Torque specs on head bolts?
Torque specifications are different from motor to motor. These specifications state how tightly the head bots are to be installed. Correct torque insure that the head gasket is sealed properly and correct torque sequence insures that the head itself is not warped in the installation process. Refer to a engine repair manual (Chilton's, Hayne's, etc.) for your vehicle/motor for the correct specs and torqueing sequence. You can usuall find these manuals at your local auto parts store. Hope this helps.