Buick Series II 3800 V-6 Mild Steel Header Flange

Precision laser cut from 3/8" thick Steel, our header flanges are manufactured in the U.S.A. and are machine surface. These header flanges are designed for the Buick 3800 Series II V-6.

Port Size: 1 1/2", 1 5/8", and 1 3/4" round ports available.

We carry over 300 different flange designs, if you don't see something you need, or for any questions, give one of our specialists a call at 1-800-290-3920. Custom flange designs and one-off laser cutting on header flanges is also available.