Best 8 Cylinder Engines (2024 Update)

Introducing the most popular 7HP gas-powered engine that is designed to cater to all DIY or professional applications – the 7HP OHV 4-Stroke Recoil Starting Gas Engine. This powerful engine is capable of delivering high RPM speeds and powerful torque, making it a solid choice for hardworking Americans.

Built to exceed industrial-grade quality standards, this engine is manufactured to meet OSHA/ISO regulations and is EPA3 LCRPS.2121GC-010/CARB(U-U-169-0418) certified and approved. You can trust this engine to provide dependable performance, making it a reliable choice for all your needs.

The 7HP 209cc Horizontal Cylinder 4 Stroke OHV Recoil Starting Gas Engine boasts impressive gearhead specs. It has a maximum output power/speed of 4.3kW/3600RPMs and 8.85Ft-Lbs/12.4Nm of torque @2500RPMs. The counterclockwise rotating PTO ball bearing support shaft has a diameter of 3/4" x 2.43", a 3/16" straight keyway, and a 5/16”-24 UNF end tapered. The compression ratio is 8.2:1, with a bore x stroke of 74.5mm x 48mm. The valve clearance (cold) intake is 0.05-0.10mm, and the exhaust is 0.05-0.10mm. The engine also features a universal 4 bolt mounting pattern of 6.38"/162m x 3.17"/80.5mm.

The engine has been designed with superior product integrity to ensure the operator's safety. Always operate the machine according to the directions in the user manual and wear appropriate ANSI standard hand and eye protection. Please note that engine oil is not included and must be added upon unboxing. The engine runs on unleaded 87+ octane gasoline, and it is recommended to use 10% or less ETHANOL. The max fuel capacity of the engine is 2.6 gallons.

When using this engine, safety and proper use are crucial. Always operate the machine according to the directions in the user manual, and wear appropriate ANSI standard hand and eye protection. It is essential to use this engine for approved applications only.

Looking for a fun and educational activity that you can enjoy with your family? Look no further than this engine assembly kit, which includes over 350 high-grade aluminum components that will provide hours of entertainment and education.

Assembling the kit is a great way to learn about the basic principles of a modern V8 internal combustion engine and how all of its parts work together. In fact, it's so informative that it's perfect for use in your child's science project.

Once the engine is assembled, it's a wonderful piece of "shelf candy" that you can proudly display in your office or on your desk. Its unique design and excellent workmanship make it a great conversation starter, and it's sure to impress anyone who sees it.

It's important to note that this is not another kind of Stirling engine. Rather, it's a model of an 8-cylinder, 8-cycle gas car engine that runs on two electric motors powered by a 500mAh rechargeable lithium battery. If you're curious about how to assemble it, you can watch a YouTube video on the NDA Hack channel titled "How to Build Car Engine Assembly Kit – Full Metal 4 Cylinder."

Looking for an engine that can provide outstanding power for your log splitter or chipper shredder? Look no further than this 301cc 10hp horizontal single cylinder 4-stroke OHV engine. With a maximum torque of 13.28ft.lbs, a compression ratio of 8.2:1, and a maximum speed of 3600rpm, this engine is sure to get the job done.

When it comes to shaft specs, this engine boasts a 1" diameter and 3.48" length, as well as a 1/4 inch PTO keyway and 3/8 inch – 24 UNF end tapped. And with a 1.2 gal fuel tank and the ability to run on 87+ octane stabilizer treated unleaded gasoline, this engine can run for up to 4 hours at 50% load with a full tank. It also has a 1.16 quart oil tank.

This engine is a great replacement option for a variety of engines, including the Honda GX270, Briggs & Stratton XR 1450, Kohler CH395, and Yamaha MZ300. And with features like force air cooling, a splash lubrication system, and a low oil shutoff function, this engine is designed with safety in mind.

Please note that oil and gasoline need to be added for first use. Get ready to power up your equipment with this reliable and high-performing engine.

Experience the thrill of building your own mini V8 engine with the Assembly Engine Kit! This comprehensive model toy comes with over 500 parts, providing hours of fun and a challenging assembly process for experienced builders. It is not recommended for children under 14 years old due to small parts, so young ones may need adult assistance.

Aside from being a fun activity, this educational toy is also a great teaching tool for demonstrating energy transformation or as a science project for kids. Its incredible design also makes it a perfect display item for office desks or as a creative birthday or holiday gift for both kids and adults who love model building kits!

