High performance cylinder head set for Piaggio and Gilera 125-180 engines.
55mm stroke and 65 or 65,6mm bore, Malossi, PM, stock 180cc,
Center sparkplug ( m14, original size ) therefore even better combustion chamber and increased performance over our 52 inner head.
Comes including all bolts and gaskets.
Recommended squish 0.9-1mm
Does not fit on Italjet Dragster without modification