Perhaps he is talking about this movie?
http://en.wikipedia.org/wiki/Tough_Guys
Of course Hot Water is being persnickety-literal as usual. The OP of course means the "SOUTHERN Pacific COAST Daylight" the run synonymous with Southern Pacific 4449, which is the locomotive that starred in "Tough Guys" with Burt Lancaster and Kirk Douglas.
The train wasn't called the Southern Pacific Coast Daylight in the movie, so sue the OP...