Stainless Headers Mfg, Inc. - Mild Steel Header Flanges

Header Flanges - Mild Steel Header Flanges

Our American made mild steel header flanges are precision laser cut from 0.375" 1018 cold rolled steel to our exacting specifications. We carry over 400 different flange designs. Many of the popular models come in several different primary tube port sizes. They come pre-surfaced and are ready for your header building project. If you don't see the flange you're looking for, talk with one of our exhaust specialists about custom header flange cutting.

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Mild Steel Header Flanges Featured Products

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Items 1-50 of 184
Description: 18 Degree Small Block Chevy Mild Steel Header Flange
Item #: SHM-2518-MSHF
Condition: New
Price: $39.95

Description: AMC 258 Straight-6 Mild Steel Header Flange
Item #: SHM-6240-MSHF1
Condition: New
Price: $69.95

AMC V8, 360, 390, 401
Description: For Rectangle/Square Port AMC V8 Cylinder Heads
Item #: SHM-5429-MS
Condition: New
Price: $39.95

Description: AMC AMX/Javelin Mild Steel Header Flange
Item #: SHM-5430-MS
Condition: New
Price: $39.95

Description: Aston Martin 6.0L V-12 Mild Steel Header Flange
Item #: SHM-6230-MSHF
Condition: New
Price: $34.95

Description: Aston Martin V-8 Mild Steel Header Flange
Item #: SHM-6231-MS
Condition: New
Price: $39.95

Description: Audi 4.2L RS6 Mild Steel Header Flange
Item #: SHM-6228-MSHF
Condition: New
Price: $39.95
Qty:

Description: Audi A4 2.8L DOHC Mild Steel Header Flange
Item #: SHM-6227-MSHF
Condition: New
Price: $39.95
Qty:

Description: Big Block Chevy 481x Mild Steel Header Flange
Item #: SHM-6235-MSHF
Condition: New
Price: $39.95

Description: Big Block Chevy 5.0" Bore Spacing Mild Steel Header Flange
Item #: SHM-2551-MSHF
Condition: New
Price: $39.95

Description: Big Block Chevy 5.3" Bore Space Mild Steel Header Flange
Item #: SHM-2553REV-MSHF
Condition: New
Price: $39.95

Description: Big Block Chevy D-Port Mild Steel Header Flange
Item #: SHM-2522-MSHF
Condition: New
Price: $39.95

Description: Big Block Chevy Mild Steel Header Flange
Item #: SHM-1490-MSHF
Condition: New
Price: $39.95

Description: Big Block Chevy Single Header Flange
Item #: SHM-1490S-MSHF
Condition: New
Price: $16.95

Description: Big Block Chevy Sonny's 5.3" Bore Space Mild SteelHeader Flange
Item #: SHM-2642-MSHF
Condition: New
Price: $39.95
Qty:

Description: Big Block Chevy Square Port Mild Steel Header Flange
Item #: SHM-2520-MSHF
Condition: New
Price: $39.95

Description: Big Block Ford 429/460 Mild Steel Header Flange
Item #: SHM-3563-MSHF
Condition: New
Price: $39.95

Description: Big Block Ford A460 Mild Steel Header Flange
Item #: SHM-3565-MSHF
Condition: New
Price: $39.95

Description: Big Block Mopar (383-440) Large Port Mild Steel Header Flange
Item #: SHM-4512-MSHF
Condition: New
Price: $39.95

Description: Big Block Mopar (383-440) Mild Steel Header Flange
Item #: SHM-4511-MSHF
Condition: New
Price: $39.95

Description: Big Block Mopar (383-440) Raised Port Mild Steel Header Flange
Item #: SHM-4512a-MSHF
Condition: New
Price: $39.95

Description: Big Block Mopar (383-440) Round Port Mild Steel Header Flange
Item #: SHM-4513a-MSHF
Condition: New
Price: $39.95

Description: BMW M30 Mild Steel Header Flange
Item #: SHM-6188-MSHF
Condition: New
Price: $59.95

Description: BMW S50 B30 Mild Steel Header Flange
Item #: SHM-6189-MSHF
Condition: New
Price: $59.95

Description: BMW S54 Single Port Mild Steel Header Flange
Item #: SHM-6189b-MSHF
Condition: New
Price: $16.95
Qty:

