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 Bolts, 8740 Chromoly, Black Oxide, Hex Head, 1/2-13 in. Thread, 3.25 in. UHL, Set of 5

ARP Bolts, 8740 Chromoly, Black Oxide, Hex Head, 1/2-13 in. Thread, 3.25 in. UHL, Set of 5

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ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 2.000 in. OD, Chromoly, Black Oxide, 0.275 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 2.000 in. OD, Chromoly, Black Oxide, 0.275 in. Thick, Each

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

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

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