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Home > Header Components > Header Flanges > Mild Steel Header Flanges

Mild Steel Header Flanges

Mild Steel 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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    4-Slot Mild Steel Cobra Kit Car Collector Flange
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    This 4-Bolt collector flange is precision laser-cut from true American made Mild Steel, and is 3/8" thick. These flanges have slot-holes for fine-tuning any header positioning your build may require. It is the perfect fit for any Cobra Kit Car application requiring a 4-bolt flange. The ports are available in 1 3/4" and 2" diameter holes to accompany those sizes of tubing.
    $44.95
    Porsche 944 Mild Steel Header Flange-Inline Bolt Pattern
    These header flanges are specifically made for the inline 4 engine used in Porsche 944s from 1982-1991.

    Port Size: 1.760"

    $44.95
    Porsche 944 Mild Steel Header Flange- Angled Bolt Pattern
    These header flanges are specifically made for the inline 4 engine used in Porsche 944s from 1982-1991.

    Port Size: 1.752"

    $44.95
    Porsche 911 Carrera 996 Mild Steel Header Flange
    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 flat-6 engine of all 996-generation Porsche 911 variants from 1999-2004.
    Port Size: 2.087"
    $44.95
    Pontiac 400/455 Ram Air V Round Port Mild Steel Header Flange

    Precision laser cut form 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for V8 Pontiac engines with a split-port Ram Air V round port head. DCI Motorsports makes a head which accompanies these flanges.

    Port Size: 2.130" Round Port

    $44.95
    Pontiac 400/455 Ram Air V Mild Steel Header Flange

    Precision laser cut form 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for V8 Pontiac engines with a split-port Ram Air V style head. DCI Motorsports makes a head which accompanies these flanges.

    Port Size: 2.188"

    $44.95
    Pontiac 400/455 Ram Air IV D-Port Mild Steel Header Flange
    These header flanges are specifically made for Ram Air IV style Pontiac V8 heads. Modeled after the 1969-1970 GTO heads, Edelbrock Performer RPM and KRE High Port heads use the same bolt pattern.

    Port Size: 1.862"

    $44.95
    Pontiac 400/455 Ram Air IV Round Port Mild Steel Header Flangeel Header Flange
    These header flanges are specifically made for Ram Air IV style Pontiac V8 heads. Modeled after the 1969-1970 GTO heads, Edelbrock Performer RPM and KRE High Port heads use the same bolt pattern.

    Port Size: 1 7/8" and 2" Round Port are available.

    $44.95
    Pontiac 400/455 D-Port Mild Steel Header Flange
    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 Pontiac 400/455 cubic inch blocks used in a wide variety of Pontiac vehicles from 1955-1976.
    Port Size:1.801"
    $44.95
    Oldsmobile 455 Mild Steel Header Flange- 2 1/4" Port
    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"
    $44.95
    Nissan RB25 Stainless Header Flange
    Precision laser cut form 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 Nissan RB25 DE/DET straight 6 engines used from 1989-1994, most notable the R32 Skyline GTR.

    Port Size: 1.571"

    $111.95
    Nissan 2.4L KA Mild Steel Header Flange
    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 Nissan 2.4L I-4 found in all KA engine-family vehicles. KA engines can be found in the 240SX, Frontier, and Xterra, each in a variety of years from 1991-2004.
    Port Size: 1.746"
    $44.95
    Nissan GT-R R35 Mild Steel Header Flange
    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 Nissan 3.8L V6 found in the R35 GT-R from 2008-current. Our flange is compatible with all R35 editions, including the NISMO, Black Edition, SPEC-V, and N-Attack
    Port Size: 1.725"
    $39.95
    Nissan 4.0L V-6 Mild Steel Header Flange
    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 Nissan 4.0L V-6 found in 2005-2008 SUV's and trucks.
    Port Size: 1.557"
    $39.95
    Mazda Miata 1.8L BP Mild Steel Header Flange

    These header flanges are specifically made for the Mazda 1.8L BP engines found in 1994-2004 Ford and Mazda passenger vehicles.

