What is the head bolt torque sequence for a 1998 Oldsmobile achieva 3.1L?

For a 1998 Oldsmobile Achieva with a 3.1L engine, the head bolt torque sequence typically follows a specific pattern: start from the center bolts and work outward in a staggered pattern. First, torque the bolts to 22 ft-lbs, then perform a second pass to 37 ft-lbs, and finally, turn each bolt an additional 90 degrees. Always refer to a repair manual for precise specifications and ensure the engine is at the correct temperature before starting.