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Ford Performance Stage 8 Header Bolts (96-04 GT, Cobra, Mach 1; 07-12 GT500)

Item 50583
AmericanMuscle no longer carries the Ford Performance Stage 8 Header Bolts (96-04 GT, Cobra, Mach 1; 07-12 GT500). Please check out 2015-2022 Mustang Crate Engines and Blocks for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation


    • Locking header bolts
    • Grade 8 steel construction
    • Duplex nickel plated
    • Hex head design
    • Size - 8mm-1.25 x 22mm
    • Made in the USA
    • Sold as a set of 16
    • Fits 96-04 GT, 96-04 Cobra, 03-04 Mach 1 and 07-12 GT500


    Locking Bolts. Securely mount your Mustangs manifolds or aftermarket headers by replacing that old weak factory hardware with high strength Stage 8 Locking Header Bolts. These Ford Racing Header fasteners will absolutely, positively not back out. Eliminates need to monitor and tighten bolts regularly.

    Ford Racing Quality. Made in the USA from specially-engineered Grade 8 carbon alloy steel that features a duplex nickel plated finish to resist corrosion, these Ford Racing Header Bolts are hardened to a tensile strength of 150,000 psi to provide superior strength for long-lasting performance.

    Application. These Ford Racing Stage 8 Header Bolts are designed for use on 1996-2004 GT, 2001 Bullitt, 2003-2004 Mach 1, 1996-2004 SVT Cobra and 2007-2012 Shelby GT500 models. Fits 4.6L/5.4L 2V and 4V modular V-8 engines, will not fit 3V heads.

    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (16) Bolts
    • (16) Washers

    Tech Specs

    • Thread Size: 8mm-1.25
    • Head Style: Hex
    • Length: 22mm
    • Fastener Material: Grade 8 aircraft steel
    • Fastener Finish: Duplex nickel plated

    Questions & Answers

    10 More Questions

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