BuiltWithNOF
Header Flanges

Aluminum Header Flanges

Big block Chevy Headers on a Big Block Ford

As you can see in the picture on the left, the exhaust flange has been cut at an angle. The Ford head is 5 degrees. The Chevy head is 12 degrees. So, these plates were engineered at 7 degrees.   The Chevy port is 2.1 tall by 2.050 wide. The Ford side is 2.0 tall by 1.33 wide. (8) mounting bolts are included. The plate height has been raised so you can port to match SCJ heads if you like to do so. Part No. EP-26 $329.70

Back side of plate

Big Block Chevy Header Flanges to make them D Port

EP-25 consists of (2) 1/2 Billet aluminum plates and (8) castings to place in the floor of your exhaust ports. Mounting bolts and hardware for this is a kit! No welding required.               Part No. EP-25 $347.05