Listed is a pair of 3/8" Thick 304 Stainless Header Flanges For: 23 Degree Small Block Chevy V8. Conventional Bolt Pattern. D-Port heads, Gen I & II LT-1 Heads, & Fast Burn type heads. Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S. and are machine surfaced.
