1989 4g61t 65-72 ft/ls in three steps.
65-72 ft/lbs in the link provided above.
65-72 ft/lbs in three steps, in the Galant VR4 1991-92 service manual.
That was the torque across the board, for these motors with stock head bolts.
1993 saw the introduction of torque to yield style bolts, ie 7 bolt motors. Ignore the specs and installation steps for the 1993+.
If you want to torque the head down using the steps below, THEN remove the bolts, clean and relube them, then re-torque the head/gasket again, you can. Technically this is one extra step to hope the head gasket is completely crushed and likely overkill, because taking it down in steps should be just fine. They will be very tight at the end, and recheck the torque with the motor hot (valve cover off), will likely not yield a pinch of movement on your torque bar.
Always use long slow, smooth movements when torquing the studs.
You want to reach each torque reading in a single, smooth, non-interrupted, 90 degree inline movement of the torque wrench. That's about the best way I can describe that.
If jerky motions are used, or going over the bolts 10x but moving past the initial click/click-beep(digital models), you have surpassed the desired clamping force.
Bolt threads in block have to be cleaned, tapped clean ... blow out any and all debris in the bottom also.
Coolant likes to puddle in there, along with all the debris from the head gasket cleaning process.
All bolts should finger thread into the block, with no restriction at any point, short of reaching a depth at which they will not sit, due to installed depth with the head in place.
Oil on underside of bolt head, and washer, not on threads.
If installing ARP studs and are using their friction modifier lube, use their torque spec, and apply lube to threads too.
If you know the friction compensation numbers for different oils on the threads, incorporate that, but only if you have definitive information from ARP (and if applying their studs), this may not apply to stock head bolts due to differing external surfaces in the two products!
Here is the Galant engine manual, load it and go to page 129. 1993 engines used TTY bolts, not what you have in your vehicle.
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Make sure you have an accurate torque wrench and a 1/2' drive 10mm allen head socket ... or maybe it was a 3/8" drive because the 1/2" wouldn't pass down low enough due to contact with portions of the head castings being so tight in the middle portions.
Either way, it has to fit all the holes. I had issues, and can't now remember which one I used. Someone here will remember this tidbit of information for you, if you don't have the bit already.
But if you got it off already, forget my little story.