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

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.

MC 290, 343, 390 (1969 & Earlier) with Edelbrock heads 7/16" ARP 114-3605 High Performance Cylinder Head Bolts, Hex Head. 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.

Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly.

AMC304-360-390-401 cid (1970 later) 1/2, ARP 114-4002 Cylinder Head Stud kit with hex nuts.It is for good reason that virtually every top professional engine builder relies on ARP head studs for their all-out competition powerplants

ARB High Performance Series Head Bolts are made with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing

AMC304, 360, 390, 401(1970 Later) with 1/2 bolts, ARP 114-3602 High Performance Cylinder Head Bolts, Hex Head. 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

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.

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.

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.

AMC 401 with Indy heads, ARP 114-3603 High Performance Cylinder Head Bolts, Hex Head. 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.

These Pro series 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 190,000 psi. The 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.