The Small Block V-Twin Vanguard engine is designed-engineered to handle the most demanding commercial applications. Energetic and quick starting, these powerhouse engines feature a number of advanced technologies and integrated components, while also being lighter and more compact than leading competitor's engines. There are no substitutes when it comes to keeping engine powered equipment healthy, to maximize engine life, meet original equipment specs and provide full warranty coverage, always use genuine parts from Briggs & Stratton