bare block. Degreased but could use a hot bath before machining .I pressure checked here at my shop & it is ok. A visual inspection of main web & no cracks seen. If you want to have them Maged I can work a guarantee. Cylinders have normal amount of ring wear with some very slight staining .Rear main seal retainer included I may be able to take these parts to Columbus Ohio Ford swap  April 2, 3 2016  if there is enough interest in them.          $275.00 price is firm so you know before you come unless several parts are bought. Any questions or concerns call  Harry     five,one 3 eight 6 eight 33 one one                        Leave message if no answer                     from 57 or 58 Mercury   S/W  Ohio

Sir,

    Do you still have the 312 block?

Ray
850/682-8327