Automotive Engine Torque Specs

Torque Specifications for
GM 2.5L-151ci-S4-IRON-DUKE

Alternator To Cylinder Head

33 Ft-Lbs

396 In-Lbs

44.74 N-m

Years: All

Note: Iron Duke - Pivot Mounting Bolt to Head

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Alternator To Engine Block

20 Ft-Lbs

240 In-Lbs

27.12 N-m

Years: All

Note: Iron Duke - Adjusting Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Alternator To Engine Block

28 Ft-Lbs

336 In-Lbs

37.96 N-m

Years: All

Note: Iron Duke - Mounting Bracket to Engine Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Alternator To Engine Block

28 Ft-Lbs

336 In-Lbs

37.96 N-m

Years: All

Note: Iron Duke - Pivot Bolt or Nut

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Bell Housing To Engine Block

54 Ft-Lbs

648 In-Lbs

73.21 N-m

Years: All

Note: Iron Duke - Clutch Housing to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Bracket/Stay To Timing Chain/Belt Cover

7 Ft-Lbs

84 In-Lbs

9.49 N-m

Years: All

Note: Iron Duke - Idler Pulley Bracket to Front Cover Nut

Type:

Dim:

Length:

Head: Nut

Grade:

Carburetor To Intake Manifold

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: Iron Duke - Carburetor Mounting Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Connecting Rod To Crankshaft

30 Ft-Lbs

360 In-Lbs

40.67 N-m

Years: All

Note: Iron Duke - Connecting Rod Nuts

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Cover Plate To Engine Block

6.67 Ft-Lbs

80 In-Lbs

9.04 N-m

Years: All

Note: Iron Duke - Pushrod Cover to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Crankshaft To Engine Block

65 Ft-Lbs

780 In-Lbs

88.13 N-m

Years: All

Note: Iron Duke - Main Bearing Cap Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Cylinder Head To Engine Block

92 Ft-Lbs

1104 In-Lbs

124.74 N-m

Years: All

Note: Iron Duke - Cylinder Head Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Distributor Clamp To Engine Block

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: Iron Duke - Distributor Clamp Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Drain Plug To Oil Pan

25 Ft-Lbs

300 In-Lbs

33.9 N-m

Years: All

Note: Iron Duke - Oil Drain Plug

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Exhaust Manifold To Cylinder Head

39 Ft-Lbs

468 In-Lbs

52.88 N-m

Years: All

Note: Iron Duke - Exhaust Manifold Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Exhaust Pipe To Exhaust Manifold

35 Ft-Lbs

420 In-Lbs

47.45 N-m

Years: All

Note: Iron Duke - Exhaust Pipe to Exhaust Manifold

Type: Bolt

Dim:

Length:

Head: Nut

Grade:

Fan Blade To Water Pump

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: Iron Duke - Fan/Pulley to Water Pump

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Flexplate/Driveplate To Crankshaft

45 Ft-Lbs

540 In-Lbs

61.01 N-m

Years: All

Note: Iron Duke - Driveplate Ring Gear to Crankshaft Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Flywheel To Crankshaft

68 Ft-Lbs

816 In-Lbs

92.2 N-m

Years: All

Note: Iron Duke - Flywheel to Crankshaft Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Fuel Pump To Engine Block

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: Iron Duke - Fuel Pump to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Intake Manifold To Cylinder Head

37 Ft-Lbs

444 In-Lbs

50.17 N-m

Years: All

Note: Iron Duke - Intake Manifold to Cylinder Head

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pan To Engine Block

3.75 Ft-Lbs

45 In-Lbs

5.09 N-m

Years: All

Note: Iron Duke - Oil Pan Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pickup Tube To Engine Block

28 Ft-Lbs

336 In-Lbs

37.96 N-m

Years: All

Note: Iron Duke - Oil Screen Support Nut

Type:

Dim:

Length:

Head: Nut

Grade:

