The head casting of
3835913 is used on 54/55 235 heads.
The block casting is, I think, just above/behind the upper right of the starter (7 digits).
There are only slight differences between the car and truck engines for any given year: some differences in some years were: motor mount locations, hydraulic lifters (used on cars in some years - all years after 1956) vs mechanical lifters (all truck 235 used mechanical lifters), clutch housings, valve covers, style of vacuum advance mechanism on the distributor, engine color, air cleaners.
Many of the external and internal parts that differed between cars and trucks over the years (and in any given year) could be used on car and truck engines over a variety of years - making the casting numbers a good identifier (unless the same number is found on both a car and a truck).
Tim
The engine ID that is pressed into the block, just to rear of the distributor,
FI004A, might have been used between 1957-1960 on 235s installed in sedan deliveries (other people will have to confirm/correct this - I'm not at all sure):
F = built in Flint, MI
10 = 10th month of the year = October
04 = fourth day of the month
A = sedan delivery
