How is this engine compartment so clean?

the black paint on the walls has been redone , because mopars left the factory with the engine bay painted body color. i believe it was chevy that used black, and alot of us mopar guys use it as a quick fix sometimes for cleaning up paint that cant be saved.the orange intake is not original color either. it does look very clean and fresh,even the alternator looks new. i would be happy with it if it were mine, maybe just throw on a chromed valve cover.