Generac Power Systems has released two gas-fueled engines specifically for use in several Generac Industrial Power systems: the Generac 9.0-L engine, which will be used on Generac 80 and 100-kW generators; and the Generac 12.9-L engine, which will be used on Generac 150 through 300-kW generators. The engines feature stainless steel intakes and exhaust valves to ensure durability and long life. Stellite, a cobalt-based alloy, makes the valve seats especially resistant to corrosion and wear. Valve angles were reduced to minimize the friction that can result from using dry fuel.mc1112-products-generac-300.jpg