I posted a few days ago about a Farmall Super C getting coolant in the oil. I had put air pressure in the cylinders and radiator trying to find a leak looking in the bottom of the engine with the oil pan off. I couldn't find anything but one of the intake valves was leaking air back into the carburetor so I decided to pull the head. No signs of a leak in the head gasket but did find that the one valve wasn't lapped in very well.
One thing I would like to do is replace the head studs. I suspect they are stretched and some have signs of corrosion pitting on them. I am thinking of going back with bolts. A grade 8 bolt is $2 and the studs are around $20 each if I can find them. I would be torqueing coarse threads into the block instead of fine thread nuts so I would have to increase the torque about 35%. I don't see any reason I can't do this. I think studs are better but not better enough to justify the cost. I have seen a lot of engines with bolts so I know it works.
One thing I would like to do is replace the head studs. I suspect they are stretched and some have signs of corrosion pitting on them. I am thinking of going back with bolts. A grade 8 bolt is $2 and the studs are around $20 each if I can find them. I would be torqueing coarse threads into the block instead of fine thread nuts so I would have to increase the torque about 35%. I don't see any reason I can't do this. I think studs are better but not better enough to justify the cost. I have seen a lot of engines with bolts so I know it works.