Pro Series Stainless Header Flange Kits- Chevy LS1/6 Round Port

Each Header Flange Kit comes with (2) 3/8" thick American Made 304 Stainless Steel flanges, and (8) stubs TIG welded and machine surfaced onto the flange.

Each flange has a 2" long stub welded on the mating surface and stitch welded on the exterior for bolt clearance. The flange is then surfaced for a superior gasket seal.

Made from an American made 304 stainless and purge tig welded, these flanges kits will get your header project off to a great start.

Port Size: 1 5/8", 1 3/4", 1 7/8", 2", or 2 1/8" Available

Stub Sizes Available: 1 5/8", 1 3/4", 1 7/8", 2", or 2 1/8" Available

Specify tube diameter when ordering. (We carry over 300 flange patterns that we configure as a set with stubs) Depending on the tube size combination, the tube stub may go through the flange port or sit on top of the flange-call for details.