Help identify this flathead

Anybody know the year of this flatty? Thanks in advance.

 

1949 to 1953 (or 1954 Canada and some big trucks)

 

i'm not a flathead expert , but that's a `49-`53 i believe

 

thanks alot guys!

 

Your welcome
It must have been built on before, They had head bolts not studs.
What heads were on it?

 

'49 - '53 truck.

 

Actually, 48-53 truck.

 

49 Commercial

 

The water pumps is truck the block is 48-53 "8BA" the color is says truck