Pulled this engine out of 1954 1 1/2 ton I believe its a 235
The numbers by the starter conv1 j1856
The numbers beside distributer TT023A
Block casting 3837004
J1856 = Date of casting (October 18, 1956
Engine Code T023A
T = Tonawanda Engine Plant...Not sure why you show two "T"s
02 = Month (February)
3 = Day
A = Regular 235, passenger car
Lacking a serial number this engine had to be assembled in 1957.
Casting number 3837004 is a 235 block used from 1955-57
Mike B

EDIT, Steve J makes a good point on the second T...if it's a one then my above date code is wrong...