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The cylinder head of a diesel engine is a multi-functional entity, decidingthe performance and emission parameters of the engine. It also acts as a structural and sealing member. It accommodates ports for gas exchange process; injectors for combustion process, cooling passages optimized for heat transfer, valve train mechanism, and lubrication circuits and in addition in our case integrated common rail fuel injection pump drive and systems. Aluminum is light weight with benefits. Combustion is direct injection subject to higher thermal and mechanical loads, it must be robust enough to withstand the high operating temperature and peak firing pressure. The design and development of effective Intake and Exhaust Ports remains critical to improve volumetric efficiency. Compactness not only helps in packaging by having optimum LBH but also in making it light.