NOTE: This kit is for 2013-2017 blocks with shallow head bolt threads. The 2011-2012 blocks use deep head bolt threads.ARP - The world leader in fastener technology has just released these new Pro Series head studs for 2013 and later Ford 5.0L Coyote V8 applications. The head stud kit features premium grade ARP2000 material that is rated at 220,000 psi tensile strength. ARP fasteners are centerless ground, heat treated prior to thread rolling and machining and designed to exceed the OEM fasteners in strength and durability. Optimum design, enhanced reliability and increased strength are the main attributes of ARP's Pro Series fastener kits.