engineLifter - Single Torque Specsfor 2012 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WDUnitslb-ftNm11 fastenersSeqComponentTorqueAngle—Cover Bolts16 lb-ft · 22 Nm——Electrical Connector Bolts7 lb-ft · 9 Nm——Gasket BoltsCritical15 lb-ft · 20 Nm——Gasket Surface BoltsCriticalClean mating surfaces20 lb-ft · 27 Nm——Intake Manifold Bolts18 lb-ft · 25 Nm——Mounting BoltsCritical47 lb-ft · 64 Nm——Rocker Arm BoltsCriticalTighten with cam lobe pointing away22 lb-ft · 30 Nm——Rocker Arm Shaft BoltsCriticalTighten evenly in sequence18 lb-ft · 25 Nm——Sensor Bolts8 lb-ft · 11 Nm——Sensor Mounting Bolts11 lb-ft · 15 Nm——Valve Cover BoltsTighten in sequence7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec