Header Adapters

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Small Block Chevy to Stahl Header Adapters
  • 5/8 in. Thick
  • Port opening: 1.100 in. x 1.100 in.
  • Tapped for 3/8 in. Header Bolts
  • Made in the USA
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    $199.99
    $180.99
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    AMC V8 Header Flanges

    $77.99
    $60.39
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    AMC Header Flange
  • 1970-1991 AMC 304/360/390 & 401 V8 Engines
  • ("P" or "Dog-Leg") Shaped Port
  • 1 13/16 in. H x 1 1/4 in. W
  • (1 9/16 in. W at "Dog-Leg")
  • 3/8 in. Thick Steel Flange
  • Sold Individually
  • Made in the USA
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    $77.99
    $60.39
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    Chrysler Header Flanges

    $35.99
    $32.99
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    Header Flange
  • Big Block Chrysler 383-440
  • Rectangular Port
  • 1.750 in. W x 1.420 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $35.99
    $32.99
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    $67.99
    $54.39
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    Header Flange
  • Chrysler 426 Hemi
  • Square Port
  • 1.890 in. W x 1.890 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $67.99
    $54.39
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    Chevy Small Block Header Flanges

    $16.79
    $15.19
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    Header Flange
  • Small Block Chevy
  • Oval Port
  • Lightweight,1/4 in. Thick Steel Flange
  • Ideal for Racing Applications
  • 1 1/2 in. W x 1 13/16 in. H
  • Sold Individually
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    $16.79
    $15.19
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    $49.99
    $45.99
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    Header Flange
  • Small Block Chevy
  • Oval Port
  • 1 1/2 in. W x 1 13/16 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
  • Made in the USA
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    $49.99
    $45.99
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    $39.99
    $36.99
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    Header Flange
  • Small Block Chevy (with Dart Sportsman Head)
  • Rectangular Port
  • 1.584 in. W x 1.750 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $39.99
    $36.99
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    $39.99
    (1)
    Ships on 06/13/22
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    Header Flange
  • GM LT1
  • D-Port
  • 1.590 in. W x 1.790 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $39.99
    (1)
    Ships on 06/13/22
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    GM LS Header Flanges

    $32.99
    $29.99
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    Header Flange
  • GM LS1/LS2/LS3/LS6
  • 1.750 in.Round Port
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $32.99
    $29.99
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    $32.99
    $29.99
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    Header Flange
  • GM LS1/LS2/LS3/LS6
  • 2 in. Round Port
  • 3/8 in. Thick Steel Flanges
  • Sold Individually
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    $32.99
    $29.99
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    Chevy Big Block Header Flanges

    $49.99
    $45.99
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    Header Flange
  • Big Block Chevy
  • 2 1/16 in.Round Port
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $49.99
    $45.99
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    $49.99
    $45.99
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    Header Flange
  • Big Block Chevy
  • 2 1/8 in. Round Port
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $49.99
    $45.99
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    $32.99
    $29.99
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    Header Flange
  • Big Block Chevy
  • Square Port
  • 2.400 in. W x 2.070 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $32.99
    $29.99
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    Ford Header Flanges

    $36.99
    $33.99
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    Header Flange
  • Ford 4.6/5.4L 2-Valve Modular
  • Round Port
  • 1.625 in.
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $36.99
    $33.99
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    $32.99
    $29.99
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    Header Flange
  • Ford 5.0L 4-Valve
  • 1 7/8 in. Round Port
  • 3/8 in. Thick Steel Flange

    Fits:
  • 2011-Present (Coyote)
  • 2012-2013 Boss 302 (Road Runner)
  • 2011-Present F-Series Truck
  • Sold Individually
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    $32.99
    $29.99
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    $39.99
    $36.99
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    Header Flange
  • 1987-95 Ford 5.0L
  • Oval Port
  • 1.343 in. W 1.755 in. H
  • 2 in. Bolt Pattern
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $39.99
    $36.99
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    $39.99
    $36.99
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    Header Flange
  • 1969-70 Boss 302
  • 1970-74 351C 4V
  • Square Port
  • 1.890 in. W x 2.150 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $39.99
    $36.99
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    $39.99
    $36.99
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    Header Flange
  • Ford 351C/351M/400 2V
  • Oval Port
  • 1.650 in. W x 2 in H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $39.99
    $36.99
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    $46.99
    $42.99
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    Header Flange
  • Ford 429-460
  • Oval Port
  • 1.450 in. W x 2.250 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $46.99
    $42.99
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    $43.99
    $39.99
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    Header Flange
  • Ford FE 332-390
  • 8-bolt
  • Rectangular Port
  • 1.560 in. W x 2.290 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
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    $43.99
    $39.99
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