Description: Efficient Design for This TOYAN B400 Engine:Highly restore the realistic mechanical operation with precise camshaft, seperate intake & exhaust, 180掳 crankshaft precision machining, precision pump-style carburetor. Besides, realistic exhaust pipe conveys a robust and powerful sound effect, high-speed fan with air duct for efficient cooling, as well as the high-quality transmission belt reduces the risk of gear skipping. .Powerful Performance:Experience the perfect combination of power and efficiency with the horizontal opposed four-cylinder engine model in precision engineering and advanced technology, delivering impressive horsepower and torque, ensuring exhilarating power output while maintaining outstanding performance. .Reliability and Durability:This TOYAN B400 Engine is made from high-quality metal with CNC machining for long-lasting durability. Long-term reliable performance, reduce maintenance costs, and keep your engine in optimal condition with simple maintenance procedures to ensure extend the lifespan. .Wide Application:Specifically designed for desktop experiments, DIY fuel vehicle projects to seamlessly integrate into various apps, making it an excellent choice for automotive enthusiasts and engineering mechanics. It is also an essential model for engine collectors. .Hobbyist's Delight: A powerful, reliable, and high-performance horizontal opposed four-cylinder engine that will take your passion for racing to new heights. Whether you are an experienced professional or just entering the RC racing world, this engine is the perfect companion to dominate the track and leave your competitors in the dust. .Warm Tips:Available in both Kit (assembly required) and Pre-assembled versions. Additional accessories for this TOYAN FS-B400 engine are needed to purchase, such as glow plugs, ignition modules, fuel tanks, fuel lines, and engine mounts according to your needs..Age Recommendation: 14-year-old +More Details:.Material: Metal.Brand: TOYAN ENGINE.Item No: FS-B400.Form: Assembled/KIT Version.Displacement: 4.2(3.5 x 4)CC.Stroke: Horizontally Opposed 4-Stroke.Cylinder Diameter: 16.68mm.Stroke: 15.40mm.Cooling Method: Air-cooled.Lubrication Method: Mixed Oil Splash Lubrication.Start Method: Electric Start.Ignition Method: Ignition Module.Spark Plug Type: Four-stroke F-type Glow Plug.Fuel Type: 20-25% Nitro Fuel.Lubricating Oil Type: Common Grease.Product Weight: 1850g.Package Weight: 2000g.Product Dimensions: 18.4 x 15.2 x 14.1cm.Package Dimensions: 20 x 20 x 20cm.Packing: BoxPackage List:1 x TOYAN FS B400 Engine Model1 Set Tool1 x Instructions