Torque Specs

Cylinder head torque spec is tighten to 22 ft/lb, tighten each bolt then to 52ft/lt and in a third step tighten all head bolts another 90 degrees. Intake manifold. The intake manifold gasket lower bolts get tightened to 3 to 6 ft/lb, then a further 6 to 11 ft/lb, then 11 to 15 ft/lb, finally 15 to 18 ft/lb. The upper bolts get tightened 15 to 18 ft/lb.