I only have one LC Plus engine that has seen any significant run time at this point, but antidotal evidence says there shouldn't be any problem. Build quality varies from model to model, but all that I have seen suggests they are built pretty well for the price. My LC+ NW2 was run non-stop at low speed for something like 14 hours a day for several days and shows no sign of wear or damage from doing so. I expect higher speeds would put more wear on moving parts.
Some folks have reported LC and LC+ engines being shipped with very little grease on the gears, so you may want to check that they are well lubricated before putting an engine into long-haul service.
JGL
