How to Make Your Car Last Forever: Avoid Expensive Repairs, Improve Fuel Economy, Understand Your Warranty, Save Money

The engine block is cast of aluminum or iron. All the necessary holes for internal components such as pistons,
camshafts, valve lifters, and bearings are cast into it. In addition, oil galleries for lubrication, water jackets for
internal cooling, and mountings for external components are cast into the engine block.