The last time I needed an air pressure check and adjustment, the AAA guy came out and did it 30 min. or so.
No searching for the best tire pressure gauge.
1948 was (as I understand it ) the first year that Ford installed the 8BA series flathead with thermostat housings to the front of the heads into pickups.
1949 was when they installed the 8BA series in passenger vehicles.
There may or may not be an engine date of manufacture code stamped on...
Offy used their 49-53 adapter castings for use on the early 32-48 application.
The oil fill and road draft holes were just not installed in the early intakes.
Never changed my 6 volt 2 speed heater motor in my '51 Merc.
Has been running on 12 volts as needed for well over 20 years.
Only difference is it runs faster just like the starter motor.
Recall that back in the mid 50's we used to take clocks to the local watch repair shop and he used to add a coating of platinum to eliminate most flash pitting to the points. Recall that the points in my aircraft engine were platinum.