Notice: Refer to Fastener Notice in Cautions and Notices.
1. Install the front camshaft oil gallery plugs. Use GM part number 12345493, or the equivalent, on the threads.
Tighten
Tighten the plugs until they are completely seated.
2. Install the oil cooler line fittings. Use GM P/N 12346004, or the equivalent, on the threads.
Tighten
Tighten oil cooler line fittings to 5 7 N-m (43 Ib ft).
3. Install the side oil gallery plugs.
Tighten
Tighten oil gallery plugs to 3 4 N-m (25 Ib ft).
4. install the remaining oil gallery plugs. An oil gallery plug is located inside the rear main bearing cap land. Use GM P/N 12346004, or the equivalent, on the threads.
Tighten
Tighten oil gallery plug s to 3 4 N-m (25 Ib ft).
5. Install the engine oil pressure sensor switch.
6 . Install the cup plugs and the block heater. Use GM P/N 12345493, or the equivalent, on the cup plugs.
7. Install the coolant drain plugs.
Tighten
Tighten the coolant drain plugs to 25 N-m (18 Ib ft).
