| 426 Hemi Engine Torque Specifications * Torque values shown are in ft/lbs unless otherwise noted * Follow factory torque sequence
|
| Fastener
| Torque
| Thread Size
|
| Alternator Adjusting Strap Bolt
|
| 5/16-18
|
| Alternator Bracket to Block Bolt
|
| 3/8-16
|
| Alternator Mounting Bolt
|
| 3/8-16
|
| Camshaft Gear Retaining Bolt
|
| 3/8-16
|
| Carburetor to Manifold Nut
|
| 5/16-24
|
| Clutch Housing Bolt
|
| 7/16-14
|
| Connecting Rod Nut
|
| 7/16-20
|
| Crankshaft Rear Seal Retainer
|
| 3/8-16
|
| Crankshaft Bolt (Vibration Damper)
|
| 3/4-16
|
| Cylinder Head Bolt
| 70-75
| 7/16-14
|
| Cylinder Head Stud Nut
| 70-75
| 7/16-20
|
| Distributor Clamp Bolt
| 200 in/lbs
| 5/16-18
|
| Exhaust Manifold Bolt
|
| 3/8-16
|
| Fan Attaching Bolt
|
| 5/16-18
|
| Flywheel Cover Bolt
|
| 1/4-20
|
| Flywheel Housing to Block Bolt
|
| 7/16-14
|
| Flywheel to Crankshaft Bolt
|
| 7/16-20
|
| Fuel Pump to Block
|
| 3/8-16
|
| Main Bearing Cap Bolt
|
| 1/2-13
|
| Main Bearing Cap Tie Bolt
|
| 3/8-16
|
| Oil Pan Drain Plug
|
| 1/2-20
|
| Oil Pan Bolt
|
| 5/16-20
|
| Oil Pump Cover Bolt
|
| 5/16-18
|
| Oil Pump to Block Bolt
|
| 3/8-16
|
| Rocker Shaft Bolt
|
| 3/8-16
|
| Spark Plug
|
| 14mm
|
| Starter Mounting Bolt
|
| 7/16-14
|
| Timing Cover Bolt - Upper
| 15-18
| 5/16-18
|
| Timing Cover Bolt - Lower
| 15-18
| 3/8-16
|
| Torque Converter Housing Bolt
|
| 3/8-16
|
| Torque Converter to Flexplate Bolt
|
| 7/16-20
|
| Valve Cover Stud & Nut
| 40in/lbs
| 1/4-28
|
| Water Pump to Housing Bolt
|
| 3/8-16
|
| Water Pump Housing to Block Bolt
|
| 3/8-16
|
|
RB/B Engine Torque Specifications Big Block Chrysler 383, 400, 440
|
| Fastener
| Torque
| Thread Size
|
| A/C Compressor to Engine Bolt
|
| 3/8-16
|
| Alternator Adjusting Strap Bolt
| 200 in/lbs
| 5/16-18
|
| Alternator Adjusting Strap to Block Bolt
|
| 3/8-16
|
| Alternator Mounting Bolt
|
| 3/8-16
|
| Camshaft Lockbolt
|
| 7/16-14
|
| Carburetor to Manifold Nut
|
| 5/16-24
|
| Clutch Housing Bolt
|
| 7/16-14
|
| Connecting Rod Nut - Plain
|
| 3/8-24
|
| Crankshaft Rear Seal Retainer
|
| 3/8-16
|
| Crankshaft Bolt (Vibration Damper)
|
| 3/4-16
|
| Cylinder Head Bolt
|
| 7/16-14
|
| Distributor Clamp Bolt
|
| 5/16-18
|
| Exhaust Manifold Nut
|
| 3/8-16
|
| Exhaust Pipe Flange Nut
|
| 7/16-20
|
| Exhaust Pipe Clamp Nut
|
| 3/8-24
|
| Fan Attaching Bolt
| 15-18
| 5/16-18
|
| Flywheel Cover Bolt
|
| 1/4-20
|
| Flywheel Housing to Block Bolt
|
| 7/16-14
|
| Flywheel to Crankshaft Bolt
|
| 7/16-20
|
| Fuel Pump to Block
|
| 3/8-16
|
| Intake Manifold Bolt
|
| 3/8-16
|
| Main Bearing Cap Bolt
|
| 1/2-13
|
| Oil Pan Drain Plug
|
| 1/2-20
|
| Oil Pan Bolt
|
| 5/16-20
|
| Oil Pump Cover Bolt
|
| 5/16-18
|
| Oil Pump to Block Bolt
|
| 3/8-16
|
| Rocker Shaft Bolt
|
| 3/8-16
|
| Spark Plug
|
| 14mm
|
| Starter Mounting Bolt
|
| 7/16-14
|
| Timing Cover Bolt
|
| 5/16-18
|
| Torque Converter Housing Bolt
|
| 3/8-16
|
| Torque Converter to Flexplate Bolt
| 270 in/lbs
| 5/16-24
|
| Valley Pan End Bolt
|
| 1/4-20
|
| Valve Cover Stud & Nut
|
| 1/4-20
|
| Vibration Damper Pulley Bolt
| 200 in/lbs
| 5/16-20
|
| Water Pump to Housing Bolt
|
| 3/8-16
|
| Water Pump Housing to Block Bolt
|
| 3/8-16
|
|
LA Engine Torque Specifications Small Block Chrysler 273, 318, 340, 360
* Torque values shown are in ft/lbs unless otherwise noted
* Follow factory torque sequence
|
| Fastener
| Torque
| Thread Size
|
| Camshaft Lockbolt
|
| 7/16-14
|
| Carburetor to Manifold Nut
|
| 5/16-24
|
| Clutch Housing Bolt
|
| 3/8-16
|
| Connecting Rod Nut - Plain
|
| 3/8-24
|
| Crankshaft Bolt (Vibration Damper)
|
| 3/4-16
|
| Cylinder Head Bolt 273-318
|
| 1/2-13
|
| Cylinder Head Bolt 340-360
|
| 1/2-13
|
| Flywheel Cover Bolt
| 100 in/lbs
| 1/4-20
|
| Flywheel Housing to Block Bolt
|
| |
| Flywheel to Crankshaft Bolt
|
| 7/16-20
|
| Fuel Pump to Block
|
| 3/8-16
|
| Intake Manifold Bolt
|
| 3/8-16
|
| Main Bearing Cap Bolt
|
| 1/2-13
|
| Oil Pan Drain Plug
|
| 1/2-20
|
| Oil Pan Bolt
|
| 5/16-20
|
| Oil Pump Cover Bolt
| 95 in/lbs
| 1/4-20
|
| Oil Pump to Block Bolt
|
| 3/8-16
|
| Rocker Shaft Bolt
|
| 3/8-16
|
| Spark Plug
|
| 14mm
|
| Timing Cover Bolt (cast)
|
| 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
|
| 3/8-16
|
