Ford flathead V8 i.d. please type ☆B18F☆

[dutch deuce]

In a few days i have to register my 32 tudor for a Dutch registration.
Original engine was cracked and not worth repairing.
For registration i probably have to prove where it came out and what specifications it has.
Engine now be a 1937 out of probably a firetruck.
Engine number starts with ☆B18F☆
Anyone has an idea where it came out originally.
Some numbers also look odd .
Any help is appriciated