GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications w/454 or 502

Application

Specification

Metric

English

* Torque Sequence Required -- Refer to Fastener Tightening Sequence .

Camshaft Retainer Bolt

14N·m

10 lb ft

Camshaft Sprocket Bolt

34N·m

25 lb ft

Connecting Rod Nut

95N·m

70 lb ft

Crankshaft Balancer Bolt

149N·m

110 lb ft

Crankshaft Bearing Cap Bolt and Stud

100N·m

135 lb ft

Crankshaft Rear Oil Seal Housing Nut/Bolt

11N·m

15 lb ft

Cylinder Head Bolts - Long/Short*

First Pass

34/27N·m

25/20 lb ft

Second Pass

68/54N·m

50/40 lb ft

Final Pass

102/88N·m

75/65 lb ft

Distributor Bolt

25N·m

18 lb ft

Engine Block Oil Gallery Plug

20N·m

15 lb ft

Engine Front Cover Bolt Screw

12N·m

106 lb in

Flywheel Bolt

90N·m

65 lb ft

Intake Manifold Bolt*

First Pass

14N·m

10 lb ft

Second Pass

34N·m

25 lb ft

Oil Filter Adapter Bolt

25N·m

18 lb ft

Oil Level Indicator Tube Bolt

12N·m

106 lb in

Oil Pan Assembly Bolt

25N·m

18 lb ft

Oil Baffle Nut

40N·m

30 lb ft

Oil Pan Drain Plug

20N·m

15 lb ft

Oil Pump Bolt To Rear Crankshaft Bearing Cap

90N·m

66 lb ft

Oil Pump Cover Bolt

12N·m

106 lb in

Rocker Arm Bolt

61N·m

45 lb ft

Spark Plug

30N·m

22 lb ft

Starter Motor Bolt

48N·m

35 lb ft

Valve Lifter Guide Retainer Bolt

25N·m

18 lb ft

Water Pump Bolt

40N·m

30 lb ft

Fastener Tightening Specifications w/572

Application

Specification

Metric

English

Notes

* Torque Sequence Required -- Refer to Fastener Tightening Sequence .

** For Cast Iron

Cam Sprocket Bolt

30N·m

65 lb ft

Apply Blue Loctite to thread

Cam Thrust Plate Bolt

88N·m

22 lb ft

Apply Blue Loctite to thread

Coolant plug, 3/4" NPT **

75N·m

55 lb ft

Apply Teflon Pipe Sealant to thread

Connecting Rod Nut

109N·m

80 lb ft

Apply 30 weight oil to thread

Cylinder Head *

95N·m

70 lb ft

Apply Moly-lube to thread

Damper Bolt

149N·m

110 lb ft

Apply Blue Loctite to thread

Flex Plate Bolt

88N·m

65 lb ft

Apply Blue Loctite to thread

Front Cover Bolt

14N·m

10 lb ft

Apply Blue Loctite to thread

Fuel Pump Cover Bolt

34N·m

25 lb ft

Apply Blue Loctite to thread

Galley Plug, 1/8" NPT **

20N·m

15 lb ft

Apply Teflon Pipe Sealant to thread

Galley Plug, 1/4" NPT **

27N·m

20 lb ft

Apply Teflon Pipe Sealant to thread

Galley Plug, 1/2" NPT **

54N·m

40 lb ft

Apply Teflon Pipe Sealant to thread

Lifter Retainer Bolt

24N·m

18 lb ft

Apply Blue Loctite to thread

Intake Manifold Bolt *

34N·m

25 lb ft

Apply Teflon Pipe Sealant to thread

Main Bolt (Inner/Outer) *

149N·m

110 lb ft

Apply 30 weight oil to thread

Oil Filter Adapter

68N·m

50 lb ft

Apply Blue Loctite to thread

Oil Pan Bolt

27N·m

20 lb ft

Apply Blue Loctite to thread

Oil Pump Bolt

88N·m

65 lb ft

Apply 30 weight oil to thread

Rocker Arm Stud

68N·m

50 lb ft

Apply Blue Loctite to thread

Rocker Cover Bolt

14N·m

10 lb ft

Apply 30 weight oil to thread

Spark Plug

34N·m

25 lb ft

Apply 30 weight oil to thread

Thermostat Housing

34N·m

25 lb ft

Apply Blue Loctite to thread

Valley Head Bolt

81N·m

60 lb ft

Apply Liquid Teflon to thread

Water Pump Bolt

41N·m

30 lb ft

Apply 30 weight oil to thread

Windage Tray Studs

41N·m

30 lb ft

Apply 30 weight oil to thread

Windage Tray Studs

149N·m

110 lb ft

Apply 30 weight oil to thread