I have a '95 Lightning and a regular '95 F-150 with the 351W in it. In addition to the info. posted above:
Both trucks have the F4TE block, but only the regular F-150 has a roller cam installed in it from the factory.
Stock horsepower numbers are 240 for the Lightning, and 210 for the regular F-150.
The Lightning has dish style hypereutectic pistons and an 8.8:1 compression ratio, but I don't know what the regular F-150 has, though I've read that the compression ration is the same, and they always seem to mention the Lightning's hypereutectic pistons in a way that makes it sound like the regular 351W doesn't have them.