block questions

I just googled mopar decode vin numbers.
The motor I just got from him is out of a 69 b body an it states the motor is a
383ci v8 4bbl HP [B motor]
Then I entered my vin and it read back the same thing as far as the motor goes
It said
383ci v8 4bbl HP [b motor]
Does that mean A bodys didn't have there own code? I guess that would explain why we can't find info on A body 383 block casting numbers??

FWIW
I have a 69 bb 383 fastback barracuda

The only way to tell if its a gennie 1969 A body block will be the VIN stamped on the block...should be "LS2_H9XXXXXX"...." for a Dart, and "BH2_H9XXXXX for a Barracuda, I believe. "H" is engine code for 383 in an A-Body.