[oletrucks] Water pumps

[Sam Jenkins <scj@stpsb.k12.la.us>]

I had my 54 3100 for about 10 yrs thinking it had a 54 235 engine.
However, the water pump I ordered for it is not the right one. The
company people said it was '57  235 and had a different kind of water
pump. How do I tell exactly what year of the engine? Anything else about
the different years of 235 would be helpful. Thanks.
sam

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