According to a sample of the old cylinder head, we make the same, but a new cylinder head. This procedure is usually used to produce 10 or more pieces of the cylinder head, because of the profitability of the production.
Cutting of the 6 elements, but that corner cutting is not less than 60°, is an overview of head chamber,
which is the subject of development. Then, follow the development of nuclei of all chambers that fit into
the whole of the said head, to the end of the process of working metal mold capable of an appropriate casting
material under pressure.
This cast, after roughing is checking by ultrasound, in order to test possible porosity. Proven head forwarded to
fine machining, where it is implanted a valve seat, valve guides, etc.
