Document ID: 2285881                                                                                                   Page 1 of 6
2016 Chevrolet SS   |                               | Engine/Propulsion | Engine Mechanical - 6.2L LS3 |
                           SS Sedan Service Manual 8735925                                                     Specifications   |
                                                  Document ID: 2285881
 Fastener Specifications (LS3)
                                        Fastener Tightening Specifications
                                                                                          Specification
                               Application                                      Metric                English
  A/C Compressor Bracket to Engine Block Retaining
                                                                                58 Y                     43 lb ft
  Bolt
  A/C Compressor to A/C Compressor Bracket Retaining
                                                                                22 Y                     16 lb ft
  Bolt
  A/C Drive Belt Tensioner Pulley to A/C Drive Belt
                                                                                50 Y                     37 lb ft
  Tensioner Retaining Bolt
  A/C Drive Belt Tensioner to A/C Compressor Bracket
                                                                                22 Y                     16 lb ft
  Retaining Bolt
  A/C Suction/Discharge Pipe Pad to A/C Compressor
                                                                                16 Y                     12 lb ft
  Retaining Bolt
  Air Cleaner Inlet Duct to Throttle Body Hose Clamp                             7Y                      62 lb in
  Automatic Transmission Cooler Pipe Clamp to A/C
                                                                                22 Y                     16 lb ft
  Compressor Bracket Retaining Bolt
  Camshaft Position (CMP) Sensor to Engine Front Cover
                                                                                 9Y                      80 lb in
  Retaining Bolt
  Camshaft Retainer to Engine Block Retaining Bolt                              25 Y                     18 lb ft
  Camshaft Sprocket to Camshaft Retaining Bolt (L98, LS3, L76, L77)
       • First Pass                                                             75 Y                     55 lb ft
       • Second Pass                                                                      + 50 Degrees
  Close Out Cover to Engine Block Retaining Bolt Left                           10 Y                     89lb in
  Close Out Cover to Engine Block Retaining Bolt Right                          10 Y                     89lb in
  Clutch Pressure Plate to Flywheel Retaining Bolt
                                                                                15 Y                     11 lb ft
       • First Pass                         © 2017 General Motors. All rights reserved.
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Document ID: 2285881                                                                                                Page 2 of 6
                                                                                     Specification
                           Application                                       Metric                  English
       • Second Pass                                                         35 Y                     26 lb ft
       • Third Pass                                                          55 Y                     41 lb ft
       • Final Pass                                                          70 Y                     52 lb ft
  Connecting Bearing Cap to Connecting Rod Retaining Bolt (L98, LS3, L76, L77)
       • First Pass                                                          20 Y                     15 lb ft
       • Second Pass                                                                  + 85 Degrees
  Coolant Air Bleed Pipe and Hole Cover to Cylinder
                                                                             12 Y                    106 lb in
  Head Retaining Bolt
  Coolant Temperature Sensor                                                 20 Y                     15 lb ft
  Crankshaft Balancer to Crankshaft Retaining Bolt
       • First Pass                                                          150 Y                   110 lb ft
       • Second Pass                                                              Loosen 360 Degrees
       • Third Pass                                                          80 Y                     59 lb ft
       • Fourth Pass (Bolt with flanged head.)                                       + 125 Degrees
       • Fourth Pass (Bolt with retained rotating washer.)                           + 200 Degrees
  Crankshaft Bearing Cap to Engine Block Side Retaining
                                                                             25 Y                     18 lb ft
  Bolt (M8)
  Crankshaft Bearing Cap to Engine Block Retaining Bolt (M10)
                                                                             20 Y                     15 lb ft
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Document ID: 2285881                                                                                                Page 3 of 6
                                                                                     Specification
                           Application                                       Metric                  English
       • First Pass in Sequence
       • Second Pass in Sequence                                                      + 80 Degrees
  Crankshaft Bearing to Engine Block Retaining Stud (M10)
       • First Pass in Sequence                                              20 Y                     15 lb ft
       • Second Pass in Sequence                                                      + 51 Degrees
  Crankshaft Oil Deflector to Oil Pan Retaining Nut                          10 Y                    89 lb in
  Crankshaft Position (CKP) Sensor to Engine Block
                                                                             25 Y                     18 lb ft
  Retaining Bolt
  Crankshaft Rear Oil Seal Housing to Engine Block
                                                                             30 Y                     22 lb ft
  Retaining Bolt
  Cylinder Head Coolant Plug to Cylinder Head                                20 Y                     15 lb ft
  Cylinder Head to Engine Block Retaining Bolt (M8) - in
                                                                             30 Y                     22 lb ft
  sequence
  Cylinder Head to Engine Block Retaining Bolt (M11)
       • First Pass in sequence                                              30 Y                     22 lb ft
       • Second Pass in sequence                                                      + 90 Degrees
       • Third Pass in sequence                                                       + 70 Degrees
