Torque Spec Database



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Engine Torque Specifications



Torque Specifications for GM 2.5L-151ci-S4



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: