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 H7861 Header Flange Kit Chevrolet Small Block 265-400 Stainless Steel 1 5/8" Oval Port 5/16"
- Precision machined flanges