Patriot Exhaust H7871 Header Flange Kit for Big Block Ford, 5/16-Inch Steel Oval Port, Pair

The Patriot Exhaust H7871 Header Flange Kit is designed for Big Block Ford applications requiring a strong, reliable connection between the header and cylinder head. Each flange is manufactured from durable steel and finished in a natural surface that is ready for installation, coating, or finishing as needed. The pair configuration provides the components required for a matched installation on both sides of the engine.
The 5/16-inch-thick construction helps provide dependable support for header tubes while resisting distortion under typical engine operating conditions. The oval port design is engineered for compatibility with headers using a 1.57 x 2.25-inch port opening, helping promote proper alignment during fabrication or replacement work. The flange profile is well suited for custom header projects, repairs, and performance exhaust system installations on Big Block Ford engines.
Designed with practical fabrication needs in mind, the Patriot Exhaust H7871 offers a solid foundation for building or restoring a custom header assembly. Its steel construction provides durability for workshop and race-oriented applications, while the clean, natural finish allows installers to select the final treatment best suited to their project. Confirm engine and header compatibility before installation to ensure the port pattern and application requirements match.
Feature: Brand: Patriot Exhaust
Feature: Part number: H7871
Feature: Application: Big Block Ford engines
Feature: Quantity: Pair
Feature: Material: Steel
Feature: Finish: Natural
Feature: Thickness: 5/16 inch
Feature: Port shape: Oval
Feature: Port opening: 1.57 x 2.25 inches

Features:

• Designed for Big Block Ford header applications

• Includes a matched pair of header flanges

• Made from durable steel for reliable fabrication and installation

• 5/16-inch-thick construction supports header tube alignment

• Oval port design fits a 1.57 x 2.25-inch opening

• Natural finish is suitable for customization, coating, or installation