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This ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi--15 percent stronger than Grade 8 fasteners. They comes with hex heads or reduced wrenching 12-point heads that eliminate the need for valvetrain removal when re-torquing cylinder heads.

  • Fastener Style - Bolt.
  • Head Style - Hex.
  • Fastener Material - Chromoly.
  • Fastener Finish - Black oxide.
  • Washers Included - Yes.
  • Make - Chevrolet.
  • Year - 1966-2000.
  • Engine Size - 7.4L/454, 7.0L/427, 6.6L/402, 6.5L/396.
  • Cylinder Head Style - Dart Pro 1, World Products, Merlin, Bowtie aluminum, Pro Top Line.
  • Engine Family - Chevy big block Mark IV, Chevy big block Gen V, Chevy big block Gen VI.
    ColorAs Shown

    ARP 1353603 High Performance Series Hex Cylinder Head Bolts


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