HOLLEY Trk Gov 4BBL. R7386 Trk. H.d

( Brand: Holley ), ( Type: Carburetor ), ( Manufacturer Warranty: 1 Month ), ( Manufacturer Part Number: R7386 ), ( Mounting Hardware Included: No ), ( Material: Steel ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review HOLLEY 4bbl. Gmc Trk..d Inch W. Gov fits 366 1976

Holley 4bbl Carburetor R7386 for 1976 GMC TRK HD 366 cid (6.5L) V8 Gas Engine

The Holley 4-barrel carburetor R7386 is a high-performance replacement for the original carburetor on 1976 GMC TRK HD trucks equipped with the 366 cubic inch (6.5L) V8 gas engine. This carburetor is designed to deliver improved fuel efficiency, increased power, and better idle quality compared to the factory unit.

1. 4-barrel design: This carburetor features four venturi barrels, which provide a larger bore and more airflow than a single or dual-barrel carburetor. This results in better fuel atomization and more efficient combustion, leading to increased horsepower and torque.

2. High-performance air cleaner: The included air cleaner assembly is designed to provide excellent filtration and airflow, ensuring a consistent fuel-air mixture for optimal engine performance.

3. Adjustable idle mixture: The R7386 carburetor comes with adjustable idle mixture circuits, allowing you to fine-tune the engine idle for smooth and stable operation.

4. Accelerator pump: The carburetor includes an accelerator pump, which ensures proper fuel delivery during acceleration, improving throttle response and power delivery.

5. Electric choke: This carburetor features an electric choke system, making starting easier and more reliable, especially in cold weather conditions.

6. Compatibility: The R7386 carburetor is specifically designed for use with the 1976 GMC TRK HD 366 cid (6.5L) V8 gas engine. It is a direct replacement for the factory carburetor and is compatible with the original engine wiring harness and throttle linkage.

7. Durability: Holley carburetors are known for their superior build quality and durability. The R7386 carburetor is no exception, featuring heavy-duty components and a robust design that can withstand the demands of heavy-duty truck use.

8. Easy installation: The R7386 carburetor is designed for easy installation, with clear installation instructions and easily accessible adjustments.

9. Improved fuel economy: By optimizing the fuel-air mixture and promoting more efficient combustion, the R7386 carburetor can help improve fuel economy compared to the factory unit.

10. Enhanced power and performance: With its larger bore and improved fuel delivery, the R7386 carburetor can help unleash the hidden power and performance potential of your 1976 GMC TRK HD 366 cid V8 engine.

The Holley 4-barrel carburetor R7386 is a top-performing replacement for the original carburetor on 1976 GMC TRK HD trucks with the 366 cubic inch (6.5L) V8 gas engine. It delivers improved fuel efficiency, increased power, and better idle quality, making it an excellent choice for those seeking to enhance the performance and reliability of their truck. With its durable construction, easy installation, and compatibility with the original wiring harness and throttle linkage, the R7386 carburetor is an essential upgrade for any GMC TRK HD enthusiast.

The Holley R7386 4bbl carburetor is a popular choice for restoring or upgrading a 1976 GMC TRK HD 366 gov vehicle. Here are some potential pros and cons to consider before making a purchase:

1. Holley carburetors have a reputation for high-performance and durability, which can be beneficial for a heavy-duty truck like the GMC TRK HD.

2. The R7386 model is specifically designed for 1973-1981 GM vehicles with a 350 or 355 cubic inch engine, making it a suitable match for the 366 gov engine.

3. The 4-barrel design allows for better fuel efficiency and increased horsepower compared to a single carburetor.

4. Holley offers various customization options, such as different air intake systems, to help tailor the carburetor to specific engine requirements.

5. Holley provides excellent customer support and resources, including detailed installation instructions and troubleshooting guides.

1. The R7386 carburetor can be more expensive than other aftermarket options, due to Holley's reputation for high-quality products.

2. Installing a carburetor like the R7386 can be a complex process, especially for those without prior experience. It may require professional assistance or extensive research and preparation.

3. Carburetors require regular maintenance, including adjustments and cleaning, to ensure optimal performance and prevent damage.

4. Some customers have reported issues with fuel distribution and idling, which may require additional tuning or modification to the carburetor or engine.

The Holley R7386 4bbl carburetor offers several advantages for those looking to restore or upgrade the fuel system of their 1976 GMC TRK HD 366 gov. Its high-performance design and durability make it a reliable choice, while the availability of customization options and excellent customer support are additional benefits. However, the cost and complexity of installation may be drawbacks for some buyers. Ultimately, the decision to purchase the R7386 carburetor should be based on individual preferences, budget, and technical expertise.

For those with prior experience in carburetor installation and a willingness to invest in a high-performance aftermarket option, the Holley R7386 4bbl carburetor is a recommended choice for upgrading the fuel system of a 1976 GMC TRK HD 366 gov. For those without experience or limited budget, it may be worth considering alternative, more affordable options. Prospective buyers should also carefully consider the resources and support they have available for installation and maintenance.

part # r7386 prices

• $200.00-$500.00

specifications carbcaddie:

• for models: 366
• for makes: Gmc
• for years: 1976
• brand: Holley
• type: Carburetor
• manufacturer warranty: 1 Month
• manufacturer part number: R7386
• mounting hardware included: No
• material: Steel
• vintage part: Yes
• country of origin: United States

offer carbcaddie:

• started: May 16, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

payments carbcaddie:

• other
• wallet: Google-pay
• credit card: Diners-club

seller carbcaddie:

• # reviews: 3145
• rating: 99.5%

shipping carbcaddie:

• transit: 3-6 Days
• type: Calculated
• service: UPS Ground
• class: Standard
• cost: $17.51
• carrier: UPS

returns carbcaddie:

• policy: No Returns

general carbcaddie:

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

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