joestewart
SILVER Star
I over heated my F135 back in about 1988. The overheat was so bad that several of the valves were frozen in their respective guides (which is probably what happened to you). I can't remember, but I may have had a couple of bent push rods. I took off the cylinder head and had it rebuilt by "American Cylinder Head" which was (and probably still is) in Oakland, California. I inspected the cylinder bores and no apparent damage. Installed the rebuilt head and gentlemen, that engine is still running today, with no major interval work done to the core of the engine. I am pretty sure your outcome will be similar.