Ok so heres the deal. I want to clean my engine bay and block and also paint the block. I wont be able to take the block out unfortunately. I will be cleaning all the parts i take off also. I was wondering if i take the head off will i have to shave the head before i put it on again? I already redid the gasket and had the head shaved once if that makes a difference. Another concern i have is leaving the car over winter with no oil or coolant in it. I live in Wisconsin so it can get pretty cold. Let me know please. Thanks in advance.