Gator Fasteners Heavy Duty Head Stud Kit – 2001-2016 Chevy/GMC 6.6L Duramax Diesel (HSK66)

Keep your Duramax's head gaskets sealed under boost with the Gator Fasteners Heavy Duty Head Stud Kit for 2001-2016 Chevrolet and GMC 6.6L Duramax diesel trucks (LB7, LLY, LBZ, LMM, and LML). Factory torque-to-yield head bolts stretch and lose clamping force over time, especially on trucks running higher fuel pressure, bigger injectors, or aftermarket tuning — this kit replaces them with reusable, precision-machined studs for consistent, repeatable clamping load every time you service the heads.

• Made from HD220 high-strength material rated to 220,000 PSI tensile strength
• Rolled threads after heat treating for maximum fatigue strength and thread integrity
• Precision machined and heat treated for consistent torque values
• Complete kit includes studs, washers, and nuts for both cylinder heads
• Includes Gator Juice assembly lubricant for accurate torque readings on install
• Fits: 2001-2016 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD with the 6.6L Duramax diesel engine (LB7, LLY, LBZ, LMM, LML)

Mfg Part #: HSK66. A must-have upgrade for any Duramax running towing loads, EGR/head gasket repairs, or performance tuning above stock boost and fuel levels.