Pontiac Engine Torque Specifications

 

 
Application Method Torque Increment Lubrication
Cylinder Head to Block
(with Grease Under Head of Bolt)
Bolt 95 lb/ft *NOTE 1 25 lb/ft Oil
Main Caps 1-4 to Block Bolt 100 lb/ft 25 lb/ft Oil
Rear Main Cap to Block Bolt 120 lb/ft 25 lb/ft Oil
Oil Pan to Block Bolt 12 lb/ft 4 lb/ft Dry
Oil Pump to Block Bolt 30 lb/ft 15 lb/ft Loctite **NOTE 2
Windage Tray to Main Cap Bolt 15 lb/ft NONE Loctite **NOTE 2
Oil Pump Cover Bolt 15 lb/ft 5 lb/ft Loctite **NOTE 2
Flywheel, or Flexplate, to Crank Bolt 95 lb/ft 35 lb/ft Dry
Harmonic Balancer to Crank Bolt 160 lb/ft NONE Loctite or Dry
Cam Gear to Cam Bolt 55 lb/ft NONE Dry
Exhaust Manifold to Cylinder Head Bolt 30 lb/ft 15 lb/ft Anti-Seize Lube
Intake Manifold to Head Bolt 40 lb/ft ***NOTE 3 10 lb/ft Dry
Timing Cover to Intake Manifold Bolt 12 lb/ft ****NOTE 4 NONE Dry
Valve Cover to Head Bolt 8 lb/ft 4 lb/ft Dry
Pressure Plate to Flywheel Bolt 25 lb/ft 5 lb/ft Loctite **NOTE 2
Bellhousing to Block Bolt 40 lb/ft 20 lb/ft Dry
Timing Cover to Block Bolt 25 lb/ft 15 lb/ft Dry
Oil Pan to Timing Cover Bolt 10 lb/ft 5 lb/ft Oil
Valley Pan to Block Bolt 10 lb/ft 5 lb/ft Dry
Water Pump to Timing Cover Bolt 10 lb/ft 5 lb/ft Oil
Fuel Pump to Timing Cover Bolt 10 lb/ft 5 lb/ft Oil
Oil Filter Mount Bolt 25 lb/ft 10 lb/ft Dry
Connecting Rods (except 455SD) Nut 45 lb/ft 15 lb/ft Oil
Connecting Rods (455SD) Nut 63 lb/ft 15 lb/ft Oil
Rocker Arm
(3/8 Bottleneck Studs Only)
Nut 20 lb/ft NONE Oil
Timing Chain Cover Nut 25 lb/ft 15 lb/ft Dry
Oil Pan Drain Bolt 20 lb/ft NONE Oil
Rocker Arm Stud
(Screw-In Only)
Stud 55 lb/ft NONE Dry
Spark Plug (Gasket Type) 25 lb/ft NONE Dry
Spark Plug (Taper Seat 1972-Up) 15 lb/ft NONE Dry

* NOTE 1:

Tighten center two bolts to 100 lb/ft, and tighten the remaining bolts in a spiral fashion

** NOTE 2:

DO NOT use Loctite on Aluminum threads. I have read that it may destroy the threads upon removal, due to Aluminum’s softness (and it just kind of makes sense…)

*** NOTE 3:

After torquing all bolts, let stand for 20-30 minutes. Gaskets will set in this time, which will require a retorque

**** NOTE 4:

Only START the Intake Bolts. Torque Timing Cover to Intake Bolt first, THEN torque remaining Intake Manifold Bolts