engineHead Gasket - Single Torque Specsfor 2015 GMC Sierra 1500 5.3L V8 · 4WDUnitslb-ftNm6 fastenersSeqComponentTorqueAngle1Cylinder Head Bolts - Step 1CriticalAlways use new TTY bolts30 lb-ft · 40 Nm—2Cylinder Head Bolts - Step 2CriticalTighten in sequence59 lb-ft · 80 Nm—3Cylinder Head Bolts - Step 3CriticalPlus 90 degrees0 lb-ft · 0 Nm90°4Cylinder Head Bolts - Step 4CriticalPlus 90 degrees0 lb-ft · 0 Nm90°—Exhaust Manifold NutsApply anti-seize18 lb-ft · 25 Nm——Intake Manifold BoltsTighten in sequence18 lb-ft · 25 Nm—📝 Suggest a correction to this torque spec