Wow, that was a fast reply longbox; thank you. So when you say, "first series," does that mean the first series of 261 motors, or the first series in 1955?

Also, what were the advantages of the 261? I seem to recall they were only made for 2 or 3 years and usually only came in school buses or commercial rigs.

??

Now to move on and consider my bent push rod, how to discover what happened and where to buy one.

I've got 4-squirts of ATF/diesel mix in the spark plug holes, and fresh motor oil drizzled down all of the rocker area. Next I'll take a piece of wood and tap on each rocker valve side to make sure none are stuck. After learning what to do about the push rod, and giving the ATF mix 3 days to soak, I'll pull the clutch inspection pan and attempt to turn the engine over.

I'm anxious to know if the engine is usuable as-is, after all those years sitting.

Dennis