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Torque Specifications

TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
Bellhousing Bolt 32 (43)
Camshaft Sprocket Bolt 21 (28)
Connecting Rod Cap Nut (1)
Crankshaft Damper Bolt 70 (95)
Cylinder Head Bolt (2)
Step 1 25 (34)
Step 2 45 (61)
Step 3 65 (88)
Exhaust Manifold Bolt
Center 2 26 (35)
All Others 20 (27)
Flywheel Bolt 75 (102)
Front Cover Bolt 10 (14)
Intake Manifold Bolt/Stud (VIN W)
Lower Manifold (3) 35 (47)
Upper Manifold (4)
Intake Manifold Bolt (VIN Z)
C, K & P Series (5) 35 (47)
G, L, M, S & T Series, Except Syclone & Typhoon (6)
Syclone & Typhoon (Lower) 35 (47)
Syclone & Typhoon (Upper) (7) 17 (23)
Main Bearing Cap Bolt 75 (102)
Oil Filter Adapter Bolt 15 (20)
Oil Pan Nut 17 (23)
Oil Pump Bolt 65 (88)
Rear Crankshaft Oil Seal Retainer Bolt 11 (15)
Throttle Body Bolts (Turbo) 17 (23)
Transmission & Torque Converter Housing Bolts (Turbo) 35 (47)
Torque Converter Bolts (Turbo) 46 (63)
Turbo Charger Outlet Pipe Bracket Nuts 41 (55)
Valve Lifter Retainer Bolt 12 (16)
Water Pump Bolt 30 (41)
INCH Lbs. (N.m) 
Oil Pan Bolt 97 (11)
Oil Pump Cover Bolt 80 (9)
Valve Cover Bolt 89 (10)
(1) Tighten nut to 20 ft. lbs. (27 N.m). On VIN W engine, tighten an additional 70 degrees. m). On VIN Z engine, tighten an additional 70 degrees.
(2) Apply GM(R) Sealant (1052080) to head bolt threads. Tighten bolts in sequence. See Fig 1 .
(3) Tighten bolts in sequence. See Figure .
(4) This tightening specification has been revised due to Technical Service Bulletin (TSB) 92-313-6E, dated October 9, 1992. Tighten bolts/studs to 88 INCH lbs. (10 N.m) in sequence. See Figure .
(5) Tighten bolts to specification in sequence. See Figure . Repeat tightening sequence.
(6) Tighten bolts to specification in sequence. See Figure .
(7) Tighten from the two middle bolts outward on each side.
Fig 1: Cylinder Head Bolt Tightening Sequence
G92446Courtesy of GENERAL MOTORS CORP.