IHC - Riviossi Pacific

Does anyone know what kind of motor IHC or Riviossi Pacifics had. I am interested in the blue Comet which came out a few years ago. Also, how did they run/ thank.

I’ve got a Riv Pacific with can motor and it ran fine for a while. The gear box shafts broke and other areas of the gear box. This was after about two years of limited use. I couldn’t get parts, so had to make a new gear box

Richard