3836233 = 1955-57, 235 block (mechanical lifters)
3835913 = 54-62 235, 261, head
CON 1 B 3 55 or B 25 5
CON 1 =(not CONN) Conveyor #1
B = 2 = February
3 = 3rd day of month
5 = 1955
Source Patrick's
Casting number locations Click on pictures to enlarge.
0137350 155Z
0137350 = Units built
1 = more than likely a "T" = Tonawanda, NY, Plant where engine was built.
55 = 1955 Model year
Z = Type, Regular Engine, Originally installed in a Passenger Car
Source PDF, page 42
I believe the only difference between in a car block and a truck block.
Is the numbers/letters stamped into the flat machined boss to left of the distributor.