Torque Specs

[AlbertaRedneck]

All Specs are in Foot Pounds unless specified. Newton Meter (NM) in Brackets.

[AlbertaRedneck]

Engine Mounts:

• Front Mount Bolt--44 (59)
• Front Mount Nut--33 (45)
• Braket-to-Block Bolt--38 (51)
• Through Bolt--70 (95)
• Through Bolt Nut--50 (68)
• Bellhousing To Engine Bolts 30 (40)
• Torque Convertor-To-Flexplate Bolts--46 (63)

Cylinder Head:
1988-1995:

• First--20 (25)
• Second--50 (68)
• Last--1/4 Turn or 90* More

1996-1998:

• First--20 (25)
• Second--55 (75)
• Last--1/4 Turn or 90* More

Exhaust Manifold:

• Exhaust Manifold Bolts--26 (35)

Flywheel & Ring Gear:

• All Models--65 (90)

Fuel System:

• IP Nuts--31 (42)
• IP Bolts--17 (23)
• IP to Injector Line--20 (25)
• IP Feed Line--20 (25)
• Fuel Filter Bolts--31 (42)
• Injectors--50 (70)

Glow Plug System:

• Glow Plugs--17 (23)
• Glow Plug Controller--25 (35)

Intake Manifold:

• 1988-1995 Vehicles--32 (42)
• 1996-1998 Vehicles--31 (42)
• Fuel Filter Bolts--31 (42)

Oil Pan:

• Rear Two Bolts--17 (23)
• All Others--89 in. Lbs (10)

Timing Chain Cover:

• Cover To Block--30-33 (40-45)
• Baffle--33 (45)

Thermostat Housing & Crossover:

• 1988-1991---35 (47)
• 1992-1998---31 (42)

Turbo:

• To Exhaust Manifold--43 (58)
• Oil Return Tube--19 (26)
• Oil Feed Tube--13 (17)
• Long Brace Bolt--37 (50)
• Long Brace Nut--26 (34)
• Short Brace Bolts--19 (25)

Valve Cover:

• Valve Cover Bolts--16 (22)

Water Pump:

• To Plate--31 (42)
• Three Bottom Right to Engine--31 (42)
• All Other to Engine--17 (23)

[AlbertaRedneck]

Water In Fuel Sensor--24 in.lbs. (31)
Baro Sensor--27 in.lbs. (35)

[Ratman]

Alberta, -are you absolutely sure the 12mm mains aren't 2-pass 55lb/ft then 90 degrees?

I seem to have some conflicting information, -just want to be sure.

BTW, nice work man!

[AlbertaRedneck]

Just looked in a GM service manual to check, and You are right. I missed the last row.
Typed most of it up last night at midnight. I quess I should proofread better

NOTE: Alberta Redneck edited/proofread everything and made the changes required. The information that you now see is correct. --JiFaire

[AlbertaRedneck]

Connecting Rod Nuts--48 (65)
Bellhousing Bolts--30 (40)
Coolant Drain Plug--18 (25)

Camshaft:

• Gear Bolt--125 (171)
• Thrust Bearing Bolts--17 (23)

Crankshaft:

• Bearing Cap 12mm Inner Bolts:
  
  • Make Two Passes--55 (75)
  • Final Pass--90* more
• Bearing Cap 12mm Outer Bolts:
  
  • Make Two Passes--48 (65)
  • Final Pass--90* more
• Bearing Cap 10mm Outer Bolts:
  
  • Single Pass--30 (40)
• Pulley Bolts--37 (50)
• CKP Sensor--17 (23)
• Harmonic Balancer Bolt--200 (270)

Oil System:

• Cooler Line Fittings--42 (57)
• Fill Neck Nuts--17 (23)
• Filter Adapter Bolt--47 (65)
• Gallery Plugs--25 (34)
• Oil Pan:
  
  • Two Rear Bolts--17 (23)
  • All Others--89 in.lbs. (10)
  • Drain Plug--18 (25)
• Oil Pump:
  
  • Bolt--65 (90)
  • Cover Screws--12 (16)
  • Driver Clamp Bolt--31 (42)

Valve Cover/Rocker Arm/Hyd Lifters:

• Cover Bolts--20 (27)
• Shaft Bolts--40 (55)
• Guide Plate Bolts--18 (26)

Cylinder Head:

• First Pass--20 (25)
• Second Pass--55 (75)
• Final Pass--90* More

Intake Manifold:

• Lower Bolts & Studs--31 (42)
• Center Bolts--17 (23)
• Upper Intake--17 (23)

[AlbertaRedneck]

Shifter Housing--89 in. lbs. (10)
NV4500 Trans to Housing--74 (100)

Clutch Bolts:

• 1988-1994---32 (43)
• 1995-1998---25 (34)

Clutch Housing:

• 1988-1990:
  
  • R/V---40 (54)
  • C/K---55 (75)
• 1991---31 (43)
• 1992-1994---29 (39)
• 1995-1998---23 (31)

Slave Cylinder:

• 1988-1995---13 (18)
• 1996-1998---71 in.lbs. (8)

[AlbertaRedneck]

Trans to Engine--35 (47)
Support Brace--35 (47)

Converter Bolts:

• 1988-1995---50 (68)
• 1996-1998---46 (63)

Crossmember Retaining Bolts:

• 1988-1990---35 (47)
• 1991-1998---56 (77)

88-94 T-case to Trans.--24 (32)
88-94 T-case to Frame--35 (47)
95-98 Adapt to T-case--33 (45)
95-98 Adapt to Trans.--33 (45)
Shift Linkage 4L80E--20 (30)

[AlbertaRedneck]

If a Mod could delete post 3,4,5, & 6, that would be great. I fixed them up, made all the editing the same, and combined what was missed. Thx

-- Done. The incorrect information is removed. -JiFaire

[Gunner0812]

Great job! Alberta. Your the man!!

[docdray]

two pics to help w/ cylinder head and intake for a 94

[Matt Bachand]

Anyone know starter bolt torque?

[Schwind]

thru-bolts are 40 ft. lbs. 54Nm
bracket bolts/nuts 30 ft. lbs. 41Nm

[Matt Bachand]

thru-bolts are 40 ft. lbs. 54Nm
bracket bolts/nuts 30 ft. lbs. 41Nm

Seems awefully high for the bracket bolts/nuts??