Hello!
This is a little something I started doing as I finished the Panther. I was feeling like doing a regular ISU-152, but since I got the later tracks and was offered drawings, I chose to convert it to an ISU-152K.
ISU-152M and ISU-152K are both modernized versions of the war time ISU-152. The engines were changed from a V-2K to a V-54K. While the M version remained looking the same, the K version's cooling system was different, so the engine deck has a completely different appearance.