Small Block Chevrolet Torque Specs

Gen. I, Small Block Chevy

Location
Thread
Torque
Outer Main Cap Bolt
7/16"-14
70 ft-lbs
Inner Main Cap Bolt
7/16"-14
70 ft-lbs
Outer Main Cap Bolt
3/8"-16
40 ft-lbs
Oil Pump Bolt
60-70 ft-lbs
Oil Pump Cover to Body
1/4"-20
6-9 ft-lbs
Oil Pump to Rear Bearing Cap Bolt
7/16"-14
45-50 ft-lbs
Engine Mount to Engine
3/8"-16
36 ft-lbs
Engine Mount to Frame
3/8"-16
35 ft-lbs
Engine Mount Through Bolt
45-60 ft-lbs
Transmission Mount
35 ft-lbs
11/32 in. Connecting Rod Bolt
35 ft-lbs
Connecting Rod Bolt
3/8"-24
45 ft-lbs
Cam Sprocket Bolts
5/16"-18
20 ft-lbs w/ Thread Locker
Flywheel/Flexplate Bolts
60 ft-lbs w/ thread locker
Flywheel Housing to Crankcase
3/8"-16
25 ft-lbs
Flywheel Housing plate cover
1/4"-20
10 ft-lbs
Bellhousing Bolts
25 ft-lbs
Fuel Pump Bolts
3/8"-16
25 ft-lbs
Screw-In Rocker Arm Studs
50 ft-lbs
Rocker Arm Nut
Zero lash plus 1/2 turn
Cylinder Head Bolts
7/16"-14
65 ft-lbs
Intake Manifold Bolts
3/8"-16
30 ft-lbs w/ non hardening sealant
Exhaust Manifold Bolts
3/8"-16
25 ft-lbs w/ anti-seize lubricant
Valve cover bolts
1/4"-20
3 ft-lbs
Carburetor Nuts
5/16"-24
12 ft-lbs
Spark Plugs
14mm
20 ft-lbs w/o lubricant or sealer
Timing Cover Bolts
1/4"-20
6 ft-lb
Oil Pan Drain Plug
25 ft-lbs
Oil pan to front cover
1/4"-20
6 ft-lb
Oil Pan
5/16"-18
13 ft-lb
Oil Filter bolt
1/2"-13
20 ft-lbs
Pulley to Balancer Hub
3/8"-24
15 ft-lbs
Harmonic Damper Bolt
7/16"-20
60 ft-lbs
Water pump
3/8"-16
30 ft-lb w/ Sealant
Thermostat Housing
3/8"-16
25 ft-lbs
Starter Bolts
3/8"-16
25 ft-lbs
Distributor Hold Down
3/8"-16
20 ft-lb
Fan Blade Assembly to Flange
5/16"-24
15 ft-lbs
Head Bolt Torque Sequence Intake Manigold Bolt Torque Sequence

Notes

These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications.