Sounds like they require you to torque to 18 foot pounds then tighten an additional 60 degrees. 90 degrees = 1/4 turn, so a little less than 1/4 turn of additional tightening.
don't know if they are same but an 88 lemans torque to 18 then two turns of 60 degrees then 30 degrees. if this isn't right check your local library they usually have great manual that you can copy pages out of.
From:http://www.autozone.com/autozone/repairinfo/specifications/specificationsMain1993 Pontiac Lemans-Import 1.6L TBI SOHC 4cylApplication:Cylinder head bolt torque sequenceNote :Torque sequence ----------------| 8 4 1 5 9 || 7 3 2 6 10 |----------------Step 1: Torque in sequence 18 Ft/LbsStep 2: Torque in sequence 60 degreesStep 3: Torque in sequence an additional 60 degreesStep 4: Torque in sequence 30 degreesrecheck final torque in sequence>*** CAUTION ***
14 ft pounds plus 30 degrees torque to 14 ft lb then turn 30 degrees more
first get new head bolts. they are torque to yield. torque them to 37 ft-lbs and then rotate an additional 120 degrees.
Camshaft carrier/cylinder head mounting bolts to 25n.m (18 lb ft.) in figure 21 each bolt an additional 60 degrees each bolt to 120 degrees (additional 60 degrees) each bolt to 150 degrees (additional 30 degrees) bolt sequence as follows; passenger fender 8 4 1 5 9 drivers fender 7 3 2 6 10
THe Chiltons says "14lbs + 30 degrees"
For the 1996 Pontiac Grand Am 3.1 liter 6-cylinder, the torque for the intake bolt is 10 ft/lbs. The torque for the rod bearing cap in step one is 15 ft/lbs, and in step two turn an additional 75 degrees.
What is the Cylinder Torque sequence 2000 Pontiac Montana 3.4V6
110 lbs of torque
You may be referring to something called "torque roll." If a RWD car (or truck) uses a live axle in the rear, then all the torque coming out the back of the transmission creates an equal (and opposite in direction) torque against the frame, specifically applied at the motor mounts. Things can be done with the suspension to disguise it, but the only way to completely eliminate torque roll would be to physically separate the rear differential housing from the suspension.
44 lb ft. + 95 degrees
what is the torque spec for a 2005 Pontiac G6 Gt brakes