Here are my guesses (someone will correct me, if I'm wrong):

3836233 = 1955-56 block - car or truck (mechanical lifters)
3835913 = 1954/55 head

01373501 55 Z
could that be?
0137350F 55 Z
0137350T 55 Z ?

http://www.1954advance-design.com/chev-specs/1955-1st-Chevrolet-t-ser.pdf

Most likely the codes near the starter area is:

CON 1 (not CONN) = Conveyor #1
and the Block date code:
B 3 55
B = 2 = February
3 = 3rd
55 = 1955 (is it one 5 or two 5s?)

Are you a diesel-engine person?