Xotic Performance | 2001-2016 GM 6.6L Duramax Head Stud Kit

Vehicle Fitments LB7 (Found in 2001 - Early 2004 models, 8th Digit of VIN is 1) LLY (Found in Late 2004 - 2005 models, 8th Digit of VIN is 2)LBZ (Found in 2006 - Early 2007 models, 8th Digit of VIN is D)LMM (Found in Late 2007 - Early 2011 models, 8th Digit of VIN is 6)LML (Found in Late 2011 - Current models, 8th Digit of VIN is 8)   Package Content 36x Heads Studs (M12 x 142mm) 36x Nuts (M12)36x Hardened Parallel Washer8x Rocker Bolts (M8 x 97mm) 2x Sockets (10mm and 16mm) 1x Allen Wrench (5mm)1x Fastener Assembly Lubricant1x Instruction Manual Head Studs Vs. Head Bolts In every diesel car, there are high cylinder pressures that can damage head gaskets. Factory OEM head bolts are torque to yield, meaning you torque the bolt to a specific torque with a final 90-degree rotation that will place the bolt at its’ maximum stretch point. Our observation through years of dealing with trucks is that when you add parts that increase horsepower (turbocharger, injectors, chips etc.), you risk