Even the simplest car engine would have over 500 parts. There are many very complicated engines with thousands of parts.
carburetor
carburetor.
The radiator cools the engine.
There are many ways to obtain information. There are books available online, often at car forum websites, or car part websites, that offer free engine diagrams.
engine?
crankshaft
older engines have carburators
oops. what sort of tool and what part of engine.
The engine bay is the part of the car where the engine is.
the engine
the hood.
engine