: It contains passages for coolant to flow through, absorbing heat to prevent the metal from warping or melting. Key Components Inside
: It houses the intake and exhaust valves that open and close to let fresh air in and spent gases out. cylinder head
Think of the engine block as the foundation and the cylinder head as the brain that orchestrates everything inside. Its primary jobs include: : It contains passages for coolant to flow
: It forms the "roof" of the cylinders, containing the extreme pressure generated during ignition. Its primary jobs include: : It forms the
: The internal tunnels through which air and exhaust travel.
: While not inside the head, this critical seal sits between the head and the block to keep oil, coolant, and compression separate. Common Issues to Watch For
: In many modern designs (Overhead Cam), the camshaft is mounted directly in the head to operate the valves.