---

As EJO recommended, take the block to an engine rebuilder to determine if it is repairable. Some cracks can be welded others require more effort. I believe the most common repair for a cracked cylinder wall is to bore out the cylinder enough to allow a new cylinder to be installed. This is often referred to as "sleeving the cylinder" The sleeve is sized to accept the original piston.

When going to the trouble to do all the work involved it is common to overhaul the engine during it's reassembly. It may be a good idea to chemically clean the block while it is apart. Over time the cooling water passages often become partially blocked with chemical deposits. Removing the deposits will improve engine cooling in the future. The cleaning can be accomplished by a rebuilder while repairing the block.

A remanufactured block as suggested by Finnegan may be a more economical and reliable alternative.