Engines endure much abuse. Sometimes this torture results in damage to either the block or the heads--or both. The block can be very rare, such as a matching-number block for an LS6 Chevelle or the ...

There are plenty of instances where perfectly good—and often rare—cast iron cylinder head and engine block castings are scrapped due to the presence of a hairline crack in an external surface. Often ...

Your car's internal combustion engine relies on a huge number of large, small, and oddly-shaped parts. One of the biggest and most important parts of your motor is the engine block or cylinder block, ...

If your vehicle's head gasket is leaking, it may be tempting to buy a head gasket sealer. Before you do, it's important to know how it works.