Although their appearance differs I imagine the stats for Type-8 to be similar to the Enterprise's Type-6.
The Type-9 shuttlecraft design was converted by Tom Paris into the Delta Flyer, mainly because he wanted more comfort and to build his own personal 'hot-rod'. This caused the Delta Flyer's structure to weaken at first, but even this problem was solved in the end. So their stats should be similar as well.
The stats for both the 'Type-6' and the 'Delta Flyer' can be found in 'Book 4 Starships'.