Don't bet on it.  We measured with the oil pan off the engine when I was
having oil pump pickup problems.  It was a bit unscientific, but 4 quarts of
water fit in the pan when the bottom of the pan was on a level surface.
Certainly, the oil sloshes, splashes, and drains all over the gasket on the
lower side of the engine.

Mike Snow

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I'm pretty sure that the static oil level in the pan is above the gasketed
joint between the oil pan and block on the left side of the engine.
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