Careful about attaching those to a tree. Those things can seize in solid. A torch and a sledgehammer are sometimes the only solution .
Those 5.4 engines are one of the best on the market. Fair torque and horsepower too.
The 4.6 came out in the early 90's and many of the Ford engines are based on it.
I have never had one of my customers engines based on those have a major failure. As a matter of fact the only time I even had a valve cover off of one was a rocker broke on a Marquis 4.6. That was several years ago and the car was poorly maintained by the customer.
Once in a while a high miler 5.4 will seep oil between the head gasket and the block but haven't had one yet that was serious enough to need to pull apart.
The Dodge pickup gas engines also seem to be reliable in the last few years, too bad about the rest of the truck.