Jay if you are dropping the engine you mean you are taking it all the way out
or just letting it hang down so that you can get to the studs better?  If you
are letting it hang down be sure to becareful of the heater line on the
passenger side of the engine.  This can be torn if there is too much stress
on it.  Watch it as you drop the engine.  If it is under stress I would
unhook it (these are fairly expensive) or you will rip it and it will cause
you problems later.  Been There Done That and it is no fun.
Ken Wilford
Van-Again
John 3:16