The Mould King JZK V8 Hyper Engine technic set offers a 1:1 scale mechanical model of a V8 engine. With 3,192 building blocks, you can construct a highly detailed engine model measuring 53 x 44.5 x 30.3 cm. Using a manual crank system, all eight pistons move in the correct firing order. The integrated 4-speed gearbox allows for four different gear ratios. The purely mechanical design requires no batteries or electronics and makes an ideal display piece for tech enthusiasts.