Winterizing 7.4 efi on stand
 

I have a 7.4 efi merc. Engine out of boat/on a stand. It was test run down south but now is in n my garage w/winter on its way.
What are the steps to getting water out of block,fuel cooler,etc...
Any tips and advice?

Disconnect all water hoses and drain plugs in block....

reassemble and fill with RV antifreeze through the thermostat hole in the intake for added security

I would just drain it. Like said, pull hoses, block and manifold drains and you are done.

Pull all the hoses and drain plugs (on exhaust manifold and block drains) and blow compressed air through them. I drain my block and exhaust after each use.

Thanks to all

In Maine as stated I would drain and blow out, but then use car antifreeze or at least the -100 (purple) RV stuff. You guys get cold up there.