Designed and built on the chassis of the KV-1S. The development of a prototype started in January 1944. The 203-mm B-4 howitzer was mounted on the restored hull of a KV-1S. From March 1944 through to the beginning of April, the vehicle underwent trials. Despite successful trials, the S-51 never entered mass production.
S-51 equipment 2.0 builds you can put on this tank in World of Tanks. Equipment setups based on Skill4ltu and Yzne configurations. If you have any suggestions about equipment builds or want to add some, feel free to message us using contact form.