Stainless Works Chevrolet LS1/LS6 Round Port Header 304SS Exhaust Flanges 1-3/4in Primaries

Stainless Works is known for making well-built exhaust components. These header flanges are a prime example, designed specifically for LS1 and LS6 Chevrolet engines with round ports. If you're fabricating custom headers for these popular LS engines, having a solid flange to start with makes all the difference. These are built to handle the heat and stress that comes with performance engine builds.

Each flange is laser-cut from a heavy-duty 3/8" thick piece of 304 stainless steel. This material choice is important because it resists warping even when exposed to high exhaust temperatures, which is common in performance LS applications. The 1-3/4" primary opening is precisely cut, giving you a clean surface to weld your header tubes to. They come as a pair, so you have what you need to get your custom header project started.