"...share how you keep your engine area looking good?"
Well Youngfalcon;
I don't know the answer to your dilemma but here is what I intend to do in order to keep the engine in the 41 I'm restoring in pristine condition:
a. Get me some correct shade engine paint from FS.
b. Paint the engine.
c. Shrink wrap the engine whilst I install it and get everything in place.
d. When everything else is done and nothing more to do, I'll go to the store and get 5 quarts of Havoline 10-30 and shrink wrap them too. I'll put them in the trunk.
e. Then I will get a trailer with a good winch to cart the sucker to wherever I want it to go.
f. At destination, I will enlist the help of other old chevrolet owners to push it around.
g. When asked it the engine will run, I'll say, "Well, I don't know why it wouldn't, at least for a little while."
h. The shrink wraps will stay in place.
Back to your question. Tiny is right. Except for going completely nuts on chasing the oil seeps (See Steve AKA Wuzinut (sp) who frequents the 37-42 forum) I don't know how to keep the engine clean or even come close, if you ever put one drop of oil in it. You don't even have to turn the engine over, even once. The oil will find a way to the outside. You can count on it. "Mission Impossible.! It's magic. Is too!
Charlie