Precision laser cut form 3/8" thick 304 Stainless Steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for spread port small block chevy heads. Many aftermarket heads also utilize the spread port small block Chevy bolt pattern.
Port Size: 1 3/4, 1 7/8, 2", 2 1/8", and 2 1/4" port sizes available.
1/2" Thick flanges available for the 1 7/8" round port. Great for turbo and blower applications, as well as nitrous motors or any other high temp racing set up.
We carry over 300 different header flange designs, so if you don't see the flange you're looking for, talk with one our tech reps about custom header flange cutting.
Flanges sold separately.
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