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.

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated there s not a better stud setup on the market today.

Chevrolet BB Pontiac Pro stock aluminum head, Brodix ARP 235-3704 12-Point Pro Series, Cylinder head bolts. Head bolts are available with a reduced wrenching 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

Chevrolet BB Pontiac Pro Stock aluminum head, Dart Big Chief ARP 235-3705 12-Point Pro Series, Cylinder head bolts. Head bolts are available with a reduced wrenching 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then each stud is placed vertically in special racks and precisely heat treated to 200,000 psi.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi.

ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat-treated to 200 000 psi.

BB Chevy 12deg Pro-Filer "Hitman" spread port iron block 12pt hsk

Cylinder Head Studs, Pro Series, 12-point, ARP 2000, Black Oxide, Washers, Chevy, 8.1L, Kit

Cylinder Head Studs, Pro Series, 12-Point Head, Chevy, Big Block, Merlin Heads, Kit

Cylinder Head Studs, Pro Series, 12-Point Nuts, Chevy, Big Block, Merlin Heads, Kit

Header Bolts, Hex Head, 3/8 in. Wrench, Custom 450, Black Oxide, Chevy, Ford, Set of 16

Header Bolts, Hex Head, 3/8 in. Wrench, Custom 450, Black Oxide, 3/8 in.-16, 1.000 in. U.H.L., Set of 16

Header Studs, 12-Point Nuts, Custom 450, Black Oxide, Chevy, Big Block, Set of 16

Valve Cover Bolts, Chromoly, Black Oxide, Hex, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Valve Cover Bolts, Chromoly, Black Oxide, Hex, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Valve Cover Bolts, Chromoly, Black Oxide, Hex, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Valve Cover Bolts, Chromoly, Black Oxide, 12-Point, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Valve Cover Bolts, Chromoly, Black Oxide, 12-Point, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Valve Cover Bolts, Chromoly, Black Oxide, 12-Point, 1/4 in.-20 Diameter, BBC Brodix Valve Covers, Set of 7

Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, Kit

Cylinder Head Bolts, High Performance, Hex Head, Chevy, 348, 409, Kit

Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, with Aftermarket Heads, Kit

Cylinder Head Bolts, High Performance Hex, Chevy, Big Block, with OEM Cast, Kit

ARP has literally hundreds of standards and specifications that everyone at ARP is completely dedicated to the development and analysis of appropriate bolt designs for all types of applications.

Big Block Chevy with Mark IV or Mark V block, Brodix (-2, -4) and Canfield Aluminum Heads

Cylinder Head Bolts, High Performance, Hex Head, Chevy, 454, Aftermarket Heads, Kit

Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, Edelbrock Performer, RPM, Heads, Kit

Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, Edelbrock Victor Heads, Kit

Cylinder Head Bolts, High Performance, 12-Point Head, Chevy, Big Block, Kit

Cylinder Head Bolts, High Performance, 12-Point Head, Chevy, Big Block, with Brodix, Canfield Heads, Kit

Cylinder Head Bolts, High Performance, 12-Point Head, Chevy, Big Block, with Aftermarket Heads, Kit

Cylinder Head Bolts, High Performance 12-Point, Chevy, Big Block, with Pro Stock, Big Chief Heads, Kits

Cylinder Head Bolts, High Performance 12-Point, Exhaust Only, Chevy, Big Block, with Dart Aluminum Heads, Kits

High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

High Performance Cylinder head bolts. High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

Cylinder Head Bolts, 12-Point Head, Chevy, Big Block with Aftermarket Block, with AFR Heads, Kit

Cylinder Head Studs, Hex Head, Chevy, Big Block, with Factory Aluminum Heads, Kit