So I started replacing the head gasket just as the pandemic started. As would have it, working from home, taking care of family etc. etc. my LC fell to the bottom of my 'to do' list. Im determined to finish the job in the next couple of months (fingers crossed). At this point the head is off and the block has been under a plastic tarp inside a moisture free garage. What is the longest time has anyone kept the motor open before buttoning it up? Thanks for looking, Eddie