The ARP 150-2505 Balancer Bolt Kit for your 2003-2010 Ford 6.0/6.4L Powerstroke is optimized for enhanced reliability and increased strength. Each kit includes 8740 Pro Series balancer bolts that are rated at 200,000 psi tensile strength. ARP bolts are cold forged to ensure molecular integrity, 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 balancer bolt kits.