I'd put this in technical for better answers.

I've never had headgaskets go bad from sitting. I've had some water or seals seep a little from drying out.

I use Stabil Fogging oil to shoot into the cylinders to prevent them from rusting while it sits.

When I go to re-start a motor that has been sitting I pull the valve cover and pour oil on the cams and down the timing chain.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

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