Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Block Assemble
Reference: ENGINE BLOCK CLEANING AND INSPECTION .
- 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 NOTICE .
- Install the M20 left side oil gallery threaded plug.
Tightening torque
Tighten the M20 left side oil gallery threaded plug to 31 N.m (23 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.
Tightening torque
Tighten the M14 left side coolant drain threaded plug to 31 N.m (23 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.
Tightening torque
Tighten the M14 rear oil gallery threaded plug to 31 N.m (23 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.
Tightening torque
Tighten the M14 right side coolant drain threaded plug to 31 N.m (23 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.
Tightening torque
Tighten the M14 right side oil gallery threaded plug to 31 N.m (23 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.
Tightening torque
Tighten the oil jet bolts to 10 N.m (89 lb in) .
Reference: CRANKSHAFT AND BEARINGS INSTALLATION .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.