-50 degrees
If you keep it wrapped up well, I would think the only thing you would have to worry about would be a sudden warm spell. If it warmed up fast enough you may have a problem with condensation occurring on or in the cold engine.
I'd pull the plugs, pump some oil into the cylinders, turn the crank by hand a couple of times, then put the plugs back in. If you are really ambitious, you could back off all of the rockers so the valves will be closed.
Might be a good idea to wait 'till it warms up a tad, even if it is a dry cold.
Ken
Backing off all the rockers is a good idea. Also, put Mobil1 in it and run it first if you can to flush out all the old oil. Dyno juice will degrade and sludge up over time in cold temps. And if you don't think you can get all the coolant out, run 70/30 through it. That will get you a freezing temp of -54F for any of the remainder that stays in.
Last edited by jewce; Dec 15, 2008 at 07:39 PM.


