1. Carburetor Parts On Sale
  2. sku: 3581335562140772
  3. BUICK LESABRE

BUICK 320-01138 Carburetor 8-455 4BC

fits model: Lesabre. make: Buick. year: 1974.

320-01138 Buick Carburetor 8-455 4bc Without Stage 1 Fits 74 297134

( Part Type: Carburetor ), ( Conditions Options: Rwd, 455 ), ( Genuine Oem: Yes ), ( Ipn: 320-01138 )

Review BUICK Carburetor 4bc Without Stage fits LESABRE 1974

The Buick 320-01138 carburetor, part number 8-455 4BC 74, is a vital component of certain Buick engines produced in the 1970s. This carburetor is a 2-barrel Quadrajet model, which delivers an optimal balance between power and fuel efficiency.

The Quadrajet carburetor is known for its advanced design, which includes a large, single-plane intake manifold and two separate barrels. Each barrel is equipped with a unique metering block, allowing for precise fuel delivery to each cylinder. This results in smooth idling, improved fuel economy, and enhanced engine performance.

The primary features of this Buick carburetor include:

1. Two 2-barrels: Each barrel is designed to feed fuel to two cylinders in the engine. This configuration ensures reliable fuel delivery, leading to consistent engine performance.

2. Accelerator Pump: Located at the bottom of the carburetor, the accelerator pump is responsible for providing additional fuel to the engine during rapid acceleration, ensuring smooth transitions between throttle applications.

3. Choke: The choke system is designed to enrich the fuel mixture during engine start-up, making it easier to start the engine in cold conditions.

4. Venturi: The venturi is a constricted area within each barrel where the airflow is accelerated, creating a low-pressure area that draws fuel into the engine.

5. Idle Mixture Control: The idle mixture control allows the driver to adjust the fuel-air ratio for optimal engine idling, improving the driving experience and fuel efficiency.

The Buick 320-01138 carburetor is a high-quality, rebuildable unit that can be restored to its original performance level with the right tools and expertise. Its advanced design and proven reliability make it an excellent choice for vintage Buick enthusiasts and restorers seeking to maintain or restore their vehicles to their former glory.

To ensure proper installation and optimal performance, it is recommended to follow the manufacturer's instructions carefully, and consider consulting a professional mechanic or carburetor specialist if needed. With the right care and attention, this Quadrajet carburetor will continue to provide reliable and efficient power to your Buick engine for years to come.

Buick 320-01138 carburetor 8-455 4BC 74 is a specific model of a carburetor that was used in various Buick vehicles during the 1970s. Here are some potential pros and cons of buying this carburetor for restoration or replacement purposes.

Pros:

1. Authenticity: This carburetor is an original part manufactured by Buick. It may be preferred by some enthusiasts who value originality over aftermarket alternatives.

2. Availability: This carburetor is relatively easy to find for sale from various sources, including salvage yards, online marketplaces, and specialty shops.

3. Fitment: As a factory-installed component, it is designed to fit perfectly in the specific vehicle application for which it was intended.

Cons:

1. Condition: Since this carburetor is used, its condition may vary. It may require rebuilding or repair before it can be installed and function properly.

2. Cost: Original carburetors can be more expensive than aftermarket alternatives due to their scarcity and demand.

3. Performance: Depending on the condition of the carburetor, it may not provide optimal performance compared to a rebuilt or new aftermarket carburetor.

Conclusion:

The Buick 320-01138 carburetor 8-455 4BC 74 can be an excellent choice for those who prioritize authenticity and originality in their vehicle restoration projects. However, it may come with some challenges and additional costs due to its used condition. If performance is a priority, considering a rebuilt or new aftermarket carburetor may be a better option.

Recommendation:

If you are looking for an authentic carburetor for your Buick vehicle and prefer original components, then the Buick 320-01138 carburetor 8-455 4BC 74 could be a great option for you. However, if you want to ensure optimal performance and minimize potential repair costs, you may want to consider a rebuilt or new aftermarket carburetor. Ultimately, your decision should be based on your personal preferences, budget, and the specific requirements of your vehicle restoration project.

part # lesabre prices

  • $7.60-$213.75

specifications carbcaddie:

  • for models: Lesabre
  • for makes: Buick
  • for years: 1974
  • part type: Carburetor
  • conditions options: Rwd, 455
  • genuine oem: Yes
  • interchange part number: 320-01138

returns carbcaddie:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days

payments carbcaddie:

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

general carbcaddie:

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

offer carbcaddie:

  • sold: 0
  • quantity: 1
  • started: April 16, 2025
  • availability: In Stock
  • options: Ship-to-home

shipping carbcaddie:

  • class: Standard
  • service: FedEx Ground or FedEx Home Delivery
  • transit: 2-5 Days
  • carrier: FedEx
  • cost: $24.71
  • type: Calculated

seller carbcaddie:

  • # reviews: 4056
  • rating: 98.5%
for models: lesabre, for makes: buick, for years: 1974, part type: carburetor, conditions options: rwd, 455, genuine oem: yes,
manufacturer: buick, category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 3581335562140772,

Buick LESABRE Is Similar To:

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5 offers $7.60–$213.75 USD
  • Offer #1: $19.50 price + $6.50 delivery = $26.00* total. Repackaged back in the day by Holley with a number 9-24 New Rochester Quadrajet choke pull-off for 70-74 Buick with a 455 engine, and maybe other Buick V-8 applications.+$6.50 shipping
  • Offer #2: $213.75 price + $15.60 delivery = $229.35* total. Bracket is stamped RP 38731 ALT STD GAGE RP 38728. 1973-1974 V8 455 c.i.+$15.60 shipping
  • Offer #3: $7.60 price + $7.00 delivery = $14.60* total. Rochester Quadrajet 4bbl Carburetor. 4360 Spreadbore 4bbl carburetor.+$7.00 shipping
  • Offer #4: $16.15 price + $7.00 delivery = $23.15* total. 1972-1974 V8 350 c.i., 455 c.i 1968-1971 V8 350 c.i., 400 c.i., 425 c.i., 430 c.i.+$7.00 shipping
  • Offer #5: $42.75 price + $7.00 delivery = $49.75* total. 1959-1961 Corvette (excludes dual 4bbl carburetors, excludes Fuel Injection). 1968 Camaro V8 327 c.i.+$7.00 shipping