engineValve Spring - Single Torque Specsfor 2011 Lexus IS F 5.0L V8 · RWDUnitslb-ftNm10 fastenersSeqComponentTorqueAngle—Cover Bolts15 lb-ft · 20 Nm——Electrical Connector Bolts6 lb-ft · 8 Nm——Gasket BoltsCritical19 lb-ft · 25 Nm——Gasket Surface BoltsCriticalClean mating surfaces19 lb-ft · 26 Nm——Mounting BoltsCritical44 lb-ft · 60 Nm——Rocker Arm BoltsCriticalTighten with cam lobe pointing away22 lb-ft · 30 Nm——Sensor Bolts10 lb-ft · 14 Nm——Sensor Mounting Bolts10 lb-ft · 14 Nm——Spark Plugs - Aluminum HeadCriticalApply anti-seize to threads15 lb-ft · 20 Nm——Valve Cover BoltsTighten in sequence7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec