The invention relates to a cylinder head (10) for an internal combustion engine (1), including a deck (40) and valve seats (50) for positioning opposite a cylinder block (2); gas-exchanging conduits (60) extending from the valve seats (50) to inlets and outlets (64); and a water chamber (70) comprising a bottom (72) and a top (74). The cylinder head (10) is characterised in that it comprises a first module (20) including at least one pair (51, 52) of valve seats (50) and a valve bridge (58); and a second module (30) including at least the top (74) of the water chamber (70). The invention also relates to an engine (1) comprising such a cylinder head (10), and to a method for producing such a cylinder head (10).
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