DAS 19,
...There are no hard rules ultimately, but I don't know how much sonic love you will get out of that.
Compared to a reel-to-reel machine, cassettes just don't have that good a signal (signal-to-noise, wow/flutter, freq response) nor the overhead in the rec/repro electronics to be hit hard the way a good r-to-r can.
You won't get the silkiness of a wider-track r-to-r. You would get a different-sounding track, most likely with a bit of noise and/or distortion on it, depending on how hard you hit the cassette. But give it a shot.
I would say one way to get an audible and perhaps usable special effect out of it would be to dub onto a really cheap cassette deck, to get some crazy artifacts and by-products into the sound and mix that back with the clean track. That may not be what you are after, but just an idea.
You must also bear in mind that as the cassette track rolls along when you dub it back, it will start to drift on you compared to the original track.
Depending on the length of the vocal lines and the quality of the cassette transport, some editing most likely will be needed to re-align portions of the tracks.
Hope this is of help,
Best,
C.