GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications 6.2L LS3

Application

Specification

Metric

English

Camshaft Position (CMP) Sensor Bolt

12 N·m

106 lb in

CMP Sensor Wire Harness Bolt

12 N·m

106 lb in

Camshaft Retainer Bolts - Hex Head Bolts

25 N·m

18 lb ft

Camshaft Retainer Bolts - TORX® Head Bolts

15 N·m

11 lb ft

Camshaft Sprocket Bolt - First Pass

75 N·m

55 lb ft

Camshaft Sprocket Bolt - Final Pass

50 degrees

Clutch Pressure Plate Bolts

70 N·m

52 lb ft

Connecting Rod Bolts - First Pass

20 N·m

15 lb ft

Connecting Rod Bolts - Final Pass

85 degrees

Coolant Air Bleed Pipe and Cover Bolts

12 N·m

106 lb in

Coolant Temperature Sensor

20 N·m

15 lb ft

Crankshaft Balancer Bolt - First Pass

150 N·m

111 lb ft

Crankshaft Balancer Bolt - Second Pass

Loosen 360 degrees

Crankshaft Balancer Bolt - Third Pass

50 N·m

37 lb ft

Crankshaft Balancer Bolt - Final Pass

230 degrees

Crankshaft Bearing Cap M10 Bolts - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Bolts - Final Pass in Sequence

80 degrees

Crankshaft Bearing Cap M10 Studs - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Studs - Final Pass in Sequence

