Thanks. I thought that is where it might be. I am a little reluctant to unbolt the pcv container looking thing that attaches to the block to have alook as I am not sure if o rings or gaskets might be destroyed just to have a look at the casting number. I already have the head off and the exhaust manifold off to replace the head gasket.
This is another question I have: On the bottom side of the head on the thermostat end, is a stamp that says "020". Does this mean that the heed has already been resurfaced with .020 inches of material removed and that the machine shop stamped it to indicate this or do all 3rd gen heads have this stamp maybe to indicate the maximum amount of material that can be milled off. It would be helpful to know as I am considering having the head tested at a cylinder head machine shop vs just bolting everything back on and compression testing, then running and checking for leaks of coolant, oil and compression. I checked the head with a piece of straight glass and could not find any warp. There are no cracks visible. It appears that the head was reworked and maybe stainless steal inserts put in. The seats don't look like the powdery kind that are OEM and drop out. I am only going by looking at pictures of the OEM seats and comparing because I do not have real world and relevant experience to know the difference. I realize that the safest bet is ti have the head pressure checked and straight edged at a machine shop. I am trying to just do it a little on the cheaper side and all I would be out is the head gasket set if there is a problem.
If there was a warp that I could not detect or an internal crack that I can not see I would not see the point in taking in ahead that has already been milled .020 inches. I would probably buy a rebuilt head.
I might end up posting this question on another thread as I went off topic.
Any input appreciated. Thanks.
