8. Parts of a Car Engine The engine in a Chevelle at the Nashville show When you actually take apart an engine, it isn’t as complicated as it appears. Some of the main parts you will find include: the air filter, spark plugs, block head, fan belt, water pump, generator, and the carburetor. I didn’t have the time to learn what the job of each individual part was, but I did learn that the parts have to be strong because the heat under the hood can reach 3,100 degrees F inside the cylinders.