SWAG Performance Heavy Duty Head Stud Kit
fits 17-21 GM 6.6 L5P Duramax Diesel Engines
Tested at 220,000+ PSI Tensile Strength
Our Head Stud material properties allow for far greater tensile strength compared to 8740 chromoly steel head studs. Threads are rolled after heat treatment for optimum fatigue strength. Our heavy-duty studs clamping strength prevents cylinder heads from lifting under extreme conditions.
SWAG Performance HD Head Studs have been rigorously lab-tested in the USA and are guaranteed strong!
Warranty Information