This precision laser cut Big Block Chevy Square Port header flange is cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Big Block Chevy Square Port head.
Port Size: 2.094"
We carry over 250 different header flange designs, so if you don't see the flange your looking for, talk with one of our tech reps about custom header flange cutting.
Flanges Sold Separately
If you would rather purchase a pair of flanges with stubs already formed and welded in for you, try checking out out flange kits by clicking on the link below. More kits are being added all the time, so keep an eye out or call and ask one of our specialists for information on a flange kit that may not yet be on the site.
Big Block Chevrolet Square Port Flange Kit
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