Nailhead bellhousing, made by Trans Dapt to allow a later type 4 speed / 3 speed to be used such as Saginaw Muncie Borg Warner T10. Fits a 53 to 56 264 or 322, not for later engines. Looks pretty good, one mounting hole for trans is oversized so it will need repair. Part is located just outside Boston Ma and I can ship anywhere in the lower 48. Will sell for $350 shipped. Please contact by DM. Email is best sfaboston (at) hotmail (dot) com