Found these ...just make sure they are not Chinese ! The Italians in general make good engines. http://stores.ebay.co.uk/deltastore-technology/MOTORI-DIESEL-/_i.html?rt=nc&_fsub=1633426017&_sid=261385687&_trksid=p4634.c0.m14.l1581&_pgn=1
Looks a good un, http://www.ebay.co.uk/itm/YANMAR-L100-CYLINDER-HEAD-/290837542075?pt=UK_BOI_FarmingEquipment_RL&hash=item43b744b4bb,just thought i`d link it in case you have the head off and found damage.
Lee, they may be supplied from Italy but it does not mean they are Italian. I would say the Lombardini's are what they say but the rest look to me like they are snides. I smell beansprouts not pasta I may be wrong though
Just enlarged on of the photos...it says kippor. Kippor is high end chinese crap! Then again loncin are making engines for BMW! http://www.youtube.com/watch?v=oXbt8NPaeoQ