Key features

• •DIRECT FIT REPLACEMENT - Fits selected 2001-2016 6.6L LB7 LLY LBZ LMM LML Chevy Duramax Diesel Models. Please see description below for accurate fitment. Engineered to unleash more performance out of your vehicle. Centerless ground to assure perfect concentricity.
• •ULTRA STRENGTH - Chrome Moly 8740 Alloy Steel with 12-pt nuts & parallel-ground washers included. Rated at 220,000 psi tensile strength. Threads rolled after heat treatment for optimum fatigue strength. Ample clamping strength prevents cylinder heads from lifting. Rigorous quality inspections are undertaken to ensure premium product standards.
• •EASY INSTALLATION - Broached stud ends install & make cylinder head removal easier. Installation manual is included with drawn diagrams to ease the installation process. Head studs are designed to retain cylinder seal even with today's extreme high pressure turbo systems.
• •KIT INCLUDES - 36 Heads Studs, 36 Nuts, 36 Hardened Parallel Washer, 8 Rocker Bolts Fastener Assembly Lubricant & Instructions Manual. Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
• •WORRY-FREE PURCHASE: Xotic Performance is dedicated to offering LIFETIME WARRANTY and full money back guarantee if you aren't satisfied. If you have any questions, please feel free to contact us. ***PLEASE NOTE*** AUTO ESSENTIALS IS THE SOLE DISTRIBUTER FOR THIS PRODUCT. Purchasing from elsewhere will VOID your warranty.