Basic Engine Topics Basic Engine Topics Basic Engine Topics are going to include Crankshafts, Cylinder Heads and Engine Blocks. The engine is constructed from many different parts. These parts are usually referred to as: bottom end, top end, front end, oil pan, valve cover, and front cover. Most of the repairs will require the help of a qualified machine shop. Breaking these into the 4 main groups is how we will talk about them. Search Our Site or Choose Your Topic Below ! Crankshafts Cylinder Heads Engine Blocks Connecting Rods Stay tuned for more updates on: Basic Engine Topics.