High Quality Content by WIKIPEDIA articles! A monobloc or en bloc engine is an internal-combustion piston engine where some of the major components: cylinder head, cylinder block, or crankcase are formed, usually by casting, as a single integral unit, rather than being assembled later. This has the advantages of improving mechanical stiffness, and also improving the reliability of the sealing between them. Monobloc techniques date back to the beginnings of the internal combustion engine. Use of the term has changed over time, usually to address the most pressing mechanical problem affecting the engines of its day.

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