    Port Size: 1.940"

    $44.95
    Brad Anderson BA 5 Square Port Mild Steel Header Flange
    Precision laser cut from 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced.
    Port Size: 2.40"
    $44.95
    Brad Anderson BA 6/8/TA1/TA1X Mild Steel Header Flange
    Precision laser cut from 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced.
    Port Size: 2.230"
    $44.95
    Small Block Chevy 5.7L LT1 Round Port Mild Steel Header Flange
    Round Port SBC Gen II LT1 Steel Header Flange-
    Port Size: 1.630"
    $44.95
    Chevy 4.3L EcoTec3 LV3 Mild Steel Header Flange
    Precision laser cut from 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced.
    Port Size: 1 3/4" and 2" ports available
    $39.95
    Volkswagon 1.8L 16v Mild Steel Header Flange
    Precision laser cut from 3/8" thick steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the VW 1.8L 16v engine.
    $44.95
    Audi 1.8L 16v Mild Steel Header Flange
    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 Audi 1.8L 16v engine.
    $44.95
    Jaguar 4.0L V-8 Mild Steel Header Flange
    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 Jaguar 4.0L V8.
    $44.95
    Suzuki Sidekick 1.8L Mild Steel Header Flange
    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 Suzuki Sidekick 1.8L L4 engines.
    Port Size: 1.742"
    $44.95
    Mercedes C63 AMG Mild Steel Header Flange
    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 2007-2015 Mercedes C63 AMG engines.
    $44.95
    SBC Reher-Morrison/Dart 15 Degree Mild Steel Header Flange
    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 15 degree head.
    $44.95
    5.7L Hemi (Left Bank) Mild Steel Header Flange
    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 Left bank of the 5.7L Hemi engines.
    Port Size: 1.696"
    $44.95
    Volkswagon 1.8L 16v Turbo Mild Steel Header Flange
    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 VW 1.8L Turbo found on a variety of VW and Audi passenger cars from 2006-present.
    Port Size: 1.528"
    $44.95
    Subaru EG33 H6 Mild Steel Header Flange
    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 Subaru EG33 found in the 1992-1997 Subaru Alcyone SVX.
    Port Size: 1.574"
    $39.95
    Subaru EZ30R Mild Steel Header Flange
    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 Subaru EZ30R Boxer-6 found in the 1999-2009 Outback and Legacy.
    Port Size: 2.577"
    $39.95
    Subaru EJ257 Mild Steel Header Flange
    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 Subaru EJ257 DOHC 16v boxer-4 engine found in 2004-present Impreza WRX STi's.
    Port Size: 1.631"
    $27.95
    Mitsubishi Lancer Evo X Mild Steel Header Flange
    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 Mitsubishi Lancer Evo X 4V11T 2.0L I-4 engines.
    Port Size: 1.839"
    $44.95
    Ford Triton V-10 Mild Steel Header Flange
    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 Ford Triton V-10 engine used in the heavy-duty Ford trucks and vans from 1997-2010.
    Port Size: 1.615"
    $53.95
    Ford 7.3L PowerStroke Mild Steel Header Flange

    Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Ford 7.3L PowerStroke found in the heavy duty trucks and vans from 1995-2003.
    Port Size: 1.733"


    $44.95
    Small Block Ford-Windsor Mild Steel Header Flange for Brodix Track 1 Head
    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 all small block Ford-Windsor engines with Brodix Track 1 Series 20 degree heads. Will fit 2" and 3" bolt spacing.
    Port Size: 1.804"
    $44.95
    Ford 5.4L 32v Modular Motor Mild Steel Header Flange

    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 5.4L Cobra Jet Modular motor found in the high performance Mustang SVT Cobra R, Shelby GT 500, and Mustang GT, each in various years from 2000-2012.
    Port Size: 1.868"


