The Kooks 23-degree small block Chevrolet Stahl header flange is 5/16in thick mild steel with a port sized for 1-7/8in primaries and the Stahl 7-bolt pattern. Sold individually, this flange is intended for 23-degree SBC header builds and provides a consistent bolt pattern and port for fabricators and builders. It is sold per piece for banks and header projects.
Kooks SB Chevy 2in Steel 23deg SBC Stahl Flange (Bank)