[Jack21]

If this is a fresh build, not a good idea. You'll wipe the break in lube off the cam, and the cam may fail when you start it up for the first time. If using roller lifters, you should be OK, no cam break in. If this is an already running and broken in engine, you should be OK there too. I'd just hose it down with WD40, crank it over by hand once to lube the cylinders and lifters, then put a plastic engine bag around it to protect it.