834-2758A3 Cylinder Block - NEW NOS  Merc 650 4cyl  No crank case bolts.  #1 cylinder has minor storage rust at top dead center, a ball hone will clean it up.  #3 cylinder also ha minor storage rust at top dead center, #2 & #4 cylinders look clean.  I have described this block as best as possible.  If the description is unacceptable to you please do not purchase it.