FORD D84E-DB Carburetor 2BBL. A/t

( Brand: Ford ), ( Type: Carburetor ), ( Manufacturer Warranty: Yes ), ( Fitment Type: Direct Replacement ), ( Manufacturer Part Number: D84E-DB ), ( Mounting Hardware Included: No ), ( Material: Alloy ), ( Country Of Origin: United States )

Review FORD Mercury 2bbl. Carburetor Db Inch A/t Cal fits 302 1978

The Ford D84E-DB Mercury 2-barrel carburetor is a classic automotive component that was commonly used in various Ford and Mercury vehicles during the late 1970s, including those equipped with the 302 cubic inch V8 engine and automatic transmission. This carburetor is a crucial part of the vehicle's fuel delivery system, ensuring an optimal air-fuel mixture for efficient combustion and smooth engine performance.

The D84E-DB carburetor features a 2-barrel design, meaning it has two separate barrels or throats, each feeding a corresponding cylinder bank. This design provides improved idle stability and better response during acceleration compared to a single-barrel carburetor. The barrels are topped with 750 CFM (cubic feet per minute) venturi throats, which allow for a sufficient airflow rate to meet the engine's demands.

The carburetor housing is made of durable cast aluminum, which not only adds to the overall strength and rigidity but also helps to dissipate heat generated during the combustion process. The housing is equipped with various ports and passages to facilitate proper fuel flow and air mixing. For instance, the primary and secondary fuel metering jets are strategically placed to ensure an accurate fuel mixture at various engine speeds.

The D84E-DB carburetor comes with an electric choke system, which ensures a quick and efficient engine start in cold conditions. The choke mechanism is controlled by a vacuum-operated switch on the distributor, which engages the choke when the engine is cranking and disengages it when the engine reaches operating temperature.

The carburetor also includes an automatic transmission cooler line connection, allowing the engine cooling system to circulate fluid through the transmission cooler, preventing excessive temperatures and ensuring the longevity of the automatic transmission.

The D84E-DB carburetor comes with various adjustments to fine-tune the engine's performance according to individual preferences and driving conditions. These adjustments include the idle mixture screws, main jet needle and seat, power valve, and secondary idle jet. Proper adjustment of these components can help improve fuel economy, engine power, and overall drivability.

The Ford D84E-DB Mercury 2-barrel carburetor is a popular choice among enthusiasts and restorers due to its historical significance and proven performance. If you're looking to restore a classic Ford or Mercury vehicle from the 1970s, this carburetor is an excellent starting point to ensure your engine runs smoothly and efficiently.

The Ford D84E-DB Mercury 2-barrel carburetor for the 1978 302 automatic transmission engine is a common choice for those restoring or working on vehicles of that era. Here are some pros and cons to consider before making a purchase.

1. Availability: These carburetors are widely available from various suppliers, both new and rebuilt, making it relatively easy to find one that fits your needs.

2. Cost-effective: Compared to more complex fuel injection systems, carburetors are generally less expensive to purchase and install.

3. Familiarity: Carburetors have been used in automobiles for decades, making them a familiar technology for many mechanics and hobbyists.

4. Adjustability: With a carburetor, you can easily fine-tune the air-fuel mixture for optimal performance and fuel efficiency.

1. Complexity: Carburetors require regular maintenance, including adjustments to the idle mixture, air-fuel ratio, and choke system. This can be time-consuming and may require specialized tools.

2. Emissions: Carburetors can produce higher emissions compared to fuel injection systems due to incomplete combustion and the potential for rich mixtures.

3. Cold starting: Carburetors can be more challenging to start in cold weather due to the thickening of fuel and the need for proper choke adjustment.

The Ford D84E-DB Mercury 2-barrel carburetor for the 1978 302 automatic transmission engine offers both advantages and disadvantages. Its availability, cost-effectiveness, and adjustability make it an attractive choice for those working on older vehicles. However, its complexity, potential for higher emissions, and challenges with cold starting are important considerations. Ultimately, the decision to purchase this carburetor depends on your specific needs, budget, and expertise. If you're comfortable with the maintenance requirements and understand the trade-offs, this carburetor could be a good fit for your project. If you prefer a more modern, emissions-friendly, and easier-to-maintain fuel injection system, you may want to explore other options.

part # d84e prices

• $176.92-$301.11

specifications carbcaddie:

• for models: 302
• for makes: Mercury, Ford
• for years: 1978
• brand: Ford
• type: Carburetor
• manufacturer warranty: Yes
• fitment type: Direct Replacement
• manufacturer part number: D84E-DB
• mounting hardware included: No
• material: Alloy
• country of origin: United States

returns carbcaddie:

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

offer carbcaddie:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 25, 2026

seller carbcaddie:

• rating: 99.5%
• # reviews: 3154

general carbcaddie:

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

payments carbcaddie:

• other
• wallet: Paypal
• credit card: Discover

shipping carbcaddie:

• service: UPS Ground
• type: Calculated
• transit: 3-7 Days
• class: Standard
• cost: $22.59
• carrier: UPS

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