Quote:

Most header leaks are fault of the headers.

Remove the header and inspect the gasket. Find the leak and study the sealing surface of the header.

5/16" flanges also make this a losing battle.




Tig a bead around the ports on the flange and then mill them, leaving a lip for the flange to seal into the gasket. You can mill them with a Belt Sander......


66 Dart GT, 402 11.18:109 Best 63 1/2 Galaxie 500XL 406 4Speed 13.20:103 Best 2000 Ram 2005 Durango Hemi.