Automotive engine technology has come a long way since Carl Benz put a one-cylinder 2/3 horsepower engine on the Patent Motorwagen in the late 19th century. Modern engines are cleaner-burning, highly ...
Among the advantages of these engines are factory aluminum heads, lightweight composite intakes and in some cases aluminum blocks. Many, such as the 5.3L (RPO LM7) have a cast-iron block with aluminum ...