Comments on engine
Hi Kevin
I've inserted my thoughts in a different font as this seemed the most direct way to respond clearly to your questions.
"Hi, Cylinder head removed today, all checked ok, no cracks, cylinder head grit blasted cleaned and primed ready for rebuild, all valves and gear in very good condition." Depending on the condition of the valves and the seats I suspect that a complete valve job with new guides may be worth the effort in the long run but determine the condition of the rest of the engine first
"A couple of negative points : No thermostat in the housing," Not a big deal to get a new one, but might be and indication that the engine was running hot "engine stuck because the two rear bores have had water in them over the years." this damage might hone out "fourth cylinder from the front had some gouges in the bores," this one maybe more of a problem from the from the picture it looks like the gouge is curved at the top, is this toward the front or rear of the engine? If so it might be that a wrist-pin has gotten loose I suspect the truck was parked up because of this 20 years ago, not sure what caused this, any ideas??.
Also the thermostatic valve built into the exhaust manifold has been welded shut and the manifold welded to the intake manifold, so basically the whole thermostatic valve has been disabled. Is this common?, perhaps a mod done to other trucks, Anyone come across this before?, I need to know before I start refurbishing both manifolds. " First time I've heard of somebody welding one open, very common to find them stuck open. Not a real problem under most driving conditions, will tend to make the engine run rough when cold but the tight engine compartment on a CMP generally takes care of that.
Now as to the over all condition of the engine, you have not shown anything yet that would say the engine can not be rebuilt. Have you pulled the pan yet?
Cheers Phil
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