Dug WWII Aircraft Piston?

[MilitariaCollector]

I recently bought some boxed lots at a local auction, and this piston was in a box marked "Crashed WWII Bomber Parts". The piston is 4.5" in diameter, and about 6 1/8" high. I dont see any markings on it. Can anyone tell me what this piston may have belonged to? Is it from an airplane, or is it automotive? Any help is appreciated.

 

[MilitariaCollector]

Top of piston

 

[Charlie P. (NY)]

Here is a piston from the Pratt & Whitney Double Wasp as used in the B-24 and B-26 bombers

The B-17 and B-25 used the Wright Cyclone radial

Those two engines probably made up 85% or more of the engines for all U.S. bombers.


But there were LOTS of bombers in WWII.

 

[uglymailman]

Foreign bomber? B-26? What did the Torpedo Bombers have in em? Good luck.

 

[ole_grisley]

was there any other parts in the box? that might help narrow it down.