It would depend on where the core holds the bolometer settings, as you must have those as well as the calibration tables if they are not one and the same file.
If I was FLIR I would have made sure those settings were omitted / unsafe default on the low range cameras.
File swapping between cores with a similar setup though is likely to be OK as the flat field (one point, shutter) should fix the main sensor differences to probably give a credible image.
You certainly will not get the same accuracy of temperature reading, and it could be wildly out, depending on how lens calibration is handled.
The above is based on ASi sensors, I can swap sensors between the same core boards and get images without a new 2-point calibration. I would expect that a Tau VOX should be better on consistency. I don't know enough about how FLIR deal with different lenses.
Bill