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 Valve Cover Studs, Black Oxide Hex, Cast Aluminum Cover, Dart, Brodix, B&B, Set of 8

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ARP Header Bolts, 12-Point, 5/16 in. Wrench, Stainless Steel, Polished, 3/8 in.-16, 0.750 in. UHL, Set of 16

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