Oil Pump To Engine Block

10 Ft-Lbs

120 In-Lbs

13.56 N-m

Years: All

Note: Iron Duke - Oil Pump to Drive Shaft Plate Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pump To Engine Block

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: Iron Duke - Oil Pump to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Oil Pump Cover To Oil Pump

9 Ft-Lbs

108 In-Lbs

12.2 N-m

Years: All

Note: Iron Duke - Oil Pump Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Pressure Plate To Flywheel

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: Iron Duke - Pressure Plate to Flywheel

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Pulley To Alternator

50 Ft-Lbs

600 In-Lbs

67.79 N-m

Years: All

Note: Iron Duke - Alternator Pulley Nut

Type:

Dim:

Length:

Head: Nut

Grade:

Pulley To Vibration Damper/Hub

25 Ft-Lbs

300 In-Lbs

33.9 N-m

Years: All

Note: Iron Duke - Pulley to Crankshaft Hub Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Pulley To Water Pump

18 Ft-Lbs

216 In-Lbs

24.4 N-m

Years: All

Note: Iron Duke - Fan/Pulley to Water Pump

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Pulley To Bracket/Stay

33 Ft-Lbs

396 In-Lbs

44.74 N-m

Years: All

Note: Iron Duke - Idler Pulley Bearing Shaft to Bracket Nut

Type:

Dim:

Length:

Head: Nut

Grade:

Rocker Arm To Cylinder Head

20 Ft-Lbs

240 In-Lbs

27.12 N-m

Years: All

Note: Iron Duke - Rocker Arm Cap Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Spark Plug To Cylinder Head

20 Ft-Lbs

240 In-Lbs

27.12 N-m

Years: All

Note: Iron Duke - Spark Plug

Type:

Dim:

Length:

Head:

Grade:

Starter To Engine Block

17 Ft-Lbs

204 In-Lbs

23.05 N-m

Years: All

Note: Iron Duke - Starter to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Thermostat Housing To Cylinder Head

22 Ft-Lbs

264 In-Lbs

29.83 N-m

Years: All

Note: Iron Duke - Thermostat Housing to Cylinder Head Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Thermostat Housing Cover To Thermostat Housing

17 Ft-Lbs

204 In-Lbs

23.05 N-m

Years: All

Note: Iron Duke - Water Outlet Housing Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Thrust Plate To Engine Block

6.67 Ft-Lbs

80 In-Lbs

9.04 N-m

Years: All

Note: Iron Duke - Camshaft Thrust Plate to Engine Block

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Cover To Engine Block

6.67 Ft-Lbs

80 In-Lbs

9.04 N-m

Years: All

Note: Iron Duke - Timing Case Cover to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Timing Chain/Belt Cover To Timing Chain/Belt Cover

3.75 Ft-Lbs

45 In-Lbs

5.09 N-m

Years: All

Note: Iron Duke - Timing Case Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Torque Converter To Flexplate/Driveplate

40 Ft-Lbs

480 In-Lbs

54.23 N-m

Years: All

Note: Iron Duke - Torque Converter to Driveplate Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Valve Cover To Cylinder Head

7 Ft-Lbs

84 In-Lbs

9.49 N-m

Years: All

Note: Iron Duke - Cylinder Head Cover Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Vibration Damper/Hub To Crankshaft

160 Ft-Lbs

1920 In-Lbs

216.93 N-m

Years: All

Note: Iron Duke - Crankshaft Pulley Hub Bolt

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Water Adapter/Connector To Intake Manifold

15 Ft-Lbs

180 In-Lbs

20.34 N-m

Years: All

Note: Iron Duke - Heater Hose Adapter

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade:

Water Pump To Engine Block

17 Ft-Lbs

204 In-Lbs

23.05 N-m

Years: All

Note: Iron Duke - Water Pump to Engine Block Bolts

Type: Bolt

Dim:

Length:

Head: Hexagon

Grade: