"In actual fact, there was a stock PCV system available on some AD models in 1954, but good luck finding one!" (Deve)
There are minor (somewhat insignificant) mistakes in Deve's write-up :
- a PCV system was available on slow-moving delivery trucks as of 1948 and later years (it became standard equipment in those slow-moving, door-to-door milk/bread delivery trucks {"step vans")).
- a PCV system was available as an option on ALL model 1954 trucks (and probably later).
A PCV system is a very valuable (necessary) item if you do a lot of slow-speed, and/or, stop and go driving.
Using/adding a PCV system, if done properly, causes no harm.
However, there is no need to add one for most old trucks, that have engines in good condition.
Consider your driving conditions, and do what you have to do (and, if you do not need the system, do what you like).
