engineExhaust Manifold Torque Specsfor 2000 GMC Sierra 1500 5.3L V8 Vortec · RWDUnitslb-ftNm12 fastenersSeqComponentTorqueAngle—Cover Bolts15 lb-ft · 20 Nm——EGR Tube Fitting35 lb-ft · 47 Nm——Electrical Connector Bolts6 lb-ft · 8 Nm——Exhaust Manifold BoltsCenter-out sequence.18 lb-ft · 25 Nm——Exhaust Manifold NutsApply anti-seize25 lb-ft · 34 Nm——Flange BoltsAnti-seize44 lb-ft · 59 Nm——Gasket Surface BoltsClean mating surfaces19 lb-ft · 26 Nm——Hanger Bolts19 lb-ft · 25 Nm——Heat Shield Bolts10 lb-ft · 14 Nm——Mounting Bolts44 lb-ft · 60 Nm——O2 SensorApply anti-seize to threads35 lb-ft · 47 Nm——Sensor Mounting Bolts10 lb-ft · 14 Nm—📝 Suggest a correction to this torque spec