Patriot Exhaust H7863 Header Flange Kit for Small Block Chevy, 3/8-Inch Thick, Oval Port, Pair

The Patriot Exhaust H7863 Header Flange Kit is designed for Small Block Chevy applications requiring a reliable connection between the cylinder heads and headers. Each flange is manufactured from steel with a natural finish and features an oval port pattern suitable for compatible header installations. This kit includes a pair of header flanges for use during new header fabrication, replacement, or performance exhaust system upgrades.
The flanges are engineered with a 3/8-inch thickness to provide a sturdy mounting surface and help maintain proper header alignment. Their small block Chevy fitment makes them a practical choice for builders, restorers, and enthusiasts working on compatible Chevrolet engine combinations. Verify cylinder head, header, and port compatibility before installation to ensure the flange matches your specific application.
Designed for dependable exhaust-system assembly, the Patriot Exhaust H7863 supports a secure sealing surface when used with the appropriate gaskets, fasteners, and installation procedures. The natural steel finish is well suited for fabrication and customization, while the oval port design accommodates compatible Small Block Chevy header configurations. This pair offers a convenient solution for replacing worn flanges or building a custom header system.

Features:

• Brand: Patriot Exhaust

• Part Number: H7863

• Application: Small Block Chevy

• Product Type: Header flange kit

• Material: Steel

• Finish: Natural

• Thickness: 3/8 inch

• Port Shape: Oval

• Port Size: 1.5 x 1.84 inches

• Quantity: Pair