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 15 5/16-18
Alternator Bracket to Block Bolt 30 3/8-16
Alternator Mounting Bolt 30 3/8-16
Camshaft Gear Retaining Bolt 40 3/8-16
Carburetor to Manifold Nut 7 5/16-24
Clutch Housing Bolt 50 7/16-14
Connecting Rod Nut 75 7/16-20
Crankshaft Rear Seal Retainer 30 3/8-16
Crankshaft Bolt (Vibration Damper) 135 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 35 3/8-16
Fan Attaching Bolt 15 5/16-18
Flywheel Cover Bolt 7 1/4-20
Flywheel Housing to Block Bolt 50 7/16-14
Flywheel to Crankshaft Bolt 70 7/16-20
Fuel Pump to Block 30 3/8-16
Main Bearing Cap Bolt 100 1/2-13
Main Bearing Cap Tie Bolt 45 3/8-16
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 30 3/8-16
Rocker Shaft Bolt 30 3/8-16
Spark Plug 30 14mm
Starter Mounting Bolt 50 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 30 3/8-16
Torque Converter to Flexplate Bolt 65 7/16-20
Valve Cover Stud & Nut 40in/lbs 1/4-28
Water Pump to Housing Bolt 30 3/8-16
Water Pump Housing to Block Bolt 30 3/8-16
RB/B Engine Torque Specifications Big Block Chrysler 383, 400, 440
* Torque values shown are in ft/lbs unless otherwise noted
* Follow factory torque sequence
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
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 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
