Hi guys ive rebuild my 2.8 cologne engine and also put in some new headgaskets.

Ive seen some manuals say torque it to step 3 80-95 ft lb and thats it.
But some manuals even have a step 4 80-95 ft lb after the engine had run for about 15 minutes.

Now my question is is this a necessary step and if so should i let the engine cool down or should it be torqued when the engine is hot?


it has no stretch bolts.