A cylinder head is formed from a basic housing mounted on a cylinder block, which housing carries inlet and exhaust ports and valves, from a camshaft and bearing housing, supporting bucket tappets, and from a cylinder head cover. This cover is integrally formed with the upper parts of the camshaft bearings. The arrangement has a single parting plane on which both the basic housing with rising outer walls and the bearing housing and the cylinder head cover abut. The said arrangement has great rigidity and is easy to assemble. <IMAGE>