Description: Brad Anderson BA 5 Square Port Mild Steel Header Flange
Item #: SHM-6238A-MSHF
Condition: New
Price: $39.95

Description: Brad Anderson BA 6x/8x Mild Steel Header Flange
Item #: SHM-6238-MSHF
Condition: New
Price: $39.95

Description: Buick "Fireball" V-6 Mild Steel Header Flange
Item #: SHM-6196-MSHF
Condition: New
Price: $34.95

Description: Buick 455 Mild Steel Header Flange
Item #: SHM-6197D-MSHF
Condition: New
Price: $39.95

Description: Buick 455 Stage III GSX Mild Steel Header Flange
Item #: SHM-6197-MSHF
Condition: New
Price: $39.95
Qty:

Description: Buick Nailhead Mild Steel Header Flange
Item #: SHM-2540-MSHF
Condition: New
Price: $24.95

Description: Buick Series II 3800 V-6 Mild Steel Header Flange
Item #: SHM-6199-MSHF
Condition: New
Price: $34.95

NEW!
Description: For the OHV Cadillac V8 Engines from 1959-1967
Item #: SHM-6193a-MSHF
Condition: New
Price: $39.95

Description: Cadillac 500 Mild Steel Header Flange
Item #: SHM-6192-MSHF
Condition: New
Price: $39.95

Description: Chevrolet 2.0L-2.4L EcoTec Mild Steel Header Flange
Item #: SHM-2647-MSHF
Condition: New
Price: $39.95

Description: Chevrolet 2.3L Quad-4 Mild Steel Header Flange
Item #: SHM-2646-MSHF
Condition: New
Price: $39.95

Description: Chevrolet 292 Straight 6 Mild Steel Header Flange
Item #: SHM-2653-MSHF
Condition: New
Price: $59.95
Qty:

Description: Chevrolet 3.4L Mild Steel Header Flange
Item #: SHM-2635-MSHF
Condition: New
Price: $34.95

Chevrolet Racing, 18 Degree Heads
Description: For Chevrolet Racing 18 Degree V6 Cylinder Heads. Fits Fel-Pro 1463 Header Gaskets
Item #: SHM-2504-MSHF
Condition: New
Price: $34.95

Description: Chevrolet 348/409 Mild Steel Header Flange
Item #: SHM-2643-MSHF
Condition: New
Price: $39.95

Description: Chevrolet 4.3L Vortec Mild Steel Header Flange
Item #: SHM-2505-MSHF
Condition: New
Price: $34.95

Description: Chevrolet 6.2L LT1 Mild Steel Header Flange
Item #: SHM-2675-MSHF
Condition: New
Price: $39.95

Description: Chevrolet LL8 Vortec 4200 "Atlas" Mild Steel Header Flange
Item #: SHM-2652-MSHF
Condition: New
Price: $59.95

Description: Chevrolet MBR 526 Hemi Head Mild Steel Header Flange
Item #: SHM-2639-MSHF
Condition: New
Price: $39.95
Qty:

Description: Chevrolet S10 2.2L Mild Steel Header Flange
Item #: SHM-2684-MSHF
Condition: New
Price: $39.95
Qty:

Description: Chevrolet SB2 Mild Steel Header Flange
Item #: SHM-2565-MSHF
Condition: New
Price: $39.95

Description: Chevrolet Vortec 2900 Mild Steel Header Flange
Item #: SHM-2626-MSHF
Condition: New
Price: $39.95

Description: Chevrolet Vortec 3500 5-Cyl Mild Steel Header Flange
Item #: SHM-2627-MSHF
Condition: New
Price: $47.95

Description: Chevy 4.3L EcoTec3 LV3 Mild Steel Header Flange
Item #: SHM-2507-MSHF
Condition: New
Price: $34.95

Description: Chevy 4.3L Vortec 4300 Mild Steel Header Flange
Item #: SHM-2506-MSHF
Condition: New
Price: $34.95

Items 1-50 of 184

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More About Mild Steel Header Flanges

Our American made mild steel header flanges are precision laser cut from 0.375" 1018 cold rolled steel to our exacting specifications. We carry over 400 different flange designs. Many of the popular models come in several different primary tube port sizes. They come pre-surfaced and are ready for your header building project. If you don't see the flange you're looking for, talk with one of our exhaust specialists about custom header flange cutting.