Product Summary

0.75" Under Head Length, 3/8"-16 Thread Pitch, Steel

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    Key Specs

    MFG. Part #H7971
    BrandPatriot Exhaust
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    Need To Know

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    Patriot Exhaust H7971 Details

    3/8-16 x 3/4 Zinc plated header bolts (pack of 16)

    • Patriot Exhaust H7971 3/8-16 x 3/4 Zinc plated header bolts (pack of 16)
    • Patriot Exhaust H7971 3/8-16 x 3/4 Zinc plated header bolts (pack of 16)

    Guides & Documents

    Patriot Exhaust H7971 Specifications

    KEY SPECS
    MFG. Part #H7971
    BrandPatriot Exhaust
    GENERAL
    Under Head Length0.75"
    Thread Pitch3/8"-16
    Material TypeSteel
    FinishZinc
    Sold in QuantitySet
    GTIN Code694342505325

    Questions & Answers

    Fitment

    • Ford 289

    • Ford 289

    • 396 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 LS5

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

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    • Chevy Big Block V8 Mark IV 396 L35

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    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 LS5

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 427 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • Ford 289

    • Ford 302

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 289

    • 429 Ford 385 Series Big Block V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • 454 Chevy Big Block V8

    • Chevy Big Block V8 Mark IV 454 L19

    • Chevy Big Block V8 Gen 5 454 L19

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • Chevy Big Block V8 Gen 6 ZZ454 454

    • Chevy Big Block V8 Gen 5 454 L19

    • 402 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 454 Chevy Big Block V8

    • 396 Chevy Big Block V8

    • 402 Chevy Big Block V8

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 289

    • Ford 289

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • Ford 302

    • Ford 302

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 289

    • Ford 302

    • Ford 289

    • Ford 302

    • Ford 302

    • 429 Ford 385 Series Big Block V8

    • Ford 302

    • Ford 302

    • 351M Ford 335 Series Cleveland V8

    • 429 Ford 385 Series Big Block V8

    • Ford 289

    • Ford 289

    • Ford 302

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • 426 Hemi

    • Ford 289

    Customer Impersonation Script