SPEEDWAY MOTORS 41811139 Header Flange Block 1-3/4 289-351W

( Brand: Speedway Motors ), ( Type: Exhaust Flanges ), ( Material: Steel ), ( Manufacturer Part Number: 41811139 ), ( Finish: Natural ), ( Item Height: 3.300 ), ( Item Length: 20.80 ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS Header Flange 1-3/4 Inch Small Block Ford

The Speedway 41811139 Header Flange is a crucial automotive component designed specifically for Ford vehicles equipped with 289-351 cubic inch engines. This header flange is a 1-3/4 inch block, which makes it an essential upgrade or replacement for those looking to enhance their engine's performance or restore a classic Ford vehicle.

Manufactured by Speedway Motors, a trusted name in the automotive aftermarket industry, this header flange is designed to provide a secure connection between the exhaust header and the exhaust system. The flange features a robust, thick design, ensuring optimal strength and durability.

The 1-3/4 inch size of the header flange is suitable for a wide range of Ford engines, including those found in iconic models like the Mustang and the Fairlane. This makes it a versatile option for Ford enthusiasts and restoration projects.

The header flange is engineered to meet or exceed OEM specifications, ensuring a precise fit and reliable performance. Its smooth, polished finish not only contributes to its durability but also adds an attractive touch to the engine compartment.

The Speedway 41811139 Header Flange is made from high-quality materials that can withstand the extreme temperatures and pressures associated with high-performance exhaust systems. Its robust design and precise engineering make it an excellent choice for those seeking to optimize their engine's performance or restore their Ford classic to its former glory.

In summary, the Speedway 41811139 Header Flange is a vital automotive component for Ford vehicles with 289-351 cubic inch engines. Its 1-3/4 inch block design provides versatility, while its robust, thick construction ensures optimal strength and durability. This header flange is engineered to meet or exceed OEM specifications and is made from high-quality materials that can withstand the demands of high-performance exhaust systems.

Pros and Cons of Buying a Speedway 41811139 Header Flange for Ford 289-351w Engines

The Speedway 41811139 Header Flange is a popular choice among Ford 289-351w engine owners for building high-performance exhaust systems. Before making a purchase, it's essential to consider the potential advantages and disadvantages.

1. Manufactured from high-quality materials: This header flange is constructed from ductile iron, ensuring durability and strength.

2. Precise fitment: Designed specifically for Ford 289-351w engines, ensuring a perfect fit.

3. Enhanced engine performance: A well-designed header flange can improve engine performance by reducing exhaust backpressure and optimizing exhaust gas flow.

4. Improved throttle response: By reducing exhaust backpressure, the engine can respond more quickly to throttle input.

5. Better fuel economy: Reduced exhaust backpressure can lead to improved fuel economy.

1. Cost: The Speedway 41811139 Header Flange is a premium product, and the cost may be higher than some other options.

2. Installation complexity: Installing a header flange requires some mechanical knowledge and tools, which may be a deterrent for some.

3. Weight: The use of ductile iron material makes this header flange heavier than some alternatives, which could impact handling in race applications.

4. Limited availability: This header flange may not be readily available at local auto parts stores and might need to be ordered online.

The Speedway 41811139 Header Flange offers numerous advantages for Ford 289-351w engine owners, including improved performance, enhanced throttle response, and potential fuel economy gains. However, the higher cost, installation complexity, and weight may be drawbacks for some. Ultimately, the decision to purchase this header flange depends on your budget, mechanical skills, and performance goals.

If you're serious about maximizing the performance of your Ford 289-351w engine and have the necessary skills and resources to install the header flange, the Speedway 41811139 Header Flange is an excellent investment. However, if you're on a tight budget or lack the necessary installation expertise, you may want to consider alternative options or seeking professional assistance.

part # 41811139 prices

• $161.99-$269.99

specifications clampcluch:

• for makes: Ford
• brand: Speedway Motors
• type: Exhaust Flanges
• material: Steel
• manufacturer part number: 41811139
• finish: Natural
• item height: 3.300
• item length: 20.80
• california prop 65 warning: True

offer clampcluch:

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

returns clampcluch:

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

shipping clampcluch:

• cost: $13.99
• type: Fixed
• class: Economy, Expedited
• service: Economy, Expedited
• transit: 4-4 Days

general clampcluch:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Clamps, Flanges, Hangers Hardware

payments clampcluch:

• credit card: Diners-club
• other
• wallet: Google-pay

seller clampcluch:

• # reviews: 351951
• rating: 99.7%

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