Hi i'm eduardo and i have a '94 nissan pathfinder 4wd...engine 3.0.... i want to know the head torque specifications .

Hi Eduardo:
Check this information (click over pics for zoom)...



Fig. 20: Exploded view of the cylinder head assembly-VG30E engine




Fig. 15: Cylinder head loosening sequence-VG30i and VG30E engines




Fig. 17: Cylinder head torque sequence-VG30i and VG30E engines


Install the cylinder head with a new gasket. Apply clean engine oil to the bolt threads and seats, then install the bolts with washers (beveled edges up) in the correct position. Note that bolts 4, 5, 12 and 13 measure 5.00 in. (127mm), and are longer than the others. The other bolts are 4.17 in. (106mm) long.

Tighten the bolts in the proper sequence, in the following stages:
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 43 ft. lbs. (59 Nm).
Loosen all bolts completely.
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 40-47 ft. lbs. (54-64 Nm). Or, if you have an angle torque wrench available, tighten them an additional 60-65 degrees.


Hope this helps; remember to rate this answer. Good luck.

I'm looking for the head torque spec's and the main and big heads of the crankshaft of a Nissan interstar 120dci 2.5 2006 please