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Chevrolet Header Flanges

Our 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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BBC Single header flange
Big Block Chevy Single Header Flange
Our Price: $14.95

This precision laser cut Big Block Chevy single header flange is cut from 3/8" thick 1018 cold rolled steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Big Block Chevy head.

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.

Flanges Sold Separately
more info
Chevy 3.4 Liter V6 Mild Steel Header Flange
Chevy 3.4 Liter V6 Header Flange
Our Price: $29.95

This precision laser cut Chevy 3.4 Liter V6 header flange is cut from 3/8" thick 1018 cold rolled steel, our header flanges are manufactured in the U.S. These header flanges are specifically made for the Chevy 3.4 Liter V6 head. more info
Chevy 4.3L V6 Mild Steel Header Flange
Chevy 4.3L V6 Header Flange
Our Price: $33.95

This precision laser cut Chevy 3.4 Liter V6 header flange is cut from 3/8" thick 1018 cold rolled steel, our header flanges are manufactured in the U.S. These header flanges are specifically made for the Chevy 3.4 Liter V6 head. more info
Small Block Chevy Header Flange- Mild Steel
Small Block Chevy Header Flange- Mild Steel
Our Price: $34.95

These Small Block Chevy precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S. and are machine surfaced. Sold separately.This flange for a small block Chevy, will accomodate a 1 5/8" primary tube. more info
Small Block Chevy LT-1 Header Flange-Mild Steel
Small Block Chevy LT-1 Header Flange-Mild Steel
Our Price: $34.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Small Block Chevy LT-1 5.7L engines. more info
18 Degree Small Block Chevy Header Flange-Mild Steel
Chevy 18 Degree Small Block Header Flange-Mild Steel
Our Price: $34.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. These header flanges are specifically made for the small block Chevy 18 degree head. more info
SB2 Header Flange-Mild Steel
SB2 Header Flange 1 7/8" Port-Mild Steel
Our Price: $34.95

These precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S. These flanges have a round 1 7/8" port dimension. They fit the Chevy SB2.2 factory head along with the following manufacturer’s models:
MBE’s SB2.2
Edelbrock Victor ROX p/n 350-777668

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.

Flanges Sold Separately

more info
Chevy LS7 LSX Header Flange
Chevy LS7 LSX D Port Header Flange
Our Price: $34.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. These header flanges are specifically made for the GM Chevy 7.0L 427ci LS7. This flange has D port and can be used with LS1, LS2, LS6, LS7, LS9, and most other LSX applications. more info
Chevy SB2 Header Flange
SB2 Header Flange 2" Port-Mild Steel
Our Price: $34.95

These precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S. These flanges have a round 2" port dimension. They fit the Chevy SB2.2 factory head along with the following manufacturer’s models:
MBE’s SB2.2
Edelbrock Victor ROX p/n 350-777668

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.

Flanges Sold Separately

more info
SBC Header Flange
Small Block Chevy Header Flange
Our Price: $34.95

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 header flanges are specifically made for the Small Block Chevy head.
Por tSize: 1.625", 1.750"
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.

Flanges Sold Separately
more info