Torque Spec Database



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Engine Torque Specifications



Torque Specifications for GM 4.3L-262ci-V6



Balance Shaft Sprocket  To  Balance Shaft
12 Ft-Lbs
144 In-Lbs
16.27 N-m
Years: All
Note: Vortec - Drive Gear Retaining Stud
Type: Stud Dim: Length: Head: Grade:



Balance Shaft Sprocket  To  Balance Shaft
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: All
Note: Vortec - Driven Gear Bolt - 2 Steps: 15 FtLbs; +35degs
Type: Bolt Dim: Length: Head: Hexagon Grade:



Connecting Rod  To  Engine Block
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: All
Note: Vortec - Rod Cap Nuts - 2 Steps: 20 FtLbs; +70degs
Type: Dim: Length: Head: Nut Grade:



Cover Plate  To  Transmission
46 Ft-Lbs
552 In-Lbs
62.37 N-m
Years: All
Note: Vortec - Torque Converter Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft  To  Engine Block
75 Ft-Lbs
900 In-Lbs
101.69 N-m
Years: -1994
Note: Vortec - Main Bearing Cap Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft  To  Engine Block
81 Ft-Lbs
972 In-Lbs
109.82 N-m
Years: 1995-1995
Note: Vortec - Main Bearing Cap Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft  To  Engine Block
77 Ft-Lbs
924 In-Lbs
104.4 N-m
Years: 1996-1998
Note: Vortec - Main Bearing Cap Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: 1999-
Note: Vortec - Main Bearing Cap Bolts - 2 Steps: 15 FtLbs; +75degs
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft Position Sensor  To  Engine Block
8 Ft-Lbs
96 In-Lbs
10.85 N-m
Years: -1998
Note: Vortec - CMFI/CSEFI Engine
Type: Bolt Dim: Length: Head: Hexagon Grade:



Crankshaft Position Sensor  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: 1999-
Note: Vortec - CMFI/CSEFI Engine
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Cylinder Head
65 Ft-Lbs
780 In-Lbs
88.13 N-m
Years: -1995
Note: Vortec - Head Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Cylinder Head
22 Ft-Lbs
264 In-Lbs
29.83 N-m
Years: 1996-
Note: Vortec - Head Bolts - LONG - 2 Steps: 22FtLbs; +75deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Cylinder Head
22 Ft-Lbs
264 In-Lbs
29.83 N-m
Years: 1996-
Note: Vortec - Head Bolts - MEDIUM - 2 Steps: 22FtLbs; +65deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Cylinder Head
22 Ft-Lbs
264 In-Lbs
29.83 N-m
Years: 1996-
Note: Vortec - Head Bolts - SHORT - 2 Steps: 22FtLbs; +55deg
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: Vortec - Oil Drain Plug
Type: Bolt Dim: Length: Head: Hexagon Grade:



Engine Block  To  Transmission
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: All
Note: Vortec - Engine Block to MANUAL Transmission Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Exhaust Manifold  To  Cylinder Head
22 Ft-Lbs
264 In-Lbs
29.83 N-m
Years: All
Note: Vortec - Exhaust Manifold - 2 Steps: 11 FtLbs; 22 FtLbs
Type: Bolt Dim: Length: Head: Nut Grade:



Exhaust Pipe  To  Exhaust Manifold
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: All
Note: Vortec - Exhaust Pipe to Exhaust Manifold Nuts
Type: Dim: Length: Head: Nut Grade:



Fan Blade  To  Fan Clutch
24 Ft-Lbs
288 In-Lbs
32.54 N-m
Years: All
Note: Vortec - Fan to Fan Clutch Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Fan Clutch  To  Water Pump
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: All
Note: Vortec - Fan Assembly to Water Pump Nut
Type: Dim: Length: Head: Nut Grade:



Flywheel  To  Crankshaft
75 Ft-Lbs
900 In-Lbs
101.69 N-m
Years: All
Note: Vortec - Flywheel/Driveplate to Crankshaft Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Idle Air Control Valve  To  Throttle Body
2.33 Ft-Lbs
28 In-Lbs
3.16 N-m
Years: All
Note: Vortec - IAC Valve Screws - CMFI/CSEFI Engine
Type: Dim: Length: Head: Grade:



Idle Air Control Valve  To  Throttle Body
13 Ft-Lbs
156 In-Lbs
17.63 N-m
Years: All
Note: Vortec - IAC Valve Screws - TBI Engine
Type: Dim: Length: Head: Grade:



