VIN L54K
026652 breaks down as follows
L = 1-ton commercial54 = Year
K = Kansas City Assembly Plant026652 = unit number starting with 001001
Your engine serial number F929J breaks down as follows
F = Flint Engine Plant
9 = Month (September)
29 = Day
J = truck (depends on year as to which model it would be in)
This engine code format was used from 1957-59. To zero in on the actual year you need to look at the casting date code location behind the distributor. It will look something like this H 15 7 (Month/day/year).
Edited in RED, I corrected my first post where I had the plant and models backwards, sorry for the confusion...Mike B
