- Install the cylinder block-to-cylinder head alignment dowels.
- Install the NEW front oil gallery expansion plug.
- Ensure the NEW front oil gallery expansion plug is installed to the proper depth.
- Install the cylinder block-to-transmission alignment dowels.
- Apply the RTV sealant, GM P/N 12378521 (Canadian P/N 88901148) or equivalent on the NEW coolant expansion plugs.
- Install the NEW coolant expansion plugs.
- Ensure the NEW coolant expansion plugs are installed to the proper depth.
- Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent on the threads of the M20 left side oil gallery threaded plug.
Caution: Refer to Fastener Caution in the Preface section.
- Install the M20 left side oil gallery threaded plug.
Tighten
Tighten the M20 left side oil gallery threaded plug to 75 N·m (55 lb ft).
- Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent on the threads of the M14 left side coolant drain threaded plug.
- Install the M14 left side coolant drain threaded plug.
Tighten
Tighten the M14 left side coolant drain threaded plug to 50 N·m (36 lb ft).
- Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent on the threads of the M14 rear oil gallery threaded plug.
- Install the M14 rear oil gallery threaded plug.
Tighten
Tighten the M14 rear oil gallery threaded plug to 50 N·m (36 lb ft).
- Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent on the threads of the M14 right side coolant drain threaded plug.
- Install the M14 right side coolant drain threaded plug.
Tighten
Tighten the M14 right side coolant drain threaded plug to 50 N·m (36 lb ft).
- Apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent on the threads of the M14 right side oil gallery threaded plug.
- Install the M14 right side oil gallery threaded plug.
Tighten
Tighten the M14 right side oil gallery threaded plug to 50 N·m (36 lb ft).
- Install the cylinder block-to-oil pan alignment dowels.
- Install the NEW right front oil pan rail oil gallery expansion plug.
- Ensure the NEW right front oil pan rail oil gallery expansion plug is installed to the proper depth.
- Install the oil jets.
- Install the oil jet bolts.
Tighten
Tighten the oil jet bolts to 10 N·m (89 lb in).