ARP High Performance Series head bolt kits are tough. They are rated at 180,000 psi--15 percent stronger than Grade 8 fasteners. They come available with a reduced wrenching hex head or 12-point head that help eliminate the need for valvetrain removal when re-torqueing cylinder heads.

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ARP Header Bolts, 12-Point, 5/16 in. Wrench, Custom 450, Black Oxide, 3/8 in.-16, 0.750 in. UHL, Set of 12

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ARP Cylinder Head Stud, Pro-Series, Hex Head U/C Studs, For Chevrolet BB, w/ GM Aluminium Block, 7/16 in. Dia, Kit

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MILODON Cylinder Head Studs, Chromoly, Black Oxide, For Ford, V8, Kit

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ARP Valve Cover Bolts, Chromoly, Black Oxide, Hex, 1/4 in.-20 Diameter, Stamped Steel Covers, Set of 14

ARP Valve Cover Bolts, Chromoly, Black Oxide, Hex, 1/4 in.-20 Diameter, Stamped Steel Covers, Set of 14

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