51 degrees

Crankshaft Bearing Cap M8 Bolts

25 N·m

18 lb ft

Crankshaft Oil Deflector Nuts

25 N·m

18 lb ft

Crankshaft Position (CKP) Sensor Bolt

25 N·m

18 lb ft

Crankshaft Rear Oil Seal Housing Bolts

30 N·m

22 lb ft

Cylinder Head M11 Bolts - First Pass in Sequence

30 N·m

22 lb ft

Cylinder Head M11 Bolts - Second Pass in Sequence

90 degrees

Cylinder Head M11 Bolts - Final Pass in Sequence

70 degrees

Cylinder Head M8 Bolts - in Sequence

30 N·m

22 lb ft

Cylinder Head Coolant Plug

20 N·m

15 lb ft

Engine Block Coolant Drain Hole Plug

60 N·m

44 lb ft

Engine Block Coolant Heater

50 N·m

37 lb ft

Engine Block Oil Gallery Plug

60 N·m

44 lb ft

Evaporative Emission (EVAP) Canister Purge Solenoid Valve Bolt

50 N·m

37 lb ft

Exhaust Manifold Bolts - First Pass

15 N·m

11 lb ft

Exhaust Manifold Bolts - Final Pass

20 N·m

15 lb ft

Exhaust Manifold Heat Shield Bolts

9 N·m

80 lb in

Exhaust Manifold Stud

20 N·m

15 lb ft

Flywheel Bolts - First Pass

20 N·m

15 lb ft

Flywheel Bolts - Second Pass

50 N·m

37 lb ft

Flywheel Bolts - Final Pass

100 N·m

74 lb ft

Front Cover Bolts

25 N·m

18 lb ft

Fuel Injection Fuel Rail Bolts

10 N·m

89 lb in

Ignition Coil Bracket-to-Valve Rocker Arm Cover Stud

12 N·m

106 lb in

Ignition Coil-to-Bracket Bolts

10 N·m

89 lb in

Intake Manifold Bolts - First Pass in Sequence

5 N·m

44 lb in

Intake Manifold Bolts - Final Pass in Sequence

10 N·m

89 lb in

J 41798 M8 Bolt

25 N·m

18 lb ft

J 41798 M10 Bolts

50 N·m

37 lb ft

Knock Sensor Bolts

20 N·m

15 lb ft

Motor Mount Bracket Bolts

50 N·m

37 lb ft

Oil Filter

30 N·m

22 lb ft

Oil Filter Fitting

55 N·m

40 lb ft

Oil Level Indicator Tube Bolt

25 N·m

18 lb ft

Oil Level Sensor

13 N·m

115 lb in

Oil Pan Closeout Cover Bolt - Left Side

9 N·m

80 lb in

Oil Pan Closeout Cover Bolt - Right Side

9 N·m

80 lb in

Oil Pan Cover Bolts

12 N·m

106 lb in

Oil Pan Drain Plug

25 N·m

18 lb ft

Oil Pan M6 Bolts - Oil Pan-to-Rear Oil Seal Housing

12 N·m

106 lb in

Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover

25 N·m

18 lb ft

Oil Pressure Sensor

35 N·m

26 lb ft

Oil Pump Cover Bolts

12 N·m

106 lb in

Oil Pump Relief Valve Plug

12 N·m

106 lb in

Oil Pump Screen Nuts

25 N·m

18 lb ft

Oil Pump Screen-to-Oil Pump Bolt

12 N·m

106 lb in

Oil Pump-to-Engine Block Bolts

25 N·m

18 lb ft

Spark Plugs

15 N·m

11 lb ft

Throttle Body Bolts

10 N·m

89 lb in

Timing Chain Tensioner Bolts

25 N·m

18 lb ft

Valley Cover Bolts

25 N·m

18 lb ft

Valve Lifter Guide Bolts

12 N·m

106 lb in

Valve Rocker Arm Bolts

30 N·m

22 lb ft

Valve Rocker Arm Cover Bolts

12 N·m

106 lb in

Water Inlet Housing Bolts

15 N·m

11 lb ft

Water Pump Bolts - First Pass

15 N·m

11 lb ft

Water Pump Bolts - Final Pass

30 N·m

22 lb ft

Fastener Tightening Specifications 7.0L LS7

Application

Specification

Metric

English

Camshaft Position (CMP) Sensor Bolt

12 N·m

106 lb in

Camshaft Retainer Bolts - Hex Head Bolts

25 N·m

18 lb ft

Camshaft Retainer Bolts - TORX® Head Bolts

15 N·m

11 lb ft

Camshaft Sprocket Bolts

25 N·m

18 lb ft

Clutch Pressure Plate Bolts

70 N·m

52 lb ft

Connecting Rod Bolts - First Pass

20 N·m

15 lb ft

Connecting Rod Bolts - Final Pass

110 degrees

Coolant Air Bleed Pipe and Cover Bolts

12 N·m

106 lb in

Coolant Temperature Sensor

20 N·m

15 lb ft

Crankshaft Balancer Bolt - First Pass

150 N·m

111 lb ft

Crankshaft Balancer Bolt - Second Pass

Loosen 360 degrees

Crankshaft Balancer Bolt - Third Pass

50 N·m

37 lb ft

Crankshaft Balancer Bolt - Final Pass

230 degrees

Crankshaft Bearing Cap M8 Bolts

25 N·m

18 lb ft

Crankshaft Bearing Cap M10 Bolts - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Bolts - Final Pass in Sequence

80 degrees

Crankshaft Bearing Cap M10 Studs - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Studs - Final Pass in Sequence

