Precision DIY engine kit with precisionmanufactured parts for straightforward assembly using the included instructions. Designed to teach engine structure and mechanical principles while delivering a realistic sportsinspired gold appearance. Key benefits Easy assembly and learning Precisionmanufactured parts and clear instructions make the kit suitable for hobbyists, students, and technical demonstrations. Handson assembly deepens understanding of engine components and operating principles. Stable speed performance Long stroke design with a dual seal on the crankshaft prevents leakage and maintains stability during speed operation. Added support bracket enhances crankshaft stability and reduces vibration at rpm. Smooth, responsive operation Integrated 90 degree phased crankshaft delivers smoother rotation and improved responsiveness, reaching a maximum speed of 13500 rpm. angle camshaft contributes to efficient valve timing and engine response. Durability and reliability Upgraded valve manufacturing process increases valve lifespan by approximately 3.5 times. Dual synchronous pulley timing structure reduces the risk of speed timing tooth skipping for more reliable operation. Easier startup and improved intake Redesigned carburetor with a matching needle simplifies engine starting and tuning. Newly designed intake manifold and enlarged sump improve intake efficiency and conversion rates. Technical highlights and attributes Function: Educational model engine kit for assembly, demonstration, and display Performance: Maximum speed up to 13500 rpm; improved valve longevity by 3.5 times Crankshaft: Integrated 90 degree phased design; long stroke with dual seal; support bracket for speed stability Timing: Dual synchronous pulleys for reduced skipping risk Induction and fuel: Redesigned carburetor with matching needle; intake manifold design Other: Enlarged sump to improve conversion efficiency; angle camshaft for better valve actuation Materials and construction: Precisionmanufactured components for accurate fit and reliable operation Compatibility and applications Compatible with model engine stands, educational test rigs, and common hobby engine mounting setups Suitable for use in scale model displays, classroom demonstrations, engineering training, and hobbyist projects Use scenarios Hobbyist engine build Assemble the kit as a display engine for a model car or model aircraft, learning internal layout and operation during the build. Classroom or workshop demonstration Use the kit to demonstrate combustion engine principles, timing, and valve action in technical or vocational lessons. Performance tuning practice Practice carburetor adjustments, timing checks, and speed stability improvements in a controlled workshop environment. What makes this product stand out Combines educational value with performanceoriented design features Precisionmanufactured parts and clear assembly instructions lower the learning curve Specific engineering improvements target stability, responsiveness, and component longevity Package includes Precisionmanufactured parts and assembly instructions as described above This kit delivers a practical balance of learning, realistic appearance, and performance features for hobbyists, students, and technical users who want a reliable and instructive model engine experience.