    $44.95
    Big Block Ford (429-460) Square Port Mild Steel Header Flange
    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 all big block Ford engines with 385-series heads from 1968-1997, with the exception of the Cobra Jet models.
    Port Size: 2.341"
    $44.95
    Big Block Ford (429-460) Oval Port Mild Steel Header Flange
    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 all big block Ford engines with 385-series heads from 1968-1997, with the exception of the Cobra Jet models.
    Port Size: 1.868"
    $44.95
    Ford "Boss 9" Mild Steel Header Flange to fit Jon Kaase 429
    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 Ford Jon Kaase Racing Boss 9 heads.
    Port Size: 2.147"
    $44.95
    Ford 362 Roush/Yates D3 Mild Steel Header Flange
    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 Ford with Roush/Yates D3 heads.
    Port Size: 2.000"
    $44.95
    Small Block Ford- Windsor Stainless Header Flange for AFR 220cc Renegade Race Head Mild Steel
    These precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S.A and are machine surfaced. These flanges fit the small block Ford 302-351W AFR 220cc Renegade Race Heads with 3" bolt spacing.
    $44.95
    Ford 4.6L Modular V-8 Mild Steel Header Flange
    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 Ford 4.6L Modular motor found on a variety of Ford trucks, vans, and Mustangs from 1991-2012.
    Port Size: 1.936"
    $44.95
    Ford Boss 429 Mild Steel Header Flange
    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 Ford Boss 429 Mustang used in 1969 &1970.
    Port Size: 2.221"
    $44.95
    Ford 2.3L I4 DOHC Mild Steel Header Flange
    Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S.A. and are machine surfaced. These header flanges are specifically made for the Ford 2.3L I-4 used from 1995-2006.
    Port Size: 1.500", 1.750"
    $44.95
    Ford FE Low Rise Port 390, 406, 428 Mild Steel Header Flange
    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 Ford FE 390, 406, 428 low rise port engines
    $44.95
    Ford FE 427 High Rise Mild Steel Header Flange
    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 Ford FE 427 High Rise Engines.
    $44.95
    Ford Small Block with Yates SVO Port Mild Steel Header Flange
    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 small block Ford with Yates SVO heads. This flange has a rectangle port with 1.875" by 1.700" dimensions.
    $44.95
    SBF-W Mild Steel Header Flanges for Victor Senior Heads
    These precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S.A. and are machine surfaced. These flanges have a rectangle port with 1.750" by 1.625" dimensions. They fit the small block Ford 302-351W Edelbrock Victor Heads with 2 1/2" bolt spacing.
    $44.95
    SBF 351C 4 Brrl. Large Port Mild Steel Header Flange
    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 small block Ford 351 Cleveland engines with the 4 Brrl. port.
    $44.95
    SBF- 351C 4 Brrl. 1 3/4" Port Mild Steel Header Flange
    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 small block Ford 351 Cleveland engines with the 4 Brrl. port.
    $44.95
    Ford 312 Y Block Mild Steel Header Flange
    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 Ford 312 Y Block engines. This flange has a rectangle port with 1.415" by 1.200" dimensions.

    $44.95
    Ford 5.0L Coyote Mild Steel Header Flange
    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 Ford 5.0 Coyote engines.
    $44.95
    Small Block Chevy Stahl Adaptor Mild Steel Header Flange Set
    These precision laser cut 3/8" thick mild steel header flanges are manufactured in the U.S. and are machine surfaced. Sold as a set with counter sunk bolts.
    $369.95
    Big Block Chevy Mild Steel Header Flange
    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 Big Block Chevy head.
    $44.95
    Small Block Chevy 6.2L LT1 V8 Mild Steel Header Flange
    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 Chevy 6.2L LT1 V8 Small Block.
    $44.95
    SBC Splayed Valve Mild Steel Header Flange
    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 small block Chevy splayed/canted valve heads.
    $44.95
    Buick 455 Mild Steel Header Flange
    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"
    $44.95
    Buick 455 Stage III GSX Mild Steel Header Flange
    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"
    $44.95
    Buick V-6 "Fireball" Mild Steel Header Flange
    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"
    $39.95
    Audi 4.2L RS6 Mild Steel Header Flange
    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 Audi RS6 4.2L engine.
    Port Size: 1.630"

