How long can engine be static?

[dhopkins]

I am refreshing my 69S engine. I have the heads and cam towers off. Recently I have started to worrying about letting the pistons/cyc sit in the same position for so long. I started this project last November but it is taking a long time waiting for ordered parts to arrive. Should I worry about rust or pistons/cyc rusting together? I read somewhere that an engine should turnover at least one complete revolution every 3 months to prevent damage.

Don
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1963 356B Super
1969 911S
1981 911SC

[911pcars]

If you want to exercise the engine, secure the cylinders in place, then rotate the crank on occasion. However, if parts are coated in engine oil, there shouldn't be a problem.

Sherwood

[kenikh]

Hey Don, want to trade your '69S heads for some 2.2 heads and cash?

[dhopkins]

How much cash? Why are 2.0 heads worth 2.2 heads plus cash? Also, my mechanic has told me that on a 69 the heads and cyclinders have surfaces that mate together which are unlike any other year b/c there is a raised area on the cyclinder and a matching recess on the head. He says other years don't have this.

Don

[kenikh]

2.0S heads have some additional value since 1969 is the cutoff for vintage racers. They can't use 2.2 heads legally, so they are more desirable to some folks. I need them because my car has non MFI heads and I need these correct haads to install my MFI and make my car correct. Let me do some more research and get back to you.

[dhopkins]

I will wait to hear from you.