Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S.A. and are machine surfaced. These header flanges are specifically made for the 1st, 2nd, and 3rd Gen Dodge Viper 8.0L and 8.3L engines. This flange fits engines used in production years 1992-2007, for the Dodge Viper.
Port Size: 1.749"