    $44.95
    Saab 9-7x Vortec 4200 Mild Steel Header Flange
    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 4.2L Vortec I-6 found in a variety of 2005-2009 GM SUV's.
    Port Size: 1.719"
    $67.95
    GM 2.3L Quad 4 Mild Steel Header Flange
    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 GM 2.3L Quad 4 engines.
    Port Size: 2.006"
    $44.95
    Toyota 7M-GTE Mild Steel Header Flange
    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 Toyota 7M-GTE engines.
    $67.95
    Toyota 2JZGTE Mild Steel Header Flange
    Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S.A and are machine surfaced. These header flanges are specifically made for the Toyota 2JZGTE engine. This flange has oval port dimensions of 1.810" and 1.250" at its widest points.
    $67.95
    Toyota 4A-GE 1.6L Mild Steel Header Flange
    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 4-cylinder engine of all Toyota 4A-GE models, 1st, 2nd, and 3rd generation.
    Port Size: 1.311" Round Port
    $44.95
    Saturn SC2 Mild Steel Header Flange
    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 4-cylinder engine of the Saturn SC2 from 1991-1999.
    Port Size: 1.970"
    $44.95
    Porsche 911 Carrera (Classic) Mild Steel Header Flange
    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 6-cylinder boxer engine of all Porsche 911 variants from 1976-1983.
    Stock Port Size: 1 3/4" Round Port
    $44.95
    Oldsmobile 303 "Rocket 88" Stainless Header Flange
    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"
    $44.95
    Oldsmobile 455 Mild Steel Header Flange
    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.
    $44.95
    5.9L 12v Dodge Cummins Mild Steel Header Flange
    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 1st gen (1984-1998) Dodge 5.9L 12 valve engines.
    Port Size: 1.648"
    $67.95
    5.9L 24v Dodge Cummins Mild Steel Header Flange
    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 2nd gen (1998-2002) Dodge 5.9L 24 valve engines.
    Port Size: 1.880"
    $67.95
    Dodge Viper 1st, 2nd, 3rd Gen Combination Mild Steel Header Flange
    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 1st, 2nd, and 3rd Gen Dodge Viper 8.0L and 8.3L engines. This flange fits engines used in production years 1992-2007, for the Dodge Viper.
    Port Size: 1.749"
    $53.95
    Dodge Viper (Gen 1 and 2) Mild Steel Header Flange
    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 1st and 2nd Gen Dodge Viper 8.0L engines. This flange fits engines used in production years 1992-2002, for the Dodge Viper.
    Port Size: 1.747"
    $53.95
    Dodge Viper SRT-10 Gen 3 Mild Steel Header Flange
    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 Third Gen Dodge Viper SRT-10 engines. This flange fits engines used in production years 2003–2006, for the Dodge Viper.
    Port Size: 1.791"
    $53.95
    Dodge Viper Gen 4 8.4L Mild Steel Header Flange
    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 Fourth Gen Dodge Viper 8.4L engines. This flange fits engines used in production years 2008–2010, for the Dodge Viper.
    Port Size: 1.782"
    $53.95
    Chrylser 4.7L PowerTech, Right Bank-Mild Steel Header Flange
    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 RIGHT bank of the Chrysler 4.7L V8, as well as the 4.7L H.O. engines.
    Port Size: 1.428"
    $44.95
    Chrylser 4.7L PowerTech, Left Bank-Mild Steel Header Flange
    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 LEFT bank of the Chrysler 4.7L V8, as well as the 4.7L H.O. engines.
    Port Size: 1.428"
    $44.95
    Mopar Pro-Stock Hemi Mild Steel Header Flange
    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 Mopar Pro-Stock drag racing DPS 2.0 engines.
    Port Size: 2.374"
    $44.95
    Chrysler B1 PSO Mild Steel Header Flange
    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 Chrysler B1 engines.
    Port Size: 2.390"
    $44.95
    Mopar 6.1L Hemi Mild Steel Header Flange
