How do you replace the head gasket on a 1996 Oldsmobile Achieva?

To replace the head gasket on a 1996 Oldsmobile Achieva, start by disconnecting the battery and draining the coolant. Remove the intake and exhaust manifolds, along with any necessary components like the timing cover and belts to access the cylinder head. Carefully unbolt the cylinder head and remove the old gasket, ensuring the surfaces are clean before installing the new gasket. Reassemble everything in reverse order, torqueing the bolts to the manufacturer's specifications.