PRICES MAY VARY. 【V12 Engine Building Kit】Mould King Engine Series - The V12 engine, a type of V-engine, has cylinders arranged in a 90-degree V-shape. This type of engine can effectively counteract vibrations during operation and provide more stable performance. 【Build your Own Engine Model】This product is powered by the equipped battery and reproduces the dynamic principle 1:1 for you. Its compact design allows for high power output in the limited engine compartment. The drive train works with precise piston movements. Four speeds can be adjusted by moving the gear lever. 【MOC Engine Model】Mould King V12 Engine building block kits is assembled from 3472 building block parts and has colorful paper instructions to help you easily assemble it. This building block kit compatible with mainstr