Listed is a pair of 3/8" Thick 304 Stainless Header Flanges For: Small Block Ford 302/351w Z304/AFR style Heads. Dual Bolt Pattern. These flanges have a 2" AND 3" bolt pattern. Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S. and are machine surfaced.
