Special Cylinder head which can be offered with the following work.
Machined ports and combustion chambers.
Single or double valve springs
Valve Spring washers of aluminum or standard washers plus special valve locks.
New valve guides and valves, cut with 2 angles.
Comp Ratio depending on engine displacement mm.
MIRA machined valve seats.
Camshaft assembly not included.
All cylinder heads machined for what the cylinder head is to be used to, because there are no set price.