Small block Chevy Torque Specifications

Cylinder head torque sequence

Intake manifold torque sequence

Application Bolt Size

[in-thread]

Torque Coating
Main Bearing, Inner 1/2-13 70 lb. ft. Oil or Molykote
Main Bearing, Outer 1/2-13 65 lb. ft. Oil or Molykote
Con-Rod 3/8-24 50 lb. ft.* Oil
Cylinder Head 7/16-14 65 lb. ft. Sealant
Oil Pump 7/16-14 65 lb. ft. Oil
Oil Pump Cover 1/4-20 80 in. lb. Oil
Harmonic Balancer 1/2-20 85 lb. ft. Oil
Camshaft Sprocket 5/16-18 20 lb. ft. Oil
Flywheel/Flexplate 3/8-16 60 lb. ft. Loctite
Bell Housing/Trans 3/8-16 30 lb. ft. Oil
Intake Manifold 3/8-16 25 lb. ft. Sealant
Exhaust Manifold 3/8-16 25 lb. ft. Antiseize
Distributor Clamp 3/8-16 20 lb. ft. Oil
Rocker-Arm Stud 7/16-14 50 lb. ft. Oil
Oil Pan (small bolts) 5/16-18 165 in. lb. Oil
Oil Pan (large bolts) 1/4-20 80 in. lb. Oil
Timing Chain Cover 1/4-20 80 in. lb. Oil
Rocker Cover 1/4-20 25 lb. in. Oil
Water Pump 3/8-16 30 lb. ft. Sealant
Water Outlet 3/8-16 20 lb. ft. Oil
Oil Drain Plug 1/2-20 20 lb. ft. Oil
*Note: Rod bolts may require more than 50 lb. ft. of torque in order to obtain the recommended 0.006 inch bolt stretch.



Cylinder head torque sequence




Intake manifold torque sequence


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