Head Stud Kit

Upgrade your diesel engine's performance and reliability with the SPELAB Head Stud Kit. Whether you’re building a race-ready engine or improving your daily driver’s reliability, SPELAB Head Studs ensure that your engine's cylinder head stays securely in place, preventing warping and blown gaskets. These head studs are crafted from premium 42CrMo high-strength alloy steel, offering a tensile strength of over 220,000 psi, which significantly surpasses stock bolts and provides excellent clamping force. Each stud is heat-treated to a Rockwell C 39-44 hardness for consistent strength and elasticity under stress. The black oxide finish provides excellent corrosion resistance, extending the lifespan of the studs. Precision machining ensures a perfect fit for optimal torque and reliability, minimizing the risk of failure under heavy-duty conditions. This kit is specifically designed for 2001-2016 6.6L Chevy/GMC Duramax diesel engines, including LB7, LLY, LBZ, LMM, and LML models. Always follow SPELAB’s detailed installation instructions, and consider professional installation if you are not confident in performing the task yourself to avoid potential issues.