  Engine Block Coolant Drain Hole Plug                                       60 Y                     44 lb ft
  Engine Block Coolant Heater (LS3)                                          50 Y                     37 lb ft
  Engine Block Oil Gallery Plug                                              60 Y                     44 lb ft
  Engine Mount Bracket to Engine Block Retaining Bolt                        58 Y                     43 lb ft
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Document ID: 2285881                                                                                                Page 4 of 6
                                                                                     Specification
                           Application                                       Metric                  English
  Evaporative Emission (EVAP) Canister Purge Solenoid                        20 Y                     15 lb ft
  Valve Bracket to Cylinder Head Retaining Bolt
  Exhaust Manifold to Cylinder Head Retaining Bolt
       • First Pass                                                          15 Y                     11 lb ft
       • Second Pass                                                         20 Y                     15 lb ft
  Exhaust Manifold Heat Shield to Exhaust Manifold
                                                                             10 Y                    89 lb in
  Retaining Bolt
  Flywheel to Crankshaft Retaining Bolt (L98, LS3, L76, L77)
       • First Pass                                                          20 Y                     15 lb ft
       • Second Pass                                                         50 Y                     37 lb ft
       • Third Pass                                                          100 Y                    74 lb ft
  Front Cover to Engine Block Retaining Bolt                                 25 Y                     18 lb ft
  Fuel Injection Fuel Rail to Inlet Manifold Retaining Bolt                  10 Y                    89 lb in
  Ignition Coil Bracket to Valve Rocker Arm Cover Stud                       12 Y                    106 lb in
  Ignition Coil to Ignition Coil Bracket Retaining Bolt                      10 Y                    89 lb in
  Intake Manifold to Cylinder Head Retaining Bolt
       • First Pass in sequence                                               5Y                     44 lb in
       • Second Pass in sequence                                             10 Y                    89 lb in
  J41798 M10 Bolt                                                            50 Y                     37 lb ft
  J41798 M8 Bolt                                                             25 Y                     18 lb ft
  Knock Sensor to Engine Block Retaining Bolt                                25 Y                     18 lb ft
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Document ID: 2285881                                                                                                Page 5 of 6
                                                                                     Specification
                           Application                                       Metric                  English
                                                                       3/4 to 1 full turn after gasket makes
  Oil Filter                                                          contact with the sealing surface on the
                                                                               filter mounting flange
  Oil Filter Adapter                                                         55 Y                     41 lb ft
  Oil Level Indicator Tube to Cylinder Head Retaining
                                                                             25 Y                     18 lb ft
  Bolt (L98, LS3, L76, L77)
  Oil Level Sensor                                                           20 Y                     15 lb ft
  Oil Pan Baffle to Oil Pan Retaining Bolt                                   12 Y                    106 lb in
  Oil Pan Cover to Oil Pan Retaining Bolt                                    12 Y                    106 lb in
  Oil Pan Drain Plug                                                         25 Y                     18 lb ft
  Oil Pan to Rear Oil Seal Housing Retaining Bolt (M6)                       12 Y                    106 lb in
  Oil Pan to Engine Block Retaining Bolt (M8)                                25 Y                     18 lb ft
  Oil Pan to Front Cover Retaining Bolt (M8)                                 25 Y                     18 lb ft
  Oil Pressure Sensor                                                        35 Y                     26 lb ft
  Oil Pump Cover to Oil Pump Retaining Bolt                                  12 Y                    106 lb in
  Oil Pressure Relief Valve Plug to Oil Pump                                 14 Y                    124 lb in
  Oil Pump Screen to Crankshaft Oil Deflector Retaining
                                                                             10 Y                    89 lb in
  Nut
  Oil Pump Screen to Oil Pump Retaining Bolt                                  9Y                     80 lb in
  Oil Pump to Engine Block Retaining Bolt                                    25 Y                     18 lb ft
  Spark Plug
       • Fit New Spark Plug                                                  20 Y                     15 lb ft
       • Refit Existing Spark Plug                                           15 Y                     11 lb ft
  Throttle Body to Intake Manifold Retaining Bolt                            10 Y                    89 lb in
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Document ID: 2285881                                                                                                Page 6 of 6
                                                                                     Specification
                           Application                                       Metric                  English
  Timing Chain Tensioner to Engine Block Retaining Bolt                      25 Y                     18 lb ft
  Valley Cover to Engine Block Retaining Bolt                                25 Y                     18 lb ft
  Valve Lifter Guide to Engine Block Retaining Bolt                          12 Y                    106 lb in
  Valve Rocker Arm Cover to Cylinder Head Retaining
                                                                             12 Y                    106 lb in
  Bolt
  Valve Rocker Arm to Cylinder Head Retaining Bolt                           30 Y                     22 lb ft
  Thermostat Housing to Water Pump Retaining Bolt                            15 Y                     11 lb ft
  Water Pump to Engine Block Retaining Bolt
       • First Pass                                                          15 Y                     11 lb ft
       • Second Pass                                                         30 Y                     22 lb ft
https://gsi.ext.gm.com/gsi/showDoc.do?laborOpCode=&docSyskey=2285881&cellId=144247&pubObjSyskey=9595256&from=sm&p... 2/16/2017