If you’re pushing your 6.4L Powerstroke beyond stock—or simply want to eliminate one of its biggest failure points—the SWAG Performance Heavy Duty Head Stud Kit is the upgrade your engine demands.
Factory torque-to-yield head bolts are known to stretch under boost, leading to head lift, blown gaskets, and costly downtime. This kit replaces weak OEM head bolts with high-strength studs engineered to maintain consistent clamping force under extreme cylinder pressure.
Built for real-world diesel applications—not inflated brand pricing—this kit delivers the durability, reliability, and holding power your 6.4 needs whether you tow, tune, or daily drive.
SWAG Performance HD Head Studs have been rigorously lab-tested in the USA and are guaranteed strong!