Constructed with high-quality aluminum alloy and stainless steel, the Assembly Engine Kit is built to last. It is powered by a lithium battery with a capacity of 3.7V and 800mAh, which can be charged using the accompanying DC 5V charger. The charging time is only 2 hours, and the kit can run for up to 1 hour. With an assembling difficulty of 5 stars, it takes about 5 hours to complete the assembly process. Once assembled, the dimensions of the engine are 6.7 x 7.8 x 7.1 inches.

The V8 engine is driven by a motor, which adds to the realism and interest of the simulation model. You can observe the engine running process throughout the assembly process, making it an engaging and interactive experience. Not only is it an exquisite decoration model, but it is also a simulation dynamic model that can simulate the operation of a real engine.

The Assembly Engine Kit comes complete with over 500 parts and a user manual for easy assembly. The necessary tools are also included, making it a hassle-free experience for both beginners and experienced builders alike. Get your Assembly Engine Kit today and enjoy the satisfaction of building your very own mini V8 engine!

Introducing the Two Cylinder Engine, a powerful and visually striking generator that will captivate any onlooker with its rapid flywheel rotation and flickering LED lights. This engine boasts a dual cylinder that can reach a voltage of 4-9V, making it a force to be reckoned with.

Crafted with precision and care, the Two Cylinder Engine is made with top-of-the-line materials. The base, bracket, and two flywheels are constructed with 6061 aluminum alloy, which is known for its high strength, weldability, and corrosion resistance. The power cylinder and power piston are made of SUJ2 material with a fine grinding surface and special treatment, resulting in high hardness and no wear during high-speed, ultra-long running. The axle joints are connected with miniature bearings of high precision, ensuring stability without lubrication. The power and heat cylinder is made of brass and 304 stainless steel, which guarantees a long service life.

Operating the Two Cylinder Engine is simple and straightforward. All you need to do is fill the alcohol burner with 95% alcohol (recommended fuel), light it, and let the round-ended cylinder burn for about 20 seconds. Then, give the wheel a gentle push, and it will run like a charm. The engine can run for over 8 hours continuously without breaking, as confirmed by one of our satisfied customers.

This engine is much larger and heavier than most stirling engines on the market, weighing in at 4.8 lbs. Its weight ensures that it runs stably on any surface, making it an ideal addition to any tabletop or workbench.

The Two Cylinder Engine is not only a stunning piece of machinery but also a fantastic gift. It comes elegantly packaged, making it a presentable option for a wide range of applications. This engine is an excellent gift choice for kids' science projects, physical/mechanical learning, teacher’s demo props in the classroom, or as a birthday gift for friends, families, parents, and kids. Many of our customers come from schools and colleagues who appreciate the quality and craftsmanship of our product.

Experience the power and elegance of the Two Cylinder Engine, and add it to your collection today!

The V8 Engine Model Kits are perfect for those who want to experience the wonderful world of mechanical engineering in an immersive and interactive way. With its highly textured metal parts, this kit is designed to provide a complete and realistic experience of building your own V8 engine.

This kit includes over 500 pieces and comes with a paper English instruction book, allowing you to experience the entire process of assembling the engine from small parts to a complete product. The V8 engine can be driven by a motor, making it even more realistic and interesting. You can observe the engine running process throughout the assembly process, making it not only an exquisite decoration model but also a simulation dynamic model that can simulate the operation of a real engine.

This product is not only an excellent model for those who are interested in mechanical engineering but also an excellent parent-child toy. Adults can assemble it with children to enhance parent-child interaction and provide children with knowledge of science and industry, increasing their knowledge and imagination. Additionally, assembling this kit can develop mental and logical thinking and develop innovative and creative abilities.

The V8 Engine Model Kits are packaged in high-end metal gift boxes, making it an excellent gift choice for friends and relatives. The product is perfect for anyone who is interested in mechanical engineering or wants to experience the thrill of building their own engine. With its complete accessories, simulation model, and excellent parent-child toys, this kit is an excellent investment in both education and entertainment.

The Four Cylinder Engine is a powerful device that is sure to impress with its voltage capacity of 4-9V. The flywheels rotate rapidly, causing the LED lights of the generator to flicker wildly. Its impressive performance is sure to catch the eye of anyone in its vicinity.

Crafted with precision, the engine's base, bracket, and two flywheels are made of brass with high strength, weldability, and corrosion resistance. The power cylinder and piston are made of SUJ2 material that has undergone special treatment with a fine grinding surface for high hardness. The axle joints are connected with miniature bearings of high precision, ensuring stability without the need for lubrication. The power and heat cylinder is made of brass and 304 stainless steel, providing it with a long service life.

