Some of the better Lionel engines are worthy of the conversion. I have a Lionel C&O Yellow belly Hudson that I had converted to a can motor and I put DCS in it. I also installed a fan driven smoke unit. Now I have a great looking locomotive with DCS. Out of the box, that engine was a real crapper as were many of the late AC motors Lionel used. Things are great today at Lionel with some very high end people running things.