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

Precision laser cut form 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for stock small block chevy heads. Many aftermarket heads also utilize the stock small block Chevy 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.