
The Story
Highlights
Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with gaskets and header bolts.
Our 3/8" Header flange kits have heavy duty 1100° F gaskets.
- For Chevy Small Block (265-400) Engines
- For 1 5/8" Tube Diameters, select from Round or Oval port shapes
- The 1 3/4" Tube Diameter option is available only in Rectangle port shape

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Highlights
Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with gaskets and header bolts.
Our 3/8" Header flange kits have heavy duty 1100° F gaskets.
- For Chevy Small Block (265-400) Engines
- For 1 5/8" Tube Diameters, select from Round or Oval port shapes
- The 1 3/4" Tube Diameter option is available only in Rectangle port shape












