I took a good look inside a spare engine before installing it in my car a few months ago and documented the process in this thread;
http://www.fordbarn.com/forum/showthread.php?t=210059
Lots of pictures, The engine has nice tight clearances on the mains (.0015) and the thrust bearing is also in great shape. It hasn't leaked a drop of oil... only about 100 miles on it so far however.