mould king L4 Gasoline Engine Building Blocks Kit Engineering - 14 years+ 1787 pieces

The Mould King 10087 direct-coupled four-cylinder gasoline engine (L4) is a common drive choice for SUVs, with four cylinders arranged linearly on a single crankshaft for smooth engine operation. This reduces vibration, and the ignition system ignites the mixture through the spark plug, ensuring stable power output. Details Shown - Precisely engineered piston and connecting assemblies to replicate true dynamics. The details of the internal mechanical structure accurately simulate the valve and ignition system, and the intake and exhaust paths completely correspond to the movement trajectory of the real engine. Building Fun - 1787Pcs engine building kit can increase your logical thinking skills! You can use your creativity, think logically, and improve your motor skills while having fun assembling a model L4 engine kit. Equipped with XL motor and a 9V battery box(require 6 AA batteries, not include), it will bring you kinetic energy surprise! STEM Project Choice- DIY engine building kit for boys and girls ages 14 and up. If you are looking for a cool STEM project for your kids or families. Such as birthday/New Year/holidays, etc. This engine model is a good choice. Professional Service - Engine models are made of high-quality, high-precision materials. Products are strictly tested before leaving the factory. If you encounter any problems when installing or using the product, please don't hesitate to tell us, we will try our best to deal with it!