Excellent.
So I will undo the exhaust pipe and pull it out by hand.
Then remove the manifolds from the head.
Next, clean the block, bolt holes, cylinder head surface.
Then have the head examined and pressure tested.
Put gasket on and reassemble.
I know the torque specs for head bolts, manifold nuts, rocker arm assembly. And I know the valve clearance measurements, cold and hot. Are there torque specs for the water outlet or just tighten snug with a wrench?