Intake Manifold  To  Cylinder Head
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: -1995
Note: Vortec - Intake Manifold Bolts - VIN W - LOWER Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
10 Ft-Lbs
120 In-Lbs
13.56 N-m
Years: -1995
Note: Vortec - Intake Manifold Bolts - VIN W - UPPER Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: -1995
Note: Vortec - Intake Manifold Bolts - VIN Z - EXCEPT LOWER REAR
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: -1995
Note: Vortec - Intake Manifold Bolts - VIN Z - LOWER REAR ONLY
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
11 Ft-Lbs
132 In-Lbs
14.91 N-m
Years: 1996-
Note: Vortec - Intake Manifold - 3 Steps: 2 FtLbs; 9 FtLbs; 11 FtL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Line  To  Adapter
26 Ft-Lbs
312 In-Lbs
35.25 N-m
Years: All
Note: Vortec - Oil Cooler Line to Adapter Bolt
Type: Dim: Length: Head: Grade:



Oil Pan  To  Engine Block
8.33 Ft-Lbs
100 In-Lbs
11.3 N-m
Years: -1995
Note: Vortec - Oil Pan Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Pan  To  Engine Block
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: -1995
Note: Vortec - Oil Pan Nuts
Type: Stud Dim: Length: Head: Nut Grade:



Oil Pan  To  Engine Block
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: 1996-1998
Note: Vortec - Oil Pan Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Pan  To  Engine Block
18 Ft-Lbs
216 In-Lbs
24.41 N-m
Years: 1996-1998
Note: Vortec - Oil Pan Nuts
Type: Stud Dim: Length: Head: Nut Grade:



Oil Pan  To  Engine Block
18 Ft-Lbs
216 In-Lbs
24.41 N-m
Years: 1999-
Note: Vortec - Oil Pan Nuts/Bolts
Type: Bolt Dim: Length: Head: Nut Grade:



Oil Pump  To  Engine Block
65 Ft-Lbs
780 In-Lbs
88.13 N-m
Years: All
Note: Vortec - Oil Pump to Rear Main Cap Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Seal Retainer  To  Engine Block
11 Ft-Lbs
132 In-Lbs
14.91 N-m
Years: All
Note: Vortec - Rear Main Seal Retainer Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Rocker Arm  To  Cylinder Head
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: 2000-
Note: Vortec - Rocker Arm Bolt
Type: Dim: Length: Head: Grade:



Rocker Arm  To  Rocker Arm Stud
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: -1999
Note: Vortec - Rocker Arm to Rocker Arm Stud
Type: Stud Dim: Length: Head: Nut Grade:



Rocker Arm Stud  To  Cylinder Head
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: -1999
Note: Vortec - Rocker Arm Stud to Cylinder Head
Type: Stud Dim: Length: Head: Grade:



Spark Plug  To  Cylinder Head
11 Ft-Lbs
132 In-Lbs
14.91 N-m
Years: All
Note: Vortec - Spark Plug
Type: Dim: Length: Head: Hexagon Grade:



Thermostat Housing Cover  To  Thermostat Housing
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: Vortec - Thermostat Housing Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Throttle Body  To  Intake Manifold
12 Ft-Lbs
144 In-Lbs
16.27 N-m
Years: All
Note: Vortec - Throttle Body Bolts/Nuts
Type: Dim: Length: Head: Grade:



Thrust Plate  To  Engine Block
8.83 Ft-Lbs
106 In-Lbs
11.98 N-m
Years: All
Note: Vortec - Balance Shaft Retainer Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
10.33 Ft-Lbs
124 In-Lbs
14.01 N-m
Years: -1994
Note: Vortec - Timing Chain Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
8.83 Ft-Lbs
106 In-Lbs
11.98 N-m
Years: 1995-
Note: Vortec - Timing Chain Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Sprocket  To  Camshaft
21 Ft-Lbs
252 In-Lbs
28.47 N-m
Years: All
Note: Vortec - Camshaft Sprocket Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Torque Converter  To  Flywheel
46 Ft-Lbs
552 In-Lbs
62.37 N-m
Years: All
Note: Vortec - Torque Converter to Flywheel Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Cover  To  Cylinder Head
7.5 Ft-Lbs
90 In-Lbs
10.17 N-m
Years: -1995
Note: Vortec - Valve Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Cover  To  Cylinder Head
8.83 Ft-Lbs
106 In-Lbs
11.98 N-m
Years: 1996-
Note: Vortec - Valve Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Lifter Retainer  To  Cylinder Head
12 Ft-Lbs
144 In-Lbs
16.27 N-m
Years: All
Note: Vortec - Hydraulic Lifter Retainer Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Vibration Damper/Hub  To  Crankshaft
70 Ft-Lbs
840 In-Lbs
94.91 N-m
Years: All
Note: Vortec - Vibration Damper Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Water Pump  To  Engine Block
33 Ft-Lbs
396 In-Lbs
44.74 N-m
Years: All
Note: Vortec - Water Pump Attaching Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade: