14CC DIY 4-Cylinder Gasoline Engine Model - 4-Stroke Inline Engine Kit, 13500RPM, Educational Build & Collector's Project

🔧 [DIY Assembly Kit] This 14cc inline 4-cylinder engine model comes as a complete build kit with precision metal parts, perfect for learning engine mechanics and assembly techniques through hands-on construction. 🏎️ [High-Performance Design] Features a gold sports-inspired design with upgraded 90° phased crankshaft, reaching 13500 RPM. Dual oil-seals prevent leaks while dual synchronous pulleys ensure stable high-speed operation. 🛠️ [Professional Upgrades] Includes improved OHC valve system (3.5x lifespan), high-angle camshaft for better throttle response, and redesigned carburetor/intake for easier starting. Enlarged oil sump allows future lubrication upgrades. 🎁 [Mechanical Enthusiast's Dream] Ideal for RC model modifications, desktop display, or as a premium gift for engineers and car enthusiasts. Build your own fully functional 4-stroke gasoline engine. ⚙️ [Educational Engineering Project] Perfect STEM learning tool to understand 4-cylinder engine principles. Requires 92#+ gasoline and 6-12V power (sold separately). Water-cooling parts not included.