Product Summary

1.15" Overall Length, 0.75" Under Head Length, Steel

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    Key Specs

    MFG. Part #550976
    BrandSpeedway Motors
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    Speedway Motors 550976 Details

    These heat-treated steel hex head header bolts ffeature a black oxide coating. They work great for bolting headers to your small block Chrysler 273, 318, 340 or 360.

    Has 5/16"-18 x 3/4" threads. Set of 14 bolts.

     

    .550" head diameter

    Speedway Motors 550976 Specifications

    KEY SPECS
    MFG. Part #550976
    BrandSpeedway Motors
    GENERAL
    Overall Length1.15"
    Under Head Length0.75"
    Thread Pitch5/16"-18
    Wrench TypeHex
    Material TypeSteel
    FinishBlack Oxide
    Sold in QuantitySet
    NotesSet of 14 bolts.
    ColorBlack

    Ratings & Reviews

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    Awesome quality and price

    5.0

    11 years ago

    KELSO

    WYMORE, NEBRASKA

    Verified

    Good header bolts that didn't stretch or feel spongy when you torqued them up. Hard to believe you can actually get something that is inexpensive and still be high quality.

    Would Recommend

    Showing 1 of 1 reviews

    Questions & Answers

    1 Question • 2 Answers

    What size is the bolt head 3/8" 0r 7/16"?

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    • 15 years ago

    2 answers

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