1970 340/727

What is the difference, it needs to be rebuilt anyway?
I bought one once the guy power washed it and put it away for years, I bored it and put one sleeve in it?!

The difference is, if it is stuck tightly, it could have a cracked cylinder or more from rust and water. If it turns at all, it has a better chance of not being a $1500 pile of scrap metal. That's the difference. I'm glad of your past experiences, but that speaks nothing about this particular engine.