ROCHESTER 64-7231 Quadrajet Carburetor Holley 29240MD 4BBL

( Brand: Rochester ), ( Manufacturer Part Number: 64-7231 ), ( Type: Carburetor ), ( Oe/oem Part Number: 29240md )

Review ROCHESTER Buick Quadrajet Carburetor Reman By Holley

The Rochester 64-7231 29240MD Buick Quadrajet 4bbl Carburetor, manufactured by Holley, is a high-performance replacement carburetor designed specifically for 1967 to 1973 Buick vehicles equipped with the Quadrajet 4-barrel carburetor system. This carburetor is an excellent upgrade for original equipment, delivering improved fuel efficiency, increased horsepower, and smoother engine performance.

This Holley carburetor boasts a classic 4-barrel Quadrajet design, maintaining the original appearance of your Buick engine while providing modern performance benefits. The carburetor body is constructed from high-quality aluminum, ensuring durability and longevity. The vacuum secondary system is designed to provide excellent idle and cruising performance, while the primary circuit ensures optimal power delivery throughout the RPM range.

One of the key features of this carburetor is its advanced metering design, which includes a 650 CFM primary venturi and 770 CFM secondary venturis. These venturis provide precise fuel metering, ensuring optimal fuel-air mixture for maximum engine performance. The carburetor also includes a Holley Street Avenger vacuum secondary system, which provides additional fuel for improved low-end torque and power.

The Rochester 64-7231 29240MD Quadrajet Carburetor is equipped with a precision-machined throttle shaft and throttle plates, ensuring smooth throttle response and accurate metering. It also includes a rebuildable floater bowl, which makes it easy to rebuild and maintain the carburetor for optimal performance.

Other notable features include a 1.5-inch primary bore, a 2-inch secondary bore, and a 1.75-inch throttle bore. The carburetor also includes a built-in fuel pressure regulator, eliminating the need for an external regulator. Additionally, it comes with a 6-7100-style air cleaner base, making it a direct replacement for the original equipment.

Installing this Holley carburetor is a straightforward process, as it retains the same mounting points and dimensions as the original Quadrajet carburetor. It is also compatible with various fuel systems, including mechanical and electric fuel pumps, making it a versatile option for Buick enthusiasts.

In summary, the Rochester 64-7231 29240MD Buick Quadrajet 4bbl Carburetor from Holley is a top-quality, high-performance replacement carburetor that delivers improved fuel efficiency, increased horsepower, and smoother engine performance. With its classic Quadrajet design, advanced metering capabilities, and ease of installation, it is an excellent choice for any Buick enthusiast looking to upgrade their engine.

Pros and Cons of buying a Rochester 6G72 Series 4bbl Carburetor (Holley 29240MD, applicable to Buick Quadrajet)

The Rochester 6G72 Series 4bbl carburetor, also known as the Holley 29240MD, is a popular choice among classic car enthusiasts and muscle car owners for its ability to provide excellent fuel delivery and performance. This article aims to discuss the pros and cons of purchasing this particular carburetor for your Buick Quadrajet.

1. Improved Performance: The Rochester 6G72 Series 4bbl carburetor offers better fuel delivery and mixture than the original Quadrajet carburetor, leading to improved engine performance.

2. Smoother Idle: The Holley 29240MD carburetor ensures a smoother idle, making the vehicle easier to drive in traffic.

3. Fuel Efficiency: The carburetor is designed to optimize fuel efficiency, which can lead to savings at the gas pump.

4. Easy to Install: The installation process is relatively straightforward, especially for those with prior carburetor installation experience.

5. High-Performance Options: The Holley 29240MD carburetor comes with a range of performance options, allowing you to customize the fuel delivery for your specific engine setup.

1. Cost: The Holley 29240MD carburetor is more expensive than the original Quadrajet carburetor.

2. Complexity: The carburetor is more complex than the original Quadrajet, which may make it more difficult to tune and maintain.

3. Potential for Leaks: The installation process and the complexity of the carburetor may increase the likelihood of leaks.

4. Requires Adaptation: The Holley 29240MD may require some adaptation to the existing fuel system, including the need for an electric choke and a fuel pressure regulator.

The Rochester 6G72 Series 4bbl carburetor (Holley 29240MD) offers significant improvements in performance, fuel efficiency, and idle smoothness compared to the original Quadrajet carburetor. However, its complexity, cost, and potential for leaks are important considerations before making a purchase. Ultimately, if you're looking for improved performance and are willing to invest the time and resources into its installation and maintenance, the Holley 29240MD carburetor is an excellent choice for your Buick Quadrajet.

If you're considering purchasing a Rochester 6G72 Series 4bbl carburetor (Holley 29240MD) for your Buick Quadrajet, we recommend thoroughly researching the installation process and familiarizing yourself with the specific requirements for your engine setup. Additionally, consider consulting a professional mechanic or carburetor specialist for advice and assistance in the installation process. By taking the time to properly prepare and install the carburetor, you'll be rewarded with improved performance, fuel efficiency, and driving enjoyment.

Details:

Holley Reman Part Number: 64-7231. Has not been installed since Holley Reman. Sold as shown in pictures. For Sale: Rochester Quadrajet 4BBL Carburetor Remanufactured by Holley.

GM Part Number: 29240MD 0229.

part #: 647231 prices

• $199.99-$359.00

specifications carbcoon:

• for makes: Buick, Rochester
• brand: Rochester
• mpn: 64-7231
• type: Carburetor
• oe/oem part number: 29240md

seller carbcoon:

• rating: 100.0%
• # reviews: 1198
• city: Marshfield, Missouri

returns carbcoon:

• policy: No Returns

shipping carbcoon:

• service: USPS Ground Advantage, FedEx 2Day, FedEx Standard Overnight
• cost: $19.95
• transit: 3-8 Days
• carrier: USPS, FedEx
• type: Calculated
• class: Standard, Expedited, One-day

general carbcoon:

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

payments carbcoon:

• cash
• credit card: Diners-club
• wallet: Apple-pay
• other

offer carbcoon:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: July 7, 2025
• availability: In Stock
• best offers: True

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