Patriot Exhaust's machined header flange kits are available for many popular engine families. Header flange kits include gaskets and header bolts in most applications. Manufactured from 5/16" thick material.
Product Features:- Patriot Exhaust Header Flanges Ford 351, 351-400 2 barrel heads 1 3/4" Primaries 5/16" thick
- Precision machined flanges