Kharkiv model V-2

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The Kharkiv model V-2 (Russian: В-2) is a Soviet and Russian family of diesel tank V-12 engines, the V angle at 60°, with dual overhead camshafts per bank, four valves per cylinder opened by bucket-style followers and direct fuel injection. Designed at the Kharkiv Locomotive Factory by Konstantin Chelpan and his team, it is found in the BT-7M (BT-8), T-34, KV, IS and IS-10 (T-10) tanks, and by extension, the vehicles based on them, such as the SU-85 and SU-100 tank destroyers based on the T-34 and the ISU-122 and ISU-152 self-propelled guns based on the IS-2. Throughout its production life, output ranged from roughly 450–700 hp (340–520 kW). Successive variants of the V-2 have been used in multiple Soviet and Russian vehicles ever since. Derivatives of the V-2 remain in production, with the T-90A tank, Koalitsiya-SV self-propelled gun and BMPT Terminator armoured support vehicle equipped with a 1,000-hp V92S2, while the latest T-72B3 and T-90M tanks feature an upgraded 1,130-hp V-92S2F. Licensed production additionally continues in several countries.