6.0L ARP Head Studs 625+ Custom Age

ARP® ADDS 260,000 PSI HEAD STUDS FOR 03-07 6.0L POWERSTROKES With performance enthusiasts adding increasing amounts of turbo boost to diesel applications,ARP® has provided an extra measure of security in the form of extra-strong headstuds manufactured from the firm's proprietary Custom Age 625+® material that has aminimum rating of 260,000 psi tensile strength. They are engineered to provide the clampingforce required to keep cylinder heads from lifting due to exceptionally high combustionpressures. The studs are manufactured in ARP’s Santa Paula, CA plant, with threads rolled after heat-treatingto provide optimum fatigue strength. They are centerless ground to assure perfectconcentricity. The ends of the studs are broached to facilitate easy installation. This featurealso enables the cylinder head to be removed in tight quarters.