The American Cylinder Head Engine Cylinder Head is the perfect choice for those looking for increased durability and performance. This cylinder head is made of hardened steel, preventing defects in the engine parts. It also features stronger rib reinforcement at vulnerable cracking areas, allowing for greater power output and low fuel consumption. With its superior construction and design, this cylinder head will surely provide you with the performance and reliability you need. FleetPride is your First Click in Heavy Duty®.