Buying an Engine Block On the Web Carefully


Performance engines are extremely demanding on internal engine parts. When high performance engines break, the harm may be so serious that it damages the engine block beyond a cost effective repair. Most automotive enthusiasts naturally search for a low cost replacement engine block if this occurs. Web based auctions may be the first place to look for some of these folks, however purchasing a used engine block online has its risks.

As everyone knows, buying any used item bears its risks. But with cylinder blocks, many possible issues may remain disguised even with the most thorough photographs. Automotive enthusiasts who are buying an engine block online may take some general precautions to reduce their risk and improve their potential in finding a good engine block.

The very first thing a block buyer should consider is how the block was stored. Those in the engine rebuilding sector fully understand that engine blocks ordinarily aren’t stored in the home. The majority of blocks usually are stored outdoors and are exposed to the weather. Particularly in cold locations, water can enter the water jackets and elevates the possibility of damage. Even though this leads to rust, that’s normally the least of ones worries. Water that is frozen can expand and force the cylinder walls to crack and perhaps the outer portion of the block. Such harm could be extremely expensive to fix and usually is not worth the price.

Individuals selling used cylinder blocks on the internet typically will declare that the block has been accurately examined or came out of a running car or truck. It’s important to remember that an engine block can not be adequately inspected unless it has already been first thoroughly cleaned. Performance vehicle owners considering the purchase of a block should first determine if it was cleaned. If the block is still greasy, or has a large amount of corrosion, there is absolutely no way it could have been correctly inspected.

The person buying an engine block should also take under consideration the existing cylinder specifications, block deck height and crankshaft main bore alignment. Cylinder blocks that have been machined may offer no material to machine to an available oversize. This is particularly true with pistons. Furthermore, extreme corrosion in the cylinder bores is usually difficult to machine out for the piston rings to properly seal.

As with every engine block purchase online, buyers must always make an attempt to have the seller commit to a return agreement pending examination. Any certified automotive machine shop can inspect the cylinder block for the buyer for a minimal price. Should any defects be discovered, having a return agreement in place is important to protecting ones investment.

As an ASE Certified automotive machinist, this writer has seen quite a few engine block flaws when they were purchased online. He provides assistance to potential buyers so they can decide on a good core for their next engine rebuild.