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Automotive Torque Specifications

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GM Full Size 1970-88

Engine

Chevrolet V-8
Component Torque
Camshaft Sprocket-to-Camshaft Bolts 20 ft. lbs.
Cylinder Head Bolts 65 ft. lbs.
Exhaust Manifold Bolts Inner 2 Bolts on 350 cu. in. Engine 30 ft. lbs.
All Others 20 ft. lbs.
Flywheel/Driveplate Bolts 60 ft. lbs.
Intake Manifold Bolts 30 ft. lbs.
Main Bearing Cap Bolts 70 ft. lbs.
Main Bearing Cap Bolts (Outer bolts on engines with four bolt main ) 65 ft. lbs.
Oil Pan Bolts 10 ft. lbs.
Oil Pump Cover Screws 8 ft. lbs.
Rear Oil Seal Housing Bolts ( When equipped ) 135 inch lbs.
Rocker Arm Cover Bolts 4 ft. lbs.
Rod Bearing Cap Nuts 45 ft. lbs.
Thermostat Housing-to-Intake Manifold Bolts 30 ft. lbs.
Timing Chain Cover Bolts 7 ft. lbs.
Vibration Damper-to-Crankshaft Bolt 60 ft. lbs.
Water Pump Mounting Bolts 30 ft. lbs.
 

Fig. 1 Cylinder head bolt torque sequence

Fig. 2 Intake manifold torque sequence

Fig. 3 Timing mark alignment

Fig. 4 Firing order and cylinder location

 

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