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Mopar
Information: HomeChrysler,
Dodge And Plymouth EnginesBig
Block |
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Mopar Big Block
Torque Specifications |
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RB/B Engines - 383,
400, 440 |
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| 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, you should
follow the recommended torque specifications of the aftermarket
bolts. |
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| *Please
Note: Some specifications listed below are in inch-pounds rather
than foot-pounds. Over torquing will result in broken bolts. |
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* Torque
values shown are in ft/lbs unless otherwise noted - Follow factory
torque sequence. |
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Fastener |
Torque |
Thread Size |
| A/C
Compressor to Engine Bolt |
30 |
3/8-16 |
| Alternator
Adjusting Strap Bolt |
200 in/lbs |
5/16-18 |
| Alternator
Adjusting Strap to Block Bolt |
30 |
3/8-16 |
| Alternator
Mounting Bolt |
30 |
3/8-16 |
| Camshaft
Lockbolt |
35 |
7/16-14 |
| Carburetor
to Manifold Nut |
7 |
5/16-24 |
| Clutch
Housing Bolt |
50 |
7/16-14 |
| Connecting
Rod Nut - Plain |
45 |
3/8-24 |
| Crankshaft
Rear Seal Retainer |
30 |
3/8-16 |
| Crankshaft
Bolt (Vibration Damper) |
135 |
3/4-16 |
| Cylinder
Head Bolt |
70 |
7/16-14 |
|
Distributor Clamp Bolt |
15 |
5/16-18 |
| Exhaust
Manifold Nut |
30 |
3/8-16 |
| Exhaust
Pipe Flange Nut |
50 |
7/16-20 |
| Exhaust
Pipe Clamp Nut |
20 |
3/8-24 |
| Fan
Attaching Bolt |
15-18 |
5/16-18 |
| Flywheel
Cover Bolt |
7 |
1/4-20 |
| Flywheel
Housing to Block Bolt |
50 |
7/16-14 |
| Flywheel
to Crankshaft Bolt |
55 |
7/16-20 |
| Fuel Pump
to Block |
30 |
3/8-16 |
| Intake
Manifold Bolt |
40 |
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 |
10 |
5/16-18 |
| Oil Pump
to Block Bolt |
35 |
3/8-16 |
| Rocker
Shaft Bolt |
25 |
3/8-16 |
| Spark Plug |
30 |
14mm |
| Starter
Mounting Bolt |
50 |
7/16-14 |
| Timing
Cover Bolt |
15 |
5/16-18 |
| Torque
Converter Housing Bolt |
30 |
3/8-16 |
| Torque
Converter to Flexplate Bolt |
270 in/lbs |
5/16-24 |
| Valley Pan
End Bolt |
9 |
1/4-20 |
| Valve
Cover Stud & Nut |
7 |
1/4-20 |
| Vibration
Damper Pulley Bolt |
200 in/lbs |
5/16-20 |
| Water Pump
to Housing Bolt |
30 |
3/8-16 |
| Water Pump
Housing to Block Bolt |
30 |
3/8-16 |
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| Information found on this page is
believed to be accurate. The 440magnum Network assumes no
responsibility for errors or omissions in anything that is
referenced by or linked to this site. This information is provided
"as is" and was obtained from the www, Books and other reference
Materials. |
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