Guys,
A heli engine has nothing to do with its internals, it has to do with the externals.
The airflow in a heli is different so the cooling fins are shaped different to take advantage of it.
Will a heli engine work on a plane?
If in a cowl you are probably looking at overheating.
If completely exposed you will probably be OK.
I suggest talking to tech support at the manufacturer.
KW_Counter