I guess from the term "remanufactured" we are talking about a completely overhauled older engine
. In this case you would want to know what was done to the engine
it, what new parts
were installed, what the warranty period and conditions are and whether there is certified documentation
on the cooling water
flows from when the engine was tested.
Many engines are changed out for overheating
issues and you need to know that the head
jacket waterways have been cleared out and tested for the required design flow.