51 degrees

Crankshaft Oil Deflector Nuts

25 N·m

18 lb ft

Crankshaft Position (CKP) Sensor Bolt

25 N·m

18 lb ft

Crankshaft Rear Oil Seal Housing Bolts

30 N·m

22 lb ft

Cylinder Head Coolant Plug

20 N·m

15 lb ft

Cylinder Head M8 Bolts - in Sequence

30 N·m

22 lb ft

Cylinder Head M11 Bolts - First Pass in Sequence

30 N·m

22 lb ft

Cylinder Head M11 Bolts - Second Pass in Sequence

90 degrees

Cylinder Head M11 Bolts - Final Pass in Sequence

70 degrees

Engine Block Coolant Drain Hole Plug

60 N·m

44 lb ft

Engine Block Coolant Heater

50 N·m

37 lb ft

Engine Block Oil Gallery Plugs

60 N·m

44 lb ft

Engine Mount Bracket Bolts

50 N·m

37 lb ft

Engine Oil Tank Bolts

25 N·m

18 lb ft

Engine Oil Tank Bracket Bolts

25 N·m

18 lb ft

Engine Oil Tank Clamp Nut

21 turns

Engine Oil Tank Transfer Tube Fittings

35 N·m

25 lb ft

Evaporative (EVAP) Emission Canister Purge Solenoid Valve Bracket Bolt

50 N·m

37 lb ft

Exhaust Manifold Bolts - First Pass

15 N·m

11 lb ft

Exhaust Manifold Bolts - Final Pass

20 N·m

15 lb ft

Exhaust Manifold Heat Shield Bolts

9 N·m

80 lb in

Exhaust Manifold Studs

20 N·m

15 lb ft

Flywheel Bolts - First Pass

30 N·m

22 lb ft

Flywheel Bolts - Final Pass

40 degrees

Front Cover Bolts

25 N·m

18 lb ft

Fuel Injection Fuel Rail Bolts

10 N·m

89 lb in

Ignition Coil Bracket-to-Valve Rocker Arm Cover Studs

12 N·m

106 lb in

Ignition Coil-to-Bracket Bolts

10 N·m

89 lb in

Intake Manifold Bolts - First Pass in Sequence

5 N·m

44 lb in

Intake Manifold Bolts - Final Pass in Sequence

10 N·m

89 lb in

J 41798 M8 Bolt

25 N·m

18 lb ft

J 41798 M10 Bolts

50 N·m

37 lb ft

Knock Sensor Bolts

25 N·m

18 lb ft

Oil Filter

30 N·m

22 lb ft

Oil Filter Fitting

55 N·m

40 lb ft

Oil Pan Closeout Cover Bolt - Left Side

9 N·m

80 lb in

Oil Pan Closeout Cover Bolt - Right Side

9 N·m

80 lb in

Oil Pan Drain Plugs

25 N·m

18 lb ft

Oil Pan M6 Bolts - Oil Pan-to-Rear Oil Seal Housing

12 N·m

106 lb in

Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover

25 N·m

18 lb ft

Oil Pressure Sensor

35 N·m

26 lb ft

Oil Pump Cover Bolts

12 N·m

106 lb in

Oil Pump Relief Valve Plug

12 N·m

106 lb in

Oil Pump Suction Pipe Bolts

12 N·m

106 lb in

Oil Pump-to-Engine Block Bolts

25 N·m

18 lb ft

Spark Plugs

15 N·m

11 lb ft

Throttle Body Bolts

10 N·m

89 lb in

Timing Chain Dampener Bolts

25 N·m

18 lb ft

Valley Cover Bolts

25 N·m

18 lb ft

Valve Lifter Guide Bolts

12 N·m

106 lb in

Valve Rocker Arm Bolts

30 N·m

22 lb ft

Valve Rocker Arm Cover Bolts

12 N·m

106 lb in

Water Inlet Housing Bolts

15 N·m

11 lb ft

Water Pump Bolts - First Pass

15 N·m

11 lb ft

Water Pump Bolts - Final Pass

30 N·m

22 lb ft

Fastener Tightening Specifications 6.2L LS9

Application

Specification

Metric

English

Camshaft Position (CMP) Sensor Bolt

12 N·m

106 lb in

Camshaft Retainer Bolts - TORX® Head Bolts

15 N·m

11 lb ft

Camshaft Sprocket Bolts

30 N·m

22 lb ft

Clutch Pressure Plate Bolts

70 N·m

52 lb ft

Connecting Rod Bolts - First Pass

20 N·m

15 lb ft

Connecting Rod Bolts - Final Pass

110 degrees

Coolant Air Bleed Pipe Bolt

12 N·m

106 lb in

Coolant Temperature Sensor

20 N·m

15 lb ft

Crankshaft Balancer Bolt - First Pass

150 N·m

111 lb ft

Crankshaft Balancer Bolt - Second Pass - Loosen Bolt

360 degrees

Crankshaft Balancer Bolt - Third Pass

50 N·m

37 lb ft

Crankshaft Balancer Bolt - Final Pass

230 degrees

Crankshaft Bearing Cap M8 Bolts

25 N·m

18 lb ft

Crankshaft Bearing Cap M10 Bolts - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Bolts - Final Pass in Sequence

