Automotive Engine Torque Specs

Torque Specifications for
GM 3.8L-231ci-V6-3800II

Balance Shaft Sprocket To Balance Shaft

16 Ft-Lbs

192 In-Lbs

21.69 N-m

Years: All

Note: 3800 II - Balance Shaft Gear Bolt - 2 Steps: 16FtLbs; +70deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bell Housing Cover To Bell Housing

5 Ft-Lbs

60 In-Lbs

6.78 N-m

Years: All

Note: 3800 II - Torque Converter Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To AC Compressor

74 Ft-Lbs

888 In-Lbs

100.33 N-m

Years: All

Note: 3800 II - A/C Compressor Mounting Bolts - FRONT NUTS

Type:

Dim:

Length:

Head: Nut

Grade:

Bracket/Stay To AC Compressor

59 Ft-Lbs

708 In-Lbs

79.99 N-m

Years: All

Note: 3800 II - A/C Compressor Mounting Bolts - LOWER BOLT

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To AC Compressor

23 Ft-Lbs

276 In-Lbs

31.18 N-m

Years: All

Note: 3800 II - A/C Compressor Mounting Bolts - REAR BRACKET

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To AC Compressor

36 Ft-Lbs

432 In-Lbs

48.81 N-m

Years: All

Note: 3800 II - A/C Compressor Mounting Bolts - UPPER BOLT

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To Alternator

36 Ft-Lbs

432 In-Lbs

48.81 N-m

Years: All

Note: 3800 II- Alternator Bracket to Alternator Thru Bolt

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Bracket/Stay To Cylinder Head

36 Ft-Lbs

432 In-Lbs

48.81 N-m

Years: All

Note: 3800 II - Alternator Bracket to Cylinder Head

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To Engine Block

70 Ft-Lbs

840 In-Lbs

94.91 N-m

Years: All

Note: 3800 II - FRONT Engine Mount Bracket to Engine Block

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To Intake Manifold

2.92 Ft-Lbs

35 In-Lbs

3.96 N-m

Years: All

Note: 3800 II - Throttle Cable Bracket

Type:

Dim:

Length:

Head:

Grade:

Camshaft Position Sensor To Timing Chain/Belt Cover

5 Ft-Lbs

60 In-Lbs

6.78 N-m

Years: All

Note: 3800 II - Camshaft Position Sensor

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Connecting Rod To Crankshaft

20 Ft-Lbs

240 In-Lbs

27.12 N-m

Years: All

Note: 3800 II - Rod Caps - 2 Steps: 20FtLbs; +50deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Crankshaft To Engine Block

30 Ft-Lbs

360 In-Lbs

40.67 N-m

Years: All

Note: 3800 II - Main Bearing CAP - 2 Steps: 30FtLbs; +110deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Crankshaft To Engine Block

11 Ft-Lbs

132 In-Lbs

14.91 N-m

Years: All

Note: 3800 II - Main Bearing SIDE - 2 Steps: 11FtLbs; +45deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Crankshaft Position Sensor To Timing Chain/Belt Cover

20 Ft-Lbs

240 In-Lbs

27.12 N-m

Years: All

Note: 3800 II - Crankshaft Position Sensor

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Crankshaft Position Sensor To Timing Chain/Belt Cover

3.33 Ft-Lbs

40 In-Lbs

4.52 N-m

Years: All

Note: 3800 II - Crankshaft Sensor Clamp Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Cylinder Head To Engine Block

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: 1995-1998

Note: 3800 II - 3 Steps: 37FtLbs; +130deg; +30deg(Center 4 Only)

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Cylinder Head To Engine Block

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: 1999-2005

Note: 3800 II - 2 Steps: 37FtLbs; +120deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Drain Plug To Engine Block

13 Ft-Lbs

156 In-Lbs

17.63 N-m

Years: All

Note: 3800 II - Engine Block/Coolant Plug

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Drain Plug To Oil Pan

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: 3800 II - Oil Drain Plug

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Drive Belt Tensioner To Engine Block

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: All

Note: 3800 II - Accessory Drive Belt Tensioner

Type:

Dim:

Length:

Head:

Grade:

EGR Pipe To Exhaust Manifold

21 Ft-Lbs

252 In-Lbs

28.47 N-m

Years: All

Note: 3800 II - EGR Pipe to Exhaust Manifold

Type:

Dim:

Length:

Head:

Grade:

EGR Pipe To EGR Valve

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: 3800 II - EGR Pipe to EGR Valve

Type:

Dim:

Length:

Head:

Grade:

