1. Carburetor Parts On Sale
  2. sku: 5801976001644781
  3. PERFECT FD-49B

PERFECT PARTS FD-49B Venturi Valve Diaphragm Carbs 2BBL 255

fits model: 302, 351. make: Ford.

Fd-49b Perfect Parts Fd49b Venturi Valve Diaphragm For 2bbl Carbs On Ford 255 302 351

( Brand: Perfect Parts ), ( Part Type: Valve ), ( Manufacturer Part Number: FD-49B )

Review PERFECT PARTS Fd49b Venturi Valve Diaphragm Carbs On Ford 255 fits 302 351

The FD-49B Venturi Valve Diaphragm is a crucial component for 2-barrel carburetors used in Ford engines, specifically those with the model numbers 255, 302, and 351. This replacement part is designed to ensure optimal fuel delivery and maintain the overall performance of your engine.

The diaphragm is made from high-quality rubber material that is resilient, durable, and capable of withstanding the rigors of regular use. Its unique design allows it to create a vacuum that draws fuel from the carburetor bowl into the venturi, which is then metered and mixed with air before being delivered to the engine's combustion chamber.

The FD-49B Venturi Valve Diaphragm features a flat, rectangular shape that is specifically engineered to fit securely within the venturi assembly of 2-barrel Ford carburetors. Its smooth, contoured edges ensure a snug fit and minimize fuel leaks, while its robust design helps prevent tearing or other forms of damage.

This replacement part is also easy to install, making it an excellent choice for DIY enthusiasts and professional mechanics alike. Simply remove the old diaphragm, clean the venturi assembly, and install the new FD-49B Venturi Valve Diaphragm, ensuring a proper fit and alignment.

In summary, the FD-49B Venturi Valve Diaphragm is an essential upgrade for any Ford 2-barrel carburetor, allowing for improved fuel delivery and enhanced engine performance. Its high-quality materials, robust design, and easy installation make it a must-have for anyone seeking to maintain or restore their Ford engine.

Pros and Cons of Buying a FD-49B/FD49B Venturi Valve Diaphragm for 2bbl Carbs (Ford 255, 302, 351)

Introduction:

The FD-49B and FD49B venturi valve diaphragms are aftermarket parts designed to improve the performance of 2-barrel carburetors, specifically those used in Ford engines such as the 255, 302, and 351. These diaphragms are known for their high-performance capabilities, but it's essential to consider both the advantages and disadvantages before making a purchase.

Pros:

1. Improved Air/Fuel Mixture: The FD-49B and FD49B venturi valve diaphragms offer better vacuum control, which results in a more consistent air/fuel mixture. This can lead to improved engine performance, increased power, and better fuel efficiency.

2. Customizable: These diaphragms are available in various sizes, allowing users to customize their carburetor setup for their specific engine and performance goals.

3. Durability: The FD-49B and FD49B venturi valve diaphragms are made from high-quality materials and are designed to withstand the rigors of high-performance driving.

4. Easy Installation: The installation process for these diaphragms is generally straightforward and can be completed with common hand tools.

Cons:

1. Cost: The FD-49B and FD49B venturi valve diaphragms can be more expensive than OEM parts. However, the performance improvements may justify the additional cost for some enthusiasts.

2. Requires Tuning: Installing these diaphragms may require some additional tuning to ensure proper engine performance. This can involve adjusting the carburetor's idle mixture and other settings.

3. Potential Compatibility Issues: Ensure that the specific FD-49B or FD49B diaphragm you choose is compatible with your Ford engine and 2-barrel carburetor before making a purchase.

Conclusion:

The FD-49B and FD49B venturi valve diaphragms offer several advantages for enhancing the performance of 2-barrel carburetors used in Ford engines. While there are some potential downsides, such as cost and the need for tuning, the performance improvements may justify the investment for those seeking to maximize the potential of their Ford engine.

Recommendation:

If you're looking to improve the performance of your Ford engine with a 2-barrel carburetor, consider the FD-49B or FD49B venturi valve diaphragm as an option. However, make sure to choose the correct size for your specific engine and carburetor, and be prepared for any necessary tuning. Always consult with a professional mechanic or carburetor specialist if you have any doubts or concerns about the installation process.

part # fd49b prices

  • $11.98-$200.00

specifications carbcaddie:

  • for models: 302, 351
  • for makes: Ford
  • brand: Perfect Parts
  • part type: Valve
  • manufacturer part number: FD-49B

offer carbcaddie:

  • sold: 0
  • quantity: 5
  • started: July 28, 2025
  • availability: In Stock
  • options: Ship-to-home

payments carbcaddie:

  • other
  • credit card: Diners-club
  • wallet: Paypal

general carbcaddie:

  • condition: New other see details
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts

shipping carbcaddie:

  • service: USPS Ground Advantage
  • type: Fixed
  • cost: $0.00
  • carrier: USPS
  • transit: 3-8 Days
  • class: Standard

returns carbcaddie:

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

seller carbcaddie:

  • rating: 99.3%
  • # reviews: 239570
for models: 302, 351, for makes: ford, part type: valve,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, sku: 5801976001644781,

Perfect Parts FD-49B Is Similar To:

carbcaddie logo
5 offers $11.98–$200.00 USD
  • Offer #1: $11.98 price + free delivery = $11.98* total. Ford LTD Crown Victoria 1983 - 1985. Ford EXP 1983 - 1985.FREE SHIPPING
  • Offer #2: $200.00 price + $10.00 delivery = $210.00* total. Up to the winning bidder to clean the tin.it is empty.will have smell dents mostly under the word protecion and a small dent near the bottom rim.small dent under the word compound This product is a rare, vintage hot rod accessory that is perfect for sealing oil tins and gas cans.+$10.00 shipping
  • Offer #3: $11.99 price + free delivery = $11.99* total. If any manufacturer warranty exists, it is between you and them. Perfect Circle part number 211-2348.FREE SHIPPING
  • Offer #4: $35.00 price + $12.00 delivery = $47.00* total. You be the judge on that. For sale are some boxes of vintage piston rings The one box shows to be for late 30's Chevrolet 216.+$12.00 shipping
  • Offer #5: $177.17 price + $7.77 delivery = $184.94* total. 1 EMPTY CAN as shown. Scratches scrapes gouges dents dings dirt grime goo grease stains rust corrosion paint loss paint fade.+$7.77 shipping