fits make: Rochester. year: 1980–1989.

( Brand: Autoooparts ), ( Manufacturer Part Number: APO244040 ), ( Type: Carburetor ), ( Features: Constant-vacuum ), ( Cfm: 650/750 ), ( Choke Type: Electric ), ( Manufacturer Warranty: 1 Year )
The AutoOpparts APO244040 Carburetor is a high-performance replacement part designed specifically for 1980-1989 1/2 Ton trucks with a 4.2L engine and the Rochester Quadrajet 4MV vacuum secondary system. This 4-barrel carburetor boasts impressive features that ensure optimal engine performance and fuel efficiency.
This carburetor comes with a 750CFM (cubic feet per minute) airflow rating, which is suitable for larger engines that require more fuel to generate power. Its vacuum secondary design enhances low-end torque and improves overall engine responsiveness. The 4MV system is known for its ability to provide consistent and accurate fuel delivery, making it an excellent choice for those who demand better performance from their vehicles.
The APO244040 Carburetor's construction incorporates a robust and durable design. It features a metal baseplate and a thick, chrome-plated borosilicate glass bowl. This material not only provides superior heat resistance but also ensures resistance to corrosion and wear. Furthermore, the bowl's large capacity of 2.2 gallons (8.3 liters) allows for extended fuel supply, ensuring smooth operation even under heavy loads.
The carburetor comes equipped with four 1.53-inch (39mm) diameter barrels, each having 12 fine-atomizing jets and 14 secondary jets. These jets ensure precise fuel mixture preparation and delivery to the engine, providing excellent combustion efficiency. Additionally, the carburetor features a mechanically controlled choke system, allowing for easy starting in cold weather conditions.
The APO244040 Carburetor's top is fitted with a smooth, flat surface, ensuring a perfect seal when using an air cleaner or intake manifold gasket. The carburetor's mounting and linkage points are strategically placed for a hassle-free installation process.
In conclusion, the AutoOpparts APO244040 Carburetor is a high-quality, reliable replacement part for 1980-1989 1/2 Ton trucks with a 4.2L engine and the Rochester Quadrajet 4MV vacuum secondary system. Its robust design, impressive airflow rating, and precise fuel delivery make it an excellent choice for those seeking improved engine performance and fuel efficiency.
The ROchester Quadrajet 4CV carburetor, specifically model APO244040, is a popular choice for restoring or upgrading 1980-1989 4-barrel 1904R Ford engines. This carburetor features a vacuum secondary system and a 750 CFM air flow rate. Here are some pros and cons to consider before making a purchase:
Pros:1. Improved fuel efficiency: The Quadrajet design is known for its efficient fuel delivery, which can lead to better gas mileage and reduced emissions.
2. Smooth engine performance: The vacuum secondary system allows for improved idle stability and smoother engine operation, especially at high RPMs.
3. Easy-to-tune: The Quadrajet is considered a tuneable carburetor, which means it offers a greater degree of control over engine performance, allowing for customization to specific engine conditions.
4. Durable construction: The Quadrajet is known for its robust design, which can withstand the rigors of high-performance driving and harsh environments.
Cons:1. Complexity: The Quadrajet carburetor is more complex than some other designs, which can make installation and tuning more time-consuming and challenging for some users.
2. Cost: Compared to some other carburetors, the Quadrajet can be more expensive, both in terms of initial purchase price and ongoing maintenance costs.
3. Fuel economy tradeoff: While the Quadrajet offers improved fuel efficiency compared to some other carburetors, it may not be as fuel efficient as modern fuel injection systems.
4. Potential for leaks: Like any carburetor, the Quadrajet is susceptible to fuel leaks, which can be a source of frustration and potential engine damage if not addressed promptly.
Ending Conclusion:The ROchester Quadrajet APO244040 4-barrel carburetor is a high-performance option for 1980-1989 Ford 4-cylinder engines. Its vacuum secondary system and 750 CFM air flow rate offer improved engine performance, but it comes with the complexity, cost, and potential fuel economy tradeoffs that are typical of this type of carburetor. Ultimately, the decision to purchase this carburetor depends on individual preferences, budget, and desired engine performance.
Recommendation:If you're looking for improved engine performance and are willing to invest the time and resources into installation and tuning, the ROchester Quadrajet APO244040 carburetor is a solid choice. However, if you're looking for a more cost-effective and easier-to-install option, you may want to consider other carburetor designs or even fuel injection systems.
Air correction jets:190. Venture Choke tube: 31.7mm.: Auxiliary Venture:7mm. Package Include.
Excellent Delivery. As shown in the picture. New List Item. Main jet:190.