1. Clean all gasket mating surfaces.
2. Install new gaskets as required.
o Use new cylinder head bolts.
3. Follow the removal procedure in reverse order.
4. Tighten the bolts in sequence, in three stages, to 70 Nm (51 ft. lbs.) .
o Stage 1: Tighten all bolts to 70 Nm.
o Stage 2: Retighten all bolts to 70 Nm.
o Stage 3: Tighten all bolts an additional 90-100 degrees
From Alldata.com