i've hade this happen to me on acouple of motors and the way that i did it was to mix 50\50 brake fluid and trans fluid,put it in all the cyl's and every day go out with a breaker bar w\ socket and try to move the engine back and forth, and don't be afraid to put a little ass into it and with any luck you should be able to move it with-in the week. if you do get it to move? then turn the engine over by hand about 12 times and then start the engine good luck