Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.

More From This Category

CROWCAMS Rocker Studs, Cryo Treated, For Ford V8 Stud, 2.670in. Length

CROWCAMS Rocker Studs, Cryo Treated, For Ford V8 Stud, 2.670in. Length

$126.93

ARP Cylinder Head Stud, Pro-Series, Hex Head, Diesel, For Ford 6.9L International, Kit

ARP Cylinder Head Stud, Pro-Series, Hex Head, Diesel, For Ford 6.9L International, Kit

$566.02

MILODON Cylinder Head Studs, Chromoly, Black Oxide, Hex Head, For Chevrolet, Small Block, Stock, Aftermarket Heads, Set

MILODON Cylinder Head Studs, Chromoly, Black Oxide, Hex Head, For Chevrolet, Small Block, Stock, Aftermarket Heads, Set

$405.92

ARP Header Studs, 12-Point Nuts, Custom 450, Black Oxide, For Buick 3.8L, Set of 12

ARP Header Studs, 12-Point Nuts, Custom 450, Black Oxide, For Buick 3.8L, Set of 12

$126.64

ARP Head Bolt Kit, BBC Edelbrock 8551 Hex Stainless Steel

ARP Head Bolt Kit, BBC Edelbrock 8551 Hex Stainless Steel

$434.90