    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 6.1L Hemi engines.
    Port Size: 2.000"
    $44.95
    5.7L Hemi (Right Bank) Mild Steel Header Flange
    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 RIGHT bank of the 5.7L Hemi engines.
    Port Size: 1.696"
    $44.95
    FHO 426-604 Stage V Hemi Mild Steel Header Flange
    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 FHO 426-604 c.i. Hemi engines.
    Port Size: 1.977"
    $44.95
    Dodge Early Hemi Mild Steel Header Flange
    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 Early Dodge Hemi engines.
    Port Size: 1.957"
    $44.95
    Mopar W2 Hemi Mild Steel Header Flange
    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 W2 Hemi engines.
    Port Size: 1.915"
    $44.95
    Big Block Mopar (383-440) Oval Mild Steel Header Flange
    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 Big Block Mopar engines with an oval port.
    Port Size: 1.809"
    $44.95
    Big Block Mopar (383-440) Stage VI Mild Steel Header Flange
    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 Big Block Mopar engines with a large "D"-port.
    Port Size: 1.855"
    $44.95
    Big Block Mopar (383-440) 2 1/4" Mild Steel Header Flange
    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 Big Block Mopar engines with an extra-large rectangular port.
    Port Size: 2.263"
    $44.95
    Big Block Mopar (383-440) Stock Mild Steel Header Flange
    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 Big Block Mopar engines with a stock rectangular port.
    Port Size: 1.910"
    $44.95
    Big Block Mopar (383-440) 2" Mild Steel Header Flange
    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 Big Block Mopar engines with a large rectangular port.
    Port Size: 2.010"
    $44.95
    Small Block Mopar 273-360 1 5/8" Port Mild Steel Header Flange
    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 small block Mopar 273-360 engines
    $44.95
    Mazda Protege I-4 Mild Steel Header Flange
    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 1999-2003 Mazda Protege, 1.3L-2.0L I-4 engines.
    Port Size: 1.816"
    $44.95
    Jeep 3.8L V6 Mild Steel Header Flange
    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 Jeep 3.8L V6 engines.
    Port Size: 1.748"
    $39.95
    Honda S2000 F20C F22C1 Mild Steel Header Flange
    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 Honda F20C and F22C1 engines.
    Port Size: 1.915"
    $44.95
    Honda Acura K Series Mild Steel Header Flange
    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 Honda Acura K Series engines. This flange fits all K series heads, K20 through K24.
    Port Size: 1.771"
    $44.95
    Ferrari 458 Mild Steel Header Flange
    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 Ferrari 458 engines.
    Port Size: 1.672"
    $44.95
    Cadillac 500 Mild Steel Header Flange
    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 Cadillac 500 engines. This flange has a rectangle port dimension of 1.700" by 1.675"
    Port Size: 1.931"
    $44.95
    BMW S50 B30 I-6 Stainless Header Flange
    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 BMW S50 B30 I-6 engines.
    Port Size: 1.443"
    $67.95
    BMW Straight-6 M30 SOHC Mild Steel Header Flange
    Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.SA. and are machine surfaced. These header flanges are specifically made for the BMW I-6 SOHC M30 engines.
    Port Size: 1.615"
    $67.95
    BMW I-6 M50 Mild Steel Header Flange
    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 BMW I-6 M50 engine, lovingly called the "Big Six".
    Port Size: 2.000"
    $67.95
    Aston Martin V-8 Mild Steel Header Flange
    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 Aston Martin V-8 4.3L/4.7L engine.
    Port Size: 1.881"
    $44.95
    Aston Martin V-12 Mild Steel Header Flange
    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 Aston Martin V-12 6.0L engine.
    Port Size: 1.759"
    $39.95

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