Well, they're not making them anymore, so store it and if the final decision is made sell it rather than junk.
For the ****** parts and info are readily available.
Same for the block if it's not cracked. Even then it can be sleaved!!
Take the plugs out and pour some ATF (automatic transmission fluid) in each cylinder.
Buddy of mine and I ended up with something similar. now rests on a pallet in the garage, the ****** has been rebuilt.
http://www.vanpeltsales.com/FH_web/flathead_home.htm
from
alanwoodieman
most of the time I soak them with a mixture of atf and acetone 50/50. usually for two weeks. try to spray upward so that the valves get some of this mixture. then take a pull handle and socket on front crankshaft bolt and attempt to turn over engine, just a little, if it moves back up more than you came forward. leave alone with more of the mixture for a day or so. I have also found that valves stuck in the guides can be the culprit. If so remove the valley cover and soak the valve guides with same. I just unstuck one that had been sitting since 1972--good luck and go slow
and from
rotorwrench:
I always caution folks that are trying to break an old flatty free. Most things have been touched on to a point. Some folks think it's just a piston or three but any metal to metal surface can corrode and sieze up. Pistons to cylinder are common but stuck valves are just as common. You can break a stuck piston loose a lot of times with a long cheater bar but you will break a cam or follower if it's stuck valves. As was mentioned too, clutch plates can rust to the flywheel and they sometimes take a good bit to break that bond even though it's not technically a metal to metal surface and it realy doesn't lock up the engine. If the vehicle is in neutral it will spin the input & countershaft freely along with the crank but it won't disengage.
from
straightpipes:
All of these methods may get it loose but you still dont know whats going on inside. Pull the manifold and heads and inspect it properly.
Go to search above for more ideas!!!