My truck is a 54 gmc 9300 Canadian model that comes with a 235 .my 235 was changed when I got it and it has a newer 235 in it that has the waterpump in the lower position so when it is hot out and you are in standing traffic the temperature goes up . From this site I learned about the 54 engines having the waterpump in the same position as the older 216 engines .if your engine is newer like mine it will run hotter ,I am planning on getting a kit to relocate and use the older waterpump ,but in my area we don’t get the hot weather for long so it runs at the right temperature with the exception of the few times .
