Mopar Torque Values
HEMI 426
Fastener Type Torque Spec
Main cap bolts 100 ft.-lbs.
Main cap tie bolts 45 ft.-lbs.
Connecting rod bolts (7/16 in.) 75 ft.-lbs.
Cylinder head bolts (iron head) 70-75 ft.-lbs.*
Cylinder head bolts (aluminum head) 65-70 ft.-lbs.*
Camshaft cap screw (Street Hemi) 40 ft.-lbs.
Camshaft cap screw (Race Hemi) 75 ft.-lbs.
Rocker shaft bracket bolts 30 ft.-lbs. max
Harmonic damper bolt 135 ft.-lbs.
Flexplate bolts 70 ft.-lbs.
Torque converter to flexplate bolts 65 ft.-lbs.
Flywheel cap screws 70 ft.-lbs.
Clutch cover to flywheel bolts 30 ft.-lbs.
* follow factory torque sequence
BIG CHRYSLER 383, 400, 440 B/RB Engines
Fastener Type Torque Specs
Main cap bolts 85 ft.-lbs.
Connecting rod bolts (plain) 45 ft.-lbs.
Connecting rod bolts (heavy duty) 50-55 ft.-lbs.
Crankshaft rear bearing seal retainer bolts 30 ft.-lbs.
Cylinder head bolts 70 ft.-lbs.*
Rocker shaft bracket bolts 25 ft.-lbs.
Intake manifold bolts 40 ft.-lbs.
Oil pump cover bolt 10 ft.-lbs.
Oil pump attaching bolt 35 ft.-lbs.
Oil pan bolts 15 ft.-lbs.
Cam locking bolt 35 ft.-lbs.
Harmonic damper bolt 135 ft.-lbs.
Flywheel/flexplate bolts 55 ft.-lbs.
Flywheel housing to engine block bolts 50 ft.-lbs.
Flexplate to torque converter bolts 270 in.-lbs.
Water pump bolts 30 ft.-lbs.
Fuel pump bolt 30 ft.-lbs.
Starter mounting bolts 50 ft.-lbs.
Exhaust manifold nuts 30 ft.-lbs.
* follow factory torque sequence
SMALL CHRYSLER 273, 318, 340, 360 A Engine
Fastener Type Torque Spec
Main cap bolts 85 ft.-lbs.
Connecting rod bolts (plain) 45 ft.-lbs.
Cylinder head bolts, 273-318 85 ft.-lbs.*
Cylinder head bolts, 340-360 95 ft.-lbs.*
Rocker shaft bracket bolts 17 ft.-lbs.
Intake manifold bolts 35 ft.-lbs.
Oil pump cover bolt 95 in.-lbs.
Oil pump attaching bolt 35 ft.-lbs.
Oil pan bolts 15 ft.-lbs.
Cam locking bolt 35 ft.-lbs.
Cam thrust plate bolts 210 in.-lbs.
Harmonic damper bolt 135 ft.-lbs.
Flywheel/flexplate bolts 55 ft.-lbs.
Flywheel housing to engine block bolts 50 ft.-lbs.
Flexplate to torque converter bolts 270 in.-lbs.
Clutch housing bolts 30 ft.-lbs.
Front cover bolts 30 ft.-lbs.
Water pump bolts 30 ft.-lbs.
* Follow factory torque sequence