EGR Valve To EGR Valve Adapter

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: 3800 II - EGR Valve to Intake Manifold Adapter

Type:

Dim:

Length:

Head:

Grade:

EGR Valve Adapter To Intake Manifold

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: All

Note: 3800 II - EGR Valve Adapter

Type:

Dim:

Length:

Head:

Grade:

Engine Block To Transaxle

55 Ft-Lbs

660 In-Lbs

74.57 N-m

Years: All

Note: 3800 II - Engine to Transaxle Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Engine Mount To Frame

50 Ft-Lbs

600 In-Lbs

67.79 N-m

Years: All

Note: 3800 II - FRONT Engine Mount to Frame Nuts

Type:

Dim:

Length:

Head: Nut

Grade:

Engine Mount To Bracket/Stay

32 Ft-Lbs

384 In-Lbs

43.39 N-m

Years: All

Note: 3800 II - FRONT Engine Mount to Engine Bracket Nuts

Type:

Dim:

Length:

Head: Nut

Grade:

Engine Temp Sensor To Intake Manifold

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: 3800 II - Coolant Temp Sensor

Type:

Dim:

Length:

Head: Hexagon

Grade:

Exhaust Manifold To Cylinder Head

8.83 Ft-Lbs

106 In-Lbs

11.98 N-m

Years: 1995-1998

Note: 3800 II - Exhaust Manifold to Cylinder Head

Type:

Dim:

Length:

Head:

Grade:

Exhaust Manifold To Cylinder Head

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: 1999-2005

Note: 3800 II - Exhaust Manifold to Cylinder Head - FRONT 2

Type:

Dim:

Length:

Head:

Grade:

Exhaust Manifold To Cylinder Head

13 Ft-Lbs

156 In-Lbs

17.63 N-m

Years: 1999-2005

Note: 3800 II - Exhaust Manifold to Cylinder Head - NOT FRONT 2

Type: Stud

Dim:

Length:

Head: Nut

Grade:

Exhaust Pipe To Exhaust Manifold

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: 3800 II - Exhaust Pipe to Exhaust Manifold Nuts

Type:

Dim:

Length:

Head: Nut

Grade:

Exhaust Pipe To Exhaust System

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: 3800 II - Exhaust Crossover Bolt/Studs

Type:

Dim:

Length:

Head:

Grade:

Flywheel To Crankshaft

11 Ft-Lbs

132 In-Lbs

14.91 N-m

Years: All

Note: 3800 II - Flywheel/DrivePlate - 2 Steps: 11FtLbs; +50deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Fuel Pressure Regulator To Fuel Line

13 Ft-Lbs

156 In-Lbs

17.63 N-m

Years: All

Note: 3800 II - Fuel Pressure Regulator to Fuel Pipe Nut

Type:

Dim:

Length:

Head: Nut

Grade:

Fuel Pressure Regulator To Bracket/Stay

6.67 Ft-Lbs

80 In-Lbs

9.04 N-m

Years: All

Note: 3800 II - Fuel Pressure Regulator Mounting Screw

Type: Screw

Dim:

Length:

Head:

Grade:

Fuel Rail To Intake Manifold

7.42 Ft-Lbs

89 In-Lbs

10.06 N-m

Years: All

Note: 3800 II - Fuel Rail Mounting Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Idle Air Control Valve To Throttle Body

2.25 Ft-Lbs

27 In-Lbs

3.05 N-m

Years: All

Note: 3800 II - Idle Air Control Valve to Throttle Body

Type:

Dim:

Length:

Head:

Grade:

Intake Manifold To Cylinder Head

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: All

Note: 3800 II - Intake Manifold to Cylinder Head Bolts/Nuts

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Intake Manifold Plenum To Intake Manifold

7.42 Ft-Lbs

89 In-Lbs

10.06 N-m

Years: All

Note: 3800 II - Intake Manifold (Upper) to Lower Manifold

Type:

Dim:

Length:

Head:

Grade:

Knock Sensor To Cylinder Head

14 Ft-Lbs

168 In-Lbs

18.98 N-m

Years: All

Note: 3800 II - Knock Sensor

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Dip Stick To Engine Block

14 Ft-Lbs

168 In-Lbs

18.98 N-m

Years: All

Note: 3800 II - Oil Dip Stick Tube

Type:

Dim:

Length:

Head:

Grade:

Oil Filter Adapter To Timing Chain/Belt Cover

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: 1995-1997

Note: 3800 II - Oil Filter Adapter to Timing Chain Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Filter Adapter To Timing Chain/Belt Cover

