Need cylinder head torque specs and diagram for a 4.0l

SOURCE: cylinder heads

your best bet is go to Napa or Oreillys and purchase the repair manual for your vehicle. it cost 20 bucks and has all the specs and diagrams in it. it's a good investment . good luck please rate this

SOURCE: Head bolt torque specs needed for 96 tbird 3.8

Head bolts are torque to yeild so you MUST use new bolts.
Tighten cylinder head retaining bolts in numerical sequence in three steps as follows:

1. 20 Nm (15 lb-ft).

1. 40 Nm (30 lb-ft).

1. 50 Nm (37 lb-ft)

• Tighten to 40-50 Nm (30-37 lb-ft).
• Rotate an additional 175-185 degrees.
• Go to next bolt in sequence.

• Tighten to 20-30 Nm (15-22 lb-ft).
• Rotate an additional 175-185 degrees.
• Go to next bolt in sequence.

SOURCE: Head gasket torque specs

Here you go, I hope this is what you were looking for:

For 1987-94 models, the cylinder head bolts are tightened in 3 progressive steps. Tighten them in the proper sequence as follows:
Step 1: 50-55 ft. lbs. (68-75 Nm) Step 2: 60-65 ft. lbs. (81-88 Nm) Step 3: 70-85 ft. lbs. (95-115 Nm) Let me know if I can assist you with anything else.

SOURCE: head bolt torque spec

Always use new head bolts.
1)tighten to 40ft/lbs
2)back off 1/2 turn
3)tighten back to 40ft/lbs
4)tighten an additional 90 degrees
5)tighten an additional 90 degrees.

SOURCE: need cylinder head gasket torque specs.

looks like there is special sequence to reassemble and tightening, a quick note replace any bolts that have two punch marks.tighten as follows: x x x x x 10 4 2 6 8 x x x x x 7 5 1 3 9 torque all down to 15 ft lbs torque to 30 ft lbs plus 90 degrees. Good luck!