Warbird Information Exchange

Hi all-
Looking for some assistance in identifying this engine. Curious to learn if this is one of two engines of a potential aircraft, or if this was the primary engine of a single-seat aircraft. There is some other debris in the vicinity of the engine, but we are currently unsure if it's associated with the engine. The prop is a short distance away from the engine but only one blade is exposed. I tried to reveal the hub which was largely buried. Any thoughts to this engine and perhaps aircraft would be greatly appreciated!

Another couple images...

A location couldn't hurt.

Off Florida

The headers look like an R-2800 setup.

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"They done it, they done it, damned if they ain't flew." December 17, 1903

Closer and clear photos would be nice, the front shroud should be a key too. Lets see the nose and rear sections.

Thanks!

Hoping to get back out there to get a better look at the engine. Unsure if this was from a single-seat aircraft like a Corsair or wing-mounted engine from a PBY or something. Unfortunately a very common engine choice for USN aircraft...