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: 1998-2005

Note: 3800 II - Oil Filter Adapter - 2 Steps: 11FtLbs; +50deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pan To Engine Block

10.42 Ft-Lbs

125 In-Lbs

14.13 N-m

Years: All

Note: 3800 II - Oil Pan Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pickup Tube To Engine Block

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: All

Note: 3800 II - Oil Pick Up Tube and Screen to Engine Block

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pump Cover To Timing Chain/Belt Cover

8.17 Ft-Lbs

98 In-Lbs

11.07 N-m

Years: All

Note: 3800 II - Use T-30 Torx Driver

Type: Screw

Dim:

Length:

Head:

Grade:

Oil Seal Retainer To Engine Block

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: 3800 II - Crankshaft Rear Oil Seal Housing Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oxygen Sensor (Lambda) To Exhaust Pipe

31 Ft-Lbs

372 In-Lbs

42.03 N-m

Years: All

Note: 3800 II - Oxygen Sensor

Type:

Dim:

Length:

Head: Hexagon

Grade:

Plug To Engine Block

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: 3800 II - Oil Gallery Plugs

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Pulley To Water Pump

9.67 Ft-Lbs

116 In-Lbs

13.11 N-m

Years: All

Note: 3800 II - Water Pump Pulley Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Rocker Arm To Cylinder Head

11 Ft-Lbs

132 In-Lbs

14.91 N-m

Years: All

Note: 3800 II - Rocker Arm Pivot Bolts - 2 Steps: 11FtLbs; +90deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Spark Plug To Cylinder Head

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: 3800 II - Spark Plug

Type:

Dim:

Length:

Head: Hexagon

Grade:

Starter To Transaxle

32 Ft-Lbs

384 In-Lbs

43.39 N-m

Years: All

Note: 3800 II - Starter Motor

Type:

Dim:

Length:

Head:

Grade:

Supercharger To Intake Manifold

17 Ft-Lbs

204 In-Lbs

23.05 N-m

Years: All

Note: 3800/L67 - Supercharger to Lower Intake Manifold

Type:

Dim:

Length:

Head:

Grade:

Throttle Body To Intake Manifold

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: 3800 II - Throttle Body Bolts/Nuts

Type:

Dim:

Length:

Head:

Grade:

Thrust Plate To Engine Block

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: 3800 II - Balance Shaft Retainer

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Cover To Engine Block

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: 1995-1998

Note: 3800 II - 2 Steps: 11FtLbs; +40deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Cover To Engine Block

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: 1999-2005

Note: 3800 II - 2 Steps: 15FtLbs; +40deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Sprocket To Camshaft

74 Ft-Lbs

888 In-Lbs

100.33 N-m

Years: All

Note: 3800 II - Camshaft Sprocket - 2 Steps: 74FtLbs; +90deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Tensioner To Engine Block

16 Ft-Lbs

192 In-Lbs

21.69 N-m

Years: All

Note: 3800 II - Timing Chain Damper Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Torque Converter To Flexplate/Driveplate

46 Ft-Lbs

552 In-Lbs

62.37 N-m

Years: All

Note: 3800 II - Torque Converter to Flexplate

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Torque Strut To Bracket/Stay

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: All

Note: 3800 II - Engine Torque Strut Mount Thru Bolts

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Valve Cover To Cylinder Head

7.42 Ft-Lbs

89 In-Lbs

10.06 N-m

Years: All

Note: 3800 II - Valve Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Valve Lifter Guide To Engine Block

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: 3800 II - Valve Lifter Guide Bolts (4)

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Vibration Damper/Hub To Crankshaft

111 Ft-Lbs

1332 In-Lbs

150.5 N-m

Years: 1995-1998

Note: 3800 II - Crankshaft Balancer - 2 Steps: 111FtLbs; +76deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Vibration Damper/Hub To Crankshaft

111 Ft-Lbs

1332 In-Lbs

150.5 N-m

Years: 1999-2005

Note: 3800 II - Crankshaft Balancer - 2 Steps: 111FtLbs; +114deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Water Adapter/Connector To Intake Manifold

11 Ft-Lbs

132 In-Lbs

14.91 N-m

Years: All

Note: 3800 II - Heater Hose Adapter to Intake Manifold

Type:

Dim:

Length:

Head:

Grade:

Water Pump To Engine Block

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: 3800 II - LONG Bolts - 2 Steps: 15FtLbs; +40deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Water Pump To Engine Block

11 Ft-Lbs

132 In-Lbs

14.92 N-m

Years: All

Note: 3800 II - SHORT Bolts - 2 Steps: 11FtLbs; +80deg

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade: