As the U.S. economy has been opened to foreign imports, domestic manufacturing has been reduced dramatically. In fact, the majority of ordinary people to buy products that are no longer manufactured in the region. The same is true in the automotive component industry.

High performance engines typically require specific components that are not available from automotive dealers. Many parts are made of forged steel, which is cast in foundries overseas. This poses unique challenges to modern day automotive machine shop as the parts they need to build high performance engines often can take weeks or months to receive.

Although consumers are realizing savings of imported automotive components, unintended consequences stretching well beyond saving. Besides the issue of availability of spare parts, which are quite common these days, there are also quality issues. Many automotive parts imports just do not meet the required standards when building a high performance engine. In fact, there are many occasions when the parts are imported from the specification is only so much that they can not be used at all.

What is becoming more common is that some automotive parts such as crankshafts, being thrown out of the country and finished here in the United States. While foreign-made malleable castings are structurally sound, many machine shops have determined that it is best if they handle the operation is complete itself. This provides an opportunity for domestic machine builders have full control over the finished machine components.

In many cases a high performance engine requires special tolerance considerations. For example, align the delivery of a high performance engine block may require a crankshaft which has the dimensions of the individual completing the main journals. By grinding the main journals of different sizes to complete, maintain proper tolerances for each of the main cover. Tolerance is also considering the circumference of the housing hole and destroy the main bearing caps.

Many automotive manufacturers cite the cost and lack of government regulation as the main reason why they produce machine parts overseas. However, it also impacts businesses with the loss of efficiency. Without being able to serve their customers, because the engine parts are out of stock, the same companies risk losing sales to competitors. Lost sales are quite common, especially in industrial high-performance engine rebuilding, because many of their customers require machines to racing. If they have no engines, they can not race.

Although there are cost benefits of overseas manufacturing engine components, short-term customer savings are often offset by the headaches on the availability, quality and supply complete line of poor management. Much of the burden resulting from getting a more affordable part incurred by the automotive machine shop and engine builders throughout the nation. While the parts themselves may be less expensive than domestically produced parts, the extra time involved with the supply line difficulties now being passed on to customers.

When all things considered, the benefits of offshore production of engine parts is negated to some degree with the complexity of the supply line. Especially in industrial high-performance engine again, this is of particular concern where the engine is modified to produce maximum horsepower possible.