The 4 cyl in the Jeeps was the Willys 'Go-Devil.' It was not a Continental engine. Bantam won the design contest when the bids were submitted , but the government knowing Bantam had financial troubles as well as troubles with capacity wanted the Willys engine, and manufacturing capacity. However even Willys couldn't keep up with demand, which is why Ford also got a contract.
The Willys was originally called the MA for "Military model A"
The Ford was "GP", with "G" for a "Government" type contract and "P" commonly used by Ford to designate any passenger car with a wheelbase of 80 inches
When Willys combined the best parts of the Bantam and Ford into their design it became designated "Military Model B" or MB
When Ford was given their share of the contract they used their original designation with a W becoming GPW or "Government, 80" Wheelbase, Willys Licensed design"
It is also believed in some circles that Willys gave Ford inaccurate blueprints to build the Ford version of the 'Go-Devil engine' as many people believe the ford built engines during the war were far less reliable.
The Willys L134 was never a Continental engine, it was evolved from the Willys 77 engine from 1933.
The Continental 134 CI engine is only the same as the Willys as far as the CI goes, bore, stroke and even distributor placement is different.
The Go-Devil was a WILLYS design.
Also, the 9N motor is around 23hp [@ Drawbar] isn't it I'd venture at the crank it would be similar to a Model A at around 40ish, but it seems I am having trouble finding that spec? The Go-Devil is 60hp at the crank.
I never have known the crank HP for a 9n/8n/2n
Ol' Henry probably didn't have many dealings with the WW2 stuff it may have been left to Edsel and other board members maybe?