Identify this engine?

[OldGeezer]

This has been sitting outside a local auto restoration shop for the past year or two. I can't find any ID tags on it, any idea what it might be?

 

[cammerjeff]

It looks like a Wright 1820 to me, but others may be better at IDing it.

 

[Snautzer01]

Jacobs r915 perhaps.

 

[Simon Thomas]

I'm with Cammerjeff - I'd guess a R-1820-G series judging by the cooling fins. The early F series had rather thick fins. The later H series had crazy thin fins.
Nice E-type in the background. I have a soft spot for wire wheels.