearing finish of the Stromberg 381204 carburetor allows easy integration with the engine bay, providing a seamless upgrade for your vintage GMC 5500 or 6500 series truck. Moreover, its classic design aligns with the aesthetic appeal of these iconic vehicles, making it a popular choice for purists and enthusiasts alike.

Upgrading your GMC truck with the Stromberg 381204 carburetor not only improves engine performance and drivability but also adds value to your classic vehicle, making it the go-to solution for those seeking a precise and effective replacement for older carburetors.

The Stromberg 381204 carburetor is a single-barrel, downdraft carburetor that was commonly used on 1967 to 1969 GMC 5500 and 6500 trucks with the 351ci V6 engine. Here are some pros and cons of installing this carburetor on your vehicle:

Pros:

1. Authenticity and Originality: The Stromberg carburetor is an original equipment manufacturer (OEM) part for these decades-old trucks. Installing it may contribute to the preservation or restoration of your vehicle's nostalgic value.

2. Improved Performance: Many enthusiasts argue that the Stromberg carburetor delivers better performance and driveability compared to factory-installed alternatives, especially in older vehicles with Engines that tolerate richer fuel mixtures.

3. Filtering Capabilities: The carburetor has an integrated fuel filter, which can save space and time by eliminating the need for installing an external fuel filter.

4. Availability and Affordability:the Stromberg carburetor is readily available from various automotiveparts suppliers and may be more cost-effective than some aftermarket alternative.

Cons:

1. Complexity and Adjustment: The Stromberg carburetor can be more complex to tune and fine-tune compared to modern carburetors or fuel injection systems due to the multiple adjustments and settings required to optimize performance.

2. Cold Starting Challenges: Some users report difficulties starting their engines in cold weather, which may necessitate additional starting aids like electric heaters or plugs.

3. Vacuum Leaks: The potential for vacuum leaks is higher with older carburetors like the Stromberg due to the natural wear and tear of rubber parts, which could lead to a lean fuel mixture, poor idle, or even complete stalling.

4. Fuel Economy: The Stromberg carburetor may not be as efficient as fuel injection in terms of fuel economy, which could lead to higher fuel consumption and increased operating costs.

Conclusion:

The Stromberg 381204 carburetor can be an excellent choice for those restoring or preserving a 1967-1969 GMC 5500 or 6500 pickup truck with the 351ci V6 engine, as it is an authentic and original part for these vehicles. However, it comes with challenges such as complexity, cold starting difficulties, potential vacuum leaks, and less fuel efficiency compared to modern alternatives. Ultimately, it depends on your priorities, budget, and desired level of commitment. If you are willing to invest your time, resources, and patience in tuning and maintaining the carburetor, it could reward you with better performance and a more authentic driving experience. However, if convenience and ease of operation are more significant considerations for you, it might be worth weighing the pros and cons carefully and exploring alternative options.

Details:

Has a few gaskets with it. It is safe to say that this part has been sitting on a shelf for many years. It had the rebuild work receipt with it dated 1986, so safe to say that is when was rebuilt. Stromberg WW 381204 Carburetor 1967-1969 GMC Truck 5500/6500 351CI V6 - Rebuilt.

I included the manual page. This part comes from my late grandfathers business. 2 Burl Manual Choke. See photos for part, accessories and condition.

He was a mechanic and rebuild since the late 1930's.

specifications carbcoon:

  • for models: 6500, 351ci, 5500
  • for makes: Gmc
  • for years: 1967-1969
  • brand: Stromberg
  • mpn: 381204
  • type: Carburetor

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  • rating: 100.0%
  • city: North Canton, Ohio
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  • condition: New other see details
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

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for models: 6500, 351ci, 5500, for makes: gmc, for years: 1967-1969, type: carburetor,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 3623788935412761,

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