80 degrees

Crankshaft Bearing Cap M10 Studs - First Pass in Sequence

20 N·m

15 lb ft

Crankshaft Bearing Cap M10 Studs - Final Pass in Sequence

51 degrees

Crankshaft Oil Deflector Nuts

25 N·m

18 lb ft

Crankshaft Position (CKP) Sensor Bolt

25 N·m

18 lb ft

Crankshaft Rear Oil Seal Housing Bolts

30 N·m

22 lb ft

Cylinder Head Coolant Plug

20 N·m

15 lb ft

Cylinder Head M12 Bolts - First Pass in Sequence

20 N·m

15 lb ft

Cylinder Head M12 Bolts - Second Pass in Sequence

80 N·m

60 lb ft

Cylinder Head M12 Bolts - Third Pass in Sequence

90 degrees

Cylinder Head M12 Bolts - Final Pass in Sequence

45 degrees

Cylinder Head M8 Bolts - in Sequence

30 N·m

22 lb ft

Drive Belt Idler Pulley Bolts

50 N·m

37 lb ft

Drive Belt Tensioner Bolts

50 N·m

37 lb ft

Engine Block Coolant Drain Hole Plug

60 N·m

44 lb ft

Engine Block Coolant Heater

50 N·m

37 lb ft

Engine Block Oil Gallery Plug

60 N·m

44 lb ft

Engine Mount Bracket Bolts

100 N·m

74 lb ft

Engine Mount-to-Mount Bracket Nut

100 N·m

74 lb ft

Engine Oil Cooler Coolant Hose Connector

35 N·m

26 lb ft

Engine Oil Cooler Core-to-Housing Bolts

25 N·m

18 lb ft

Engine Oil Cooler-to-Oil Pan M6 Bolts

10 N·m

89 lb in

Engine Oil Cooler-to-Oil Pan M8 Bolts

25 N·m

18 lb ft

Engine Oil Tank Bolts

25 N·m

18 lb ft

Engine Oil Tank Bracket Bolts

25 N·m

18 lb ft

Engine Oil Tank Clamp Nut

21 turns

Engine Oil Tank Transfer Tube Fittings

35 N·m

26 lb ft

Engine Oil Temperature Sensor

20 N·m

15 lb ft

Evaporative Emission (EVAP) Canister Purge Solenoid Valve Bolt

10 N·m

89 lb in

Exhaust Manifold Bolts - First Pass

15 N·m

11 lb ft

Exhaust Manifold Bolts - Final Pass

20 N·m

15 lb ft

Exhaust Manifold Stud

20 N·m

15 lb ft

Flywheel Bolts - First Pass

20 N·m

15 lb ft

Flywheel Bolts - Second Pass

30 N·m

20 lb ft

Flywheel Bolts - Final Pass

40 degrees

Front Cover Bolts

30 N·m

22 lb ft

Fuel Injection Fuel Rail Bolt

10 N·m

89 lb in

Fuel Injection Fuel Rail Studs

10 N·m

89 lb in

Fuel Injector Wire Harness Bracket Bolt

--

--

Generator Bracket Bolt

50 N·m

37 lb ft

Ignition Coil -to-Valve Rocker Arm Cover Bolts

12 N·m

106 lb in

Inlet Air Temperature Sensor

20 N·m

15 lb ft

J 41798 M8 Bolt

25 N·m

18 lb ft

J 41798 M10 Bolts

50 N·m

37 lb ft

Knock Sensor Bolts

25 N·m

18 lb ft

Oil Filter

30 N·m

22 lb ft

Oil Filter Fitting

55 N·m

40 lb ft

Oil Pan Closeout Cover Bolt - Left Side

9 N·m

80 lb in

Oil Pan Closeout Cover Bolt - Right Side

9 N·m

80 lb in

Oil Pan Drain Plugs

25 N·m

18 lb ft

Oil Pan M6 Bolts - Oil Pan-to-Rear Oil Seal Housing

12 N·m

106 lb in

Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover

25 N·m

18 lb ft

Oil Pressure Sensor

20 N·m

15 lb ft

Oil Pump Cover Bolts

10 N·m

89 lb in

Oil Pump Relief Valve Plug

14 N·m

10 lb ft

Oil Pump Suction Pipe-to-Oil Pan Bolts

10 N·m

89 lb in

Oil Pump-to-Engine Block Bolts

25 N·m

18 lb ft

Piston Oil Nozzle Bolt

20 N·m

15 lb ft

Spark Plugs

20 N·m

15 lb ft

Supercharger Air Outlet Pressure Sensor Bolt

10 N·m

89 lb in

Supercharger Barometric Pressure Sensor Bolt

10 N·m

89 lb in

Supercharger Bypass Valve Actuator Bolts

25 N·m

18 lb ft

Supercharger Charge Air Bypass Regulator Solenoid Bolt

10 N·m

89 lb in

Supercharger Charge Air Cooler-to-Cover Bolts

10 N·m

89 lb in

Supercharger Inlet Air Pressure Sensor Bolt

10 N·m

89 lb in

Supercharger - Lower - Manifold-to-Cylinder Head Bolts-First Pass in Sequence

5 N·m

44 lb in

Supercharger - Lower - Manifold-to-Cylinder Head Bolts- Final Pass in Sequence

10 N·m

89 lb in

Supercharger - Upper - Charge Air Cooler Cover Bolts - First Pass in Sequence

5 N·m

44 lb in

Supercharger - Upper - Charge Air Cooler Cover Bolts - Final Pass in Sequence

10 N·m

89 lb in

Supercharger - Upper - Water Manifold-to-Cover Bolts

10 N·m

89 lb in

Throttle Body Bolts

10 N·m

89 lb in

Timing Chain Tensioner Bolts

25 N·m

18 lb ft

Valley Cover Bolts

25 N·m

18 lb ft

Valve Lifter Guide Bolts

12 N·m

106 lb in

Valve Rocker Arm Bolts

30 N·m

22 lb ft

Valve Rocker Arm Cover Bolts

12 N·m

106 lb in

Water Inlet Housing Bolts

15 N·m

11 lb ft

Water Pump Bolts - First Pass

15 N·m

11 lb ft

Water Pump Bolts - Final Pass

30 N·m

22 lb ft