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Product Summary

2" Thread Length, 6.125" Overall Height, Chromoly

    Key Specs

    MFG. Part #12498545

    Need To Know

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    Details

    Chevrolet Performance Cylinder Head Bolts are built to exact tolerance, extreme durability for high-performance applications, and are the best choice for your GM LS series engine. 

    • For GM LS1 1997-2003 engines
    • Chromoly cylinder head bolts
    • Hex head
    • Includes
      • (8) M11 x 2.0 bolts, 155 mm long
      • (2) M11 x 2.0 bolts, 100 mm long
      • (5) M8 x 1.25 bolts, 45 mm long
    • First design that used 3 different lengths
    • Cadmium plated finish
    • Sold as a set (enough for one cylinder head)

    Specifications

    KEY SPECS
    MFG. Part #12498545
    GENERAL
    Thread Length2"
    Overall Height6.125"
    Wrench TypeHex
    Material TypeChromoly
    FinishCadmium Plated
    Sold in QuantitySet
    NotesFor one cylinder head. 2 kits required for complete engine.
    Fastener StyleBolt
    Undercut StudNo
    Thread Pitch7/16 - 14
    Washers IncludedNo
    Cut to FitNo