The Kooks 23-degree small block Chevrolet Stahl header flange is 3/8in thick 304 stainless steel with a 2in port for primaries and the Stahl 7-bolt pattern. Sold individually, it suits header fabrication and replacement where a 23-degree exit angle and 7-bolt Stahl pattern are required, reflecting Kooks' U.S. manufacturing quality.
Kooks SB Chevy 2in SS 23deg SBChevy Stahl Flange (Bank)