How many core plugs are fitted to the cylinder block (2?) and what size are they ("11/16 ?) and whereabouts in the cylinder block do they go and finally are they called core plugs or cup plugs. Ordered some from John Craddock sent some cup plugs "1/4 and when I questioned what I had ordered core plugs the man at craddocks is sure I have ordered what i wanted and there are many sizes of core plugs in the 2.5 D NA engine I was not specific enough. I ordered what they state is a core plug with their order number repeated on the invoice but the part is a cup plug. Sorry for the rant but I spoke twice with the parts section I am wondering if they know what the heck I am talking about worrying for Landrover specialist well p*&^ed off