Properly torquing the bolts or studs used to connect the head to the block is critical in order to get optimum gasket seal. First, the fasteners must be tightened in a specific pattern. Begin with the centermost fastener and work your way outward in a spiral pattern. Whether you go clockwise or counterclockwise is up to you as long as you’re consistent. Also, you should also reach your final torque value in three steps. For example, if your goal is to torque the head studs to 60 ft-lb, begin by torquing all the bolts to 40 ft-lb first. Then go back a second time and increase the torque to 50 (you don’t need to loosen them first). Finally, on the third go-round, you can hit the 60 ft-lb mark for the completed process.