How many non moving parts of engine?

The engine block, cylinder head, and oil pan are the three main non-moving components in an engine. These parts house and support the engine's moving components.

Engine block: The heart of the engine, it houses the cylinders, crankshaft, and other internal parts.

Cylinder head: Sits on top of the cylinder block, containing the combustion chambers, valves, and camshafts.

Oil pan: Located at the bottom of the engine, it stores oil and keeps it cool.