Rokuhan 0-6-0 Nn3 Conversion Kit #4
Changing superstructure of Z scale model to “modern” N scale coal or oil burning steam locomotive.

The Rokuhan Z-scale USRA 0-6-0 is a well-running, relatively affordable donor chassis for conversion to Nn3. This conversion kit is one of seven available for making that change to a NKP (No Known Prototype) N-scale narrow-gauge locomotive. These range from the simplest conversion of just changing the cab to the most complex involving adding a pilot truck to make a 2-6-0 and optionally changing the cylinders and valve gear. See the link to the posted instructions for detailed descriptions of this and the other conversion kits. Both oil and wood or coal tender shells are available separately.