01-10 Duramax ARP Custom Age 625+ Head Stud Kit

With performance enthusiasts adding increasing amounts of turbo boost to diesel applications,

AR has provided an extra measure of security in the form of extra-strong head

studs manufactured from the firm's proprietary Custom Age 625+ material that has a

minimum rating of 260,000 psi tensile strength. They are engineered to provide the clamping

force required to keep cylinder heads from lifting due to exceptionally high combustion

pressures.

The stud kits include heat-treated chrome moly steel nuts (12-point) and parallelground

washers

The studs are manufactured in ARP’s Santa Paula, CA plant, with threads rolled after heattreat

to provide optimum fatigue strength.

They are centerless ground to assure perfect

concentricity. The ends of the studs are broached to facilitate easy installation. This feature

also enables the cylinder head to be removed in tight quarters.