I would say try it if you have it lying arround.
From the looks of it you will have some room to play with the gears.
On one of my cars(yes i have more then 1 TM ) i used the dremel to cut some material on the side tensioner and and the left back bulkhead to give the GM motor some room.
If i use the LRP X11 motor i won't have to do that as it got the tapered back side like the motor in your picture.
If it isn't your motor but you know the brand,go to your local hobby store and take the car with you and try it.
That is the best way to be sure it will fit and you got enough room to sort out the gearing you want.

cheers Roy