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Buick Header Flanges

Our American made Buick header flanges are precision CNC laser jet cut from 3/8” stainless steel or 1018 cold rolled steel.
Stainless Header Mfg., Inc. offers the finest in CNC laser cut header flanges. While most header flanges are made from 1/4" or 5/16" material, our are precision CNC laser cut header flanges are cut from from 3/8" material. We offer our flanges in 304 stainless steel or 1018 cold rolled steel. The heavier material we use to fabricate our flanges greatly reduce the warping problems seen in other lighter flanges. These header flanges are U.S. made. Make sure to ask about custom header flanges.

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Buick Nailhead Mild Steel Header Flange
Buick Nailhead Header Flange
Our Price: $22.95

This precision laser cut Small Block Chevy header flange is cut from 3/8" thick 1018 cold rolled steel, our header flanges are manufactured in the U.S. These Buick Nailhead header flanges are sold as a single flange, requires 2 flanges per head.
Port Size: 1.573"

Preformed flange stubs are 2"-3" long, and have one end perfectly formed to the port shape of the flange using the appropriate tubing size for that port. This can drastically decrease overall build time. If you have questions on sizing or other options, talk with one of our techs for more information.

We carry over 250 different header flange designs, so if you don't see the flange your looking for, talk with one of our tech reps about custom header flange cutting.

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Buick V-6 "Fireball" Mild Steel Header Flange
Buick V-6 "Fireball" Mild Steel Header Flange
Our Price: $34.95

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 V-6 Fireball engine made by Buick in 195, 225, and 231 cubic inch blocks from 1962-1981.
Port Size: 1 .551"
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Buick 455 Stage III GSX Mild Steel Header Flange
Buick 455 Stage III GSX Mild Steel Header Flange
Our Price: $34.95

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 Stage III and Stage IV V-8 engine made by Buick specially for the GSX in 1970.
Port Size: 2.015"
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Buick 455 Mild Steel Header Flange
Buick 455 Mild Steel Header Flange
Our Price: $34.95

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 Buick 455 c.i. engine.
Port Size: 1.904"
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