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Torque Specifications

TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
A/C Compressor-To-Block 36 (49)
A/C Compressor-To-Oil Filter Bracket 22 (29)
Air Intake Chamber Bolt/Nut 13 (18)
Camshaft Bearing Cap Bolt (1) 12 (16)
Camshaft Sprocket Bolt 80 (109)
Catalytic Converter-To-Exhaust Manifold Nut 46 (62)
Catalytic Converter-To-Exhaust Pipe Bolt 32 (43)
Connecting Rod Cap Bolt
Step 1 18 (24)
Step 2 Additional 90 Degrees
Coolant Inlet Housing Bolt 13 (18)
Coolant Inlet Housing Plug 32 (43)
Crankshaft Pulley Bolt 181 (245)
Crossmember Bolt/Nut
Bolt 19 (26)
Nut (2)
Cylinder Head Bolt (3)
Step 1 29 (39)
Step 2 Additional 90 Degrees
Delivery Pipe Nut 13 (18)
Distributor Housing Bolt 13 (18)
Drive Belt Idler Pulley Bolt 27 (37)
Drive Belt Tensioner Bolt/Nut 12 (16)
Drive Plate-To-Crankshaft Bolt 61 (83)
Drive Shaft Center Bearing Bolt
LS400 27 (37)
SC400 36 (49)
Drive Shaft Flange Bolt
LS400 53 (72)
SC400 58 (79)
EGR Pipe Bolt/Nut 13 (18)
EGR Valve Adapter Bolt/Nut 13 (18)
EGR Valve Bolt/Nut 13 (18)
Engine Hanger Bolt 27 (37)
Engine Mount-To-Crossmember Nut 43 (58)
Engine Mount-To-Cylinder Block 27 (36)
Exhaust Manifold Nut 33 (45)
Fan Bracket Bolt/Nut (LS400 Only)
12-mm Head 12 (16)
All Others 24 (33)
Fan Clutch Assembly Nut (LS400 Only) 16 (22)
Front Coolant By-Pass Housing Nut 13 (18)
Hydraulic Pump Bolt/Nut (SC400 Only)
12-mm Head 12 (16)
All Others 22 (30)
Intake Manifold Bolt/Nut 13 (18)
Knock Sensor 33 (45)
Main Bearing Cap
Side Bolt (4) 36 (49)
Nut (5)
Step 1 20 (27)
Step 2 Additional 90 Degrees
Main Bearing Stud-To-Cylinder Block 11 (15)
No. 1 & No. 2 Idler Pulley Bolt 25 (34)
Oil Filter Bracket Bolt/Nut 13 (18)
Oil Pan
No. 1 Oil Pan Bolt/Nut
LS400
10-mm Head (6)
12-mm Head 21 (28)
SC400
12-mm Head (6)
14-mm Head 20 (27)
No. 2 Oil Pan Bolt/Nut (6)
Oil Pump-To-Cylinder Block Bolt
12-mm Head 12 (16)
14-mm Head 22 (30)
Power Steering Pump
Bolt 29 (39)
Nut 32 (43)
Rear Coolant By-Pass Housing Nut 13 (18)
Spark Plug 13 (18)
Throttle Body Bolt/Nut 13 (18)
Timing Belt Tensioner Bolt 20 (27)
Torque Converter-To-Drive Plate Bolt 30 (41)
Water Pump Bolt/Nut 13 (18)
INCH Lbs. (N.m) 
Baffle Plate Bolt/Nut 69 (7.8)
Center Floor Crossmember Brace Bolt/Nut 115 (13.0)
Crankshaft Position Sensor Bolt 57 (6.4)
Crankshaft Rear Oil Seal Housing Bolt 69 (7.8)
Distributor Cap Bolt 34 (3.8)
Distributor Rotor Bolt 34 (3.8)
Oil Level Sensor Bolt (SC400 Only) 48 (5.4)
Oil Pump Cover Bolt 89 (10.0)
Pick-Up Tube Bolt/Nut 69 (7.8)
Timing Belt Rear Plate Bolt 69 (7.8)
Valve Cover Bolt 52 (5.9)
(1) Tighten bolts to specification in sequence. See Figure.
(2) Tighten to 115 INCH lbs. (13.0 N.m).
(3) Tighten bolts to specification in sequence. See Figure.
(4) Tighten main bearing cap nuts before tightening bolts. Bolts are located along outside of cylinder block.
(5) Tighten nuts to specification in sequence. See Figure.
(6) Tighten to 69 INCH lbs. (7.8 N.m).