I had a 3.6 l slant six in a ‘66 Dart, and a 2.5 l V6 in a Contour (Mondeo). “Smooth” and “Gutsy” are not words that spring to mind in thinking about them. The latter was a lot more powerful, being about 40 years newer. The Dart was super easy to work on because it only took up the passenger side of the engine…