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 Cylinder Head Studs, Pro Series, 12-Point Heads, For Ford, SVO 351 Block, SVO High Port Heads, Kit

ARP Cylinder Head Studs, Pro Series, 12-Point Heads, For Ford, SVO 351 Block, SVO High Port Heads, Kit

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ARP Cylinder Head Bolts, 12-point Head, High Performance, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, High Performance, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

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ARP Header Bolts, Hex Head, Stainless Steel, Polished, 3/8 in.-16, For Oldsmobile, 330-455, Set of 14

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ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Ford 4-6 Cyl, 2300cc Pinto, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Ford 4-6 Cyl, 2300cc Pinto, Kit

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ARP Valve Cover Studs, Black Oxide 12-Point, 3.5 in. Length, Cast Aluminum Cover, DRT, BRO, B&B, Set of 14

ARP Valve Cover Studs, Black Oxide 12-Point, 3.5 in. Length, Cast Aluminum Cover, DRT, BRO, B&B, Set of 14

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ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Chrysler 4 & 6 Cyl, KB Hemi (standard deck) 9/16 in, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Chrysler 4 & 6 Cyl, KB Hemi (standard deck) 9/16 in, Kit

$1,230.50