+The **cylinder block** is the robust casting that forms the fundamental structure of an internal [engine](/wiki/engine). It precisely houses the cylinders where [pistons](/wiki/piston) transform fuel's explosive energy into motion, often integrating passages for coolant and oil.
+## See also
+- [Crankshaft](/wiki/crankshaft)
+- [Cylinder Head](/wiki/cylinder_head)
+- [Engine Block](/wiki/engine_block)
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