When the daredevil Evel Knievel jumped motorcycles in the early 1970s, he was usually powered up the ramp by an Ironhead engine. This engine was made by Harley-Davidson from 1957 until 1985 and it was used primarily in the Harley-Davidson Sportster. It is a V-twin with overhead valves that is big, loud, and brash. This is an engine that wants to be seen, to be heard, and to be driven. The unmistakable V-shape looks like it is almost going to spill outside of the frame. And when you twist the throttle, it delivers a powerful shake that makes you know you are on a cruiser. It was made in several configurations including 883 cc, 1000 cc, and 750 cc. They are known as the X-series Sportster engine and replaced the flat-head Model K-series engine. In 1985,Harley-Davidson replaced the Ironhead engine in its Sportster motorcycles with the Evolution engine, but for many bikers, the Ironhead is the very essence of cruiser motorcycles. Within the vast inventory available on eBay, you can get reconditioned engines, projects that you can work on yourself, or parts.
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