Alvis Speed 25 Cylinder Head. Has recently been on a car without issue. The head has been pressure tested OK. There are no valves etc, and the guides will need K lining or replacing.Extremely rare, even if your head is OK, its a valuable spare to have on the shelf.
One 6 cylinder Chevrolet head (216 CI) in good condition, incl. valves & valve springs. (GM 938401). Apologies for the grease marks on the camera lens.