Product Summary

Long Tube Header Tube Type, Standard Flange Style

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    Key Specs

    MFG. Part #D623-B
    Header Tube TypeLong Tube
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel
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    Need To Know

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    Doug's Headers D623-B Details

    Doug's PASSENGER CAR HEADERS Long Tube Hi-Temp Black Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

    • 3/8" Thick machined flanges...no warping
    • CNC mandrel bent tubes... accurate fit & better flow
    • Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
    • Heavy 16 gauge tubing...longer life
    • Tubes are pre-polished to remove scratches and the header isfinished with a Hi-Temp Black Coating
    • Doug's Headers D623-B 1 3/4" 4-Tube Full Length Header Ford Mustang 64-73 Cougar 67-68 Fairlane 66-67 Falcon 60-65 Comet 62-65 Ranchero 60-67 260-351W with TCI or similar Mustang II Steering Swap Hi-Temp Black Coating
    • Will not fit original/stock style front end chassis applications
    • Doug's Headers D623-B 1 3/4" 4-Tube Full Length Header Ford Mustang 64-73 Cougar 67-68 Fairlane 66-67 Falcon 60-65 Comet 62-65 Ranchero 60-67 260-351W with TCI or similar Mustang II Steering Swap Hi-Temp Black Coating
    • Will not fit original/stock style front end chassis applications

    Doug's Headers D623-B Specifications

    KEY SPECS
    MFG. Part #D623-B
    BrandDoug's Headers
    Header Tube TypeLong Tube
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel
    ColorBlack
    Weld-UpNo
    Collector Diameter3 Inch
    FinishHi-Temp Black
    Hardware IncludedYes
    Gasket(s) IncludedYes
    GENERAL
    Sold in QuantityPair
    GTIN Code694342543068

    Questions & Answers

    Fitment

    • Ford 260

    • Ford 302

    • Ford 351W

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    • Ford 302

    • Ford 351W

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    • Ford 302

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    • Ford 351W

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    • Ford 260

    • Ford 302

    • Ford 302

    • Ford 351W

    • Ford 302

    • Ford 302

    • Ford 351W

    • Ford 302

    • Ford 260

    • Ford 302

    • Ford 302

    • Ford 351W

    • Ford 260

    • Ford 302

    • Ford 302

    • Ford 351W

    • Ford 351W

    • Ford 302

    • Ford 351W

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    • Ford 302

    • Ford 351W

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    • Ford 351W

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