The 5 events of an internal combustion engine are Intake, Compression, Ignition, Power, and Exhaust. Only 1 of its 4 strokes delivers energy to the crankshaft. The cylinder head attaches to the cylinder block. A gasket makes a seal between them.
Some cylinder blocks have passages to carry oil and coolant.
The cylinder head attaches to the cylinder block. A gasket makes a seal between them. Some cylinder blocks have passages to carry oil and coolant. Ports in the cylinder head or walls carry air-fuel mixture and exhaust gases. In 4-stroke engines, valves open and close the ports.