Torque specifications are for stock factory type bolts with light engine oil applied to the threads and the underside of the bolt head. Other lubrications offer reduced friction and increased bolt tension, and will affect the torque figure. If using aftermarket performance bolts, like ARP, you should follow the recommended torque specifications of the aftermarket bolts.
Fastener
Torque
Thread Size
Camshaft Lockbolt
35
7/16-14
Carburetor to Manifold Nut
7
5/16-24
Clutch Housing Bolt
30
3/8-16
Connecting Rod Nut – Plain
45
3/8-24
Crankshaft Bolt (Vibration Damper)
135
3/4-16
Cylinder Head Bolt 273-318
85
1/2-13
Cylinder Head Bolt 340-360
95
1/2-13
Flywheel Cover Bolt
100 in/lbs
1/4-20
Flywheel Housing to Block Bolt
50
Flywheel to Crankshaft Bolt
55
7/16-20
Fuel Pump to Block
30
3/8-16
Intake Manifold Bolt
35
3/8-16
Main Bearing Cap Bolt
85
1/2-13
Oil Pan Drain Plug
20
1/2-20
Oil Pan Bolt
15
5/16-20
Oil Pump Cover Bolt
95 in/lbs
1/4-20
Oil Pump to Block Bolt
35
3/8-16
Rocker Shaft Bolt
30
3/8-16
Spark Plug
30
14mm
Timing Cover Bolt (cast)
30
3/8-16
Torque Converter to Flexplate Bolt
270 in/lbs
5/16-24
Vibration Damper Pulley Bolt
200 in/lbs
5/16-20
Water Pump to Block Bolt
30
3/8-16
*Torque values shown are in ft/lbs unless otherwise noted – Follow factory torque sequence.
