Swap out the factory main bolts on your 2008-2010 Ford 6.4L Powerstroke with the XDP X220 Main Stud Kit XD3005MS. Featuring 8740 Chromoly construction with an added proprietary element for additional strength to ensure these studs will not stretch like the factory bolts. These heavy-duty studs are rated at 220,000+ psi tensile strength and 210,000+ psi yield strength to provide better clamping force under higher combustion pressures. The threads are rolled after heat-treating to provide optimum fatigue strength.

In addition to the upgraded strength, replacing the OEM main bolts with studs also allows you to obtain a more precise torque reading. A conventional bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time. With a stud the force gets applied to the vertical axis, resulting in a more even clamping force. These are a must-have for high-performance applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use. Furthermore, they also allow for easier engine assembly and proper alignment of the main bearing caps every time. These main studs are manufactured in an ISO/TS 16949 quality control facility. Installation instructions are included for a hassle-free installation. Assembly lubricant sold separately.

• Includes Washers & 12 Point Nuts
• Yield Strength: 210,000-230,000 PSI
• Tensile Strength: 220,000-236,000 PSI
• Threads Rolled After Heat Treatment
• Reusable Studs, Unlike TTY OEM Bolts
• 10mm Studs Test Out At Max Load Of Over 120KN
• Manufactured In ISO/TS 16949 Quality Control Facility
• 8740 Chromoly Construction With Added Proprietary Element