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.

More From This Category

ARP Cylinder Head Stud, Pro-Series, Hex Head U/C Studs, For Chevrolet BB, 396-402-427-454, Mark IV w/ Merlin Heads, 10 Long Studs, Kit

ARP Cylinder Head Stud, Pro-Series, Hex Head U/C Studs, For Chevrolet BB, 396-402-427-454, Mark IV w/ Merlin Heads, 10 Long Studs, Kit

$459.71

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Ford Modular, 4.6L & 5.4L 2V/4V, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Ford Modular, 4.6L & 5.4L 2V/4V, Kit

$917.67

ARP Head Bolt Kit, BBC Edelbrock 8551 Hex Stainless Steel

ARP Head Bolt Kit, BBC Edelbrock 8551 Hex Stainless Steel

$434.90

ARP Cylinder Head Bolts, 12-point Head, Stainless, For Chrysler BB, 383-400-413-426-440 Wedge, Kit

ARP Cylinder Head Bolts, 12-point Head, Stainless, For Chrysler BB, 383-400-413-426-440 Wedge, Kit

$363.33

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

$190.46