Tiny has this covered.

Either the Engine Serial Number or the Vehicle Serial Number was used in the USA. I prefer the Vehicle Serial Number. He does not have that code.

Either one is unique in 1954.

The engine might not be a 1954 engine, however (things get changed over 60 years).

What is the engine serial number?

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.