Back from  Machine Shop serviced, cleaned and washed, new valve stem seals, New Fuel Injector hold down Studs.etc. Comes with Fuel Injectors included in Price!!! This high-performance Yanmar Marine Diesel Cylinder Head is a top-of-the-line product that will surely enhance the efficiency and power of your boat engine. It is designed to fit perfectly with Yanmar marine engines and is made with the finest materials to ensure long-lasting durability and maximum performance. With a horsepower of 440, this cylinder head is perfect for those seeking high-speed and powerful boat rides. Its high-quality construction ensures that it will withstand the rigors of marine use, making it a reliable and cost-effective investment.