Chevy Torque Specs
You don't need to do a lot of book work to find torque specs for your Chevy engine, because we've done it for you! Just print it out and post it in your shop or toolbox.
These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Other lubes, moly, and aftermarket bolts will have different torque specs.
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| Small Chevy |
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| Fastener Type |
|
Torque Spec |
|
| 7/16 in. outer main cap bolt |
|
65 ft.-lbs. |
| 7/16 in. inner main cap bolt |
|
70 ft.-lbs. |
| 3/8 in. outer main cap bolt |
|
40 ft.-lbs. |
| 11/32 in. connecting rod bolt |
|
38-44 ft.-lbs. |
| 3/8 in. connecting rod bolt |
|
40-45 ft.-lbs. |
| Cylinder head bolts |
|
65 ft.-lbs. |
| Screw-in rocker arm studs |
|
50 ft.-lbs. |
| Intake manifold bolts (cast iron heads) |
|
30 ft.-lbs. |
| Oil pump bolt |
|
60-70 ft.-lbs. |
| Cam sprocket bolts |
|
18-20 ft.-lbs. |
| Harmonic damper bolt |
|
60 ft.-lbs. |
| Flywheel/flexplate bolts |
|
65 ft.-lbs. |
| Pressure plate bolts |
|
35 ft.-lbs. |
| Bellhousing bolts |
|
25 ft.-lbs. |
| Exhaust manifold bolts |
|
25 ft.-lbs. |
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Big Chevy |
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|
| Fastener Type |
|
Torque Specs |
|
| Main cap bolt, 396-427 2-bolt |
|
95 ft.-lbs. |
| Main cap bolt, 396-454 4-bolt (inner/outer) |
|
110 ft.-lbs. |
| 3/8 in. connecting rod bolt |
|
50 ft.-lbs. |
| 7/16 in. connecting rod bolt |
|
67-73 ft.-lbs. |
| Cylinder head bolts, long |
|
75 ft.-lbs. |
| Cylinder head bolts, short |
|
65-68 ft.-lbs. |
| Screw-in rocker arm studs |
|
50 ft.-lbs. |
| Intake manifold bolts (cast iron head) |
|
25 ft.-lbs. |
| Oil pump bolt |
|
65 ft.-lbs. |
| Cam sprocket bolts |
|
20 ft.-lbs. |
| Harmonic damper bolt |
|
85 ft.-lbs. |
| Flywheel/flexplate bolts |
|
60 ft.-lbs. |
| Pressure plate bolts |
|
35 ft.-lbs. |
| Bellhousing bolts |
|
25 ft.-lbs. |
| Exhaust manifold bolts |
|
20 ft.-lbs. |
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