Small Block Chevy Close-Port Stahl Pattern Mild Steel Header Flange

Precision laser cut form 3/8" thick 304 Steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for small block Chevy heads drilled for the Stahl bolt pattern. Several aftermarket heads may also utilize the Stahl bolt pattern.

Port Size: 1 3/4, 1 7/8, 2", 2 1/8", and 2 1/4" port sizes available.

We carry over 250 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.