Operating the engine is a breeze, simply fill the alcohol burner with 95% alcohol (as recommended) and light it. After approximately 20 seconds of letting the light burn the round-ended cylinder, give the wheel a gentle push and it will run smoothly. It is designed to run continuously for 8+ hours without breaking down, as tested by a satisfied customer.

The engine's weight is much heavier than most stirling engines you can find on the market, weighing in at 8.16 lb. This added weight gives it stability and allows it to run smoothly on any table.

This engine is an excellent value for its price, and its elegant gift packaging makes it a great option for many applications. It is perfect for kids' science projects, physical and mechanical learning, teacher's demo props in the classroom, and as a birthday gift for friends, family, parents, and children. Many of our satisfied customers come from schools and colleagues who have used the engine for various educational purposes.

This engine decoration is made of high-quality resin material that is durable and perfect for decorating various styles of rooms. It is designed as a model toy and is highly detailed and precisely crafted to resemble a real engine. This small engine is not only stylish but also very educational for those who want to understand how a four-engine works.

The engine decoration is based on historical classic inventions, presenting the core principles of machine operation. It is a great model kit that showcases the beauty of mechanical engineering in an immersive environment. Each part of the kit is carefully crafted with polishing tools, perfectly interpreting the creation and evolution of human wisdom in the field of big industry.

This resin craft is a creative desktop accessory with a resin plating color process. Some parts of each product may vary as they are handmade. It is a great addition to any collection, especially for male collectors. The engine model kit is perfect for encouraging young boys and girls to expand their creativity, logical thinking, and intuitively demonstrate the core value of the machine.

This engine decoration is a proportional modeling with high reduction, making it a great learning tool for adults when gathering with children to enhance parent-child interaction. It is also a great way to give children scientific and industrial knowledge, increasing their knowledge and imagination, developing thinking and logical thinking, and cultivating innovation and creativity.

This cylinder head cover kit is designed to fit Honda GX160 and GX200 engines, as well as China 168FA/168FB models. The kit includes a cylinder head cover, cylinder gasket, and four bolts, making it a complete replacement for parts with numbers 12310-ZE1-000, 12310-ZE1-010, 12310-ZE1-020, 12310-ZE1-840, 12310-ZE1-841, 12310-ZE1-842, and 12391-ZE1-000.

When purchasing this kit, customers can expect safe transportation from China and an estimated delivery time of 6-10 business days. Prior to or after their purchase, customers are welcome to reach out to the seller for any questions or concerns they may have. The customer service team is warm, responsible, and always ready to assist.

This cylinder head cover kit provides a reliable and cost-effective solution for those in need of replacing their existing parts. With its compatibility with multiple engine models and included components, customers can enjoy a seamless and hassle-free installation process.

Investing in this kit will not only ensure that the engine runs smoothly, but also prolong its lifespan. The cylinder head cover and gasket work together to protect the engine's internal components from damage caused by exposure to debris and other external elements.

The Playz Kids DIY Toy V8 Combustion Engine Models Kit is an educational and entertaining kit suitable for children and adults aged 8-14. This mini replica of a classic four cycle 8 cylinder internal combustion gasoline car engine engages young minds in fundamental STEM concepts about the world of mechanical engineering. It is also an all-in-one immersive kit, making it a perfect hobby gift for all ages.

The kit includes everything needed to build the engine model, including cranks, pulleys, belts, and exhaust valves. Children will love tinkering with these components to bring the gadget to life, making it an ideal take-home or classroom STEM project with real educational value.

What sets this kit apart is the realistic model that works just like a classic car engine, complete with powerful pistons and interactive cables. Simply plug the cables into the battery pack distributor and watch the engine fans turn around with real engine sounds. It’s the perfect educational STEM toy for aspiring engineers, curious minds, and anyone seeking an exciting blend of education and entertainment.

In addition, the Playz Kids DIY Toy V8 Combustion Engine Model Kit is an excellent way to develop critical thinking skills. Children can expand their creativity, think logically, and even refine their motor skills all at once.

This intuitive and engaging kit is a popular gift for birthdays, holidays, and other special occasions. It will inspire children to explore the world of STEM and keep them captivated by the excitement of creating and operating their own engine. From start to finish, it makes science, mechanical engineering, and technology exciting and approachable.