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 H7872 Header Flange Kit Chevrolet 348-409 1 3/4" SAP 5/16"
- Precision machined flanges