^^^^looks a lot like the V-12 Ford built for Sherman tanks.
That would be the Ford GAA (in Sherman tanks) & the GAF (in Pershing tanks) & GAN (in T23 tanks) which are of a 60° V8 configuration, and a GAC (in T29 & T30 heavy tanks) this version was a V12 engine.
I have a GAA V8, I'm still trying to figure out what car to build around it. They're a 60° V8, at 1100 cubic inches, 180° flat steel crank, pent-roof combustion chambers, 4 valves per cyl., dual overhead cams, operating buckets over valves, dual mag. ignition, aluminum block & cylinder head construction, all the modern stuff, ala the 1940's; they're physically larger than the photo-shopped V-12 Cammer.
You know, if you drop one from high enough, it'll fit..........right!
Scott.