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Oldsmobile Header Flanges

Our American made Oldsmobile 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. Make sure to ask about custom header flanges.

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Oldsmobile 455 Mild Steel Header Flange
Oldsmobile 455 Mild Steel Header Flange
Our Price: $39.95

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 Oldsmobile 455 engines. This flange has a rectangle port with 1.550" by 1.925" dimensions. more info
Oldsmobile 303 "Rocket 88" Stainless Header Flange
Oldsmobile 303 "Rocket 88" Stainless Header Flange
Our Price: $39.95

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 Oldsmobile 303, "Rocket 88" engines of the 1950's.
Port Size: 1.670" more info
Oldsmobile 455 Mild Steel Header Flange- 2 1/4" Port
Oldsmobile 455 Mild Steel Header Flange- 2 1/4" Port
Our Price: $39.95

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 Oldsmobile 455 engines.
Port Size: 2.274"
 more info