1972 Ironhead Sportster Custom Vintage Paint King Tank Fresh Engine
The Harley-Davidson Ironhead is a retronym referring to an engine layout produced by the U.S. firm between 1957 and 1985. This powerplant succeeded the KHK engine, had a top speed of 110—143 mph (177—230 km/h), and was the 1st OHV mill produced by HD for its Sportster line.
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Way back in 1957, the very first Harley-Davidson Sportsters to roll out of the factory were powered by the now-iconic Ironhead engine, a two-valve push-rod V-twin with cast-iron heads and cylinders. The engine displaced 883cc and made around 40 horsepower in stock trim — enough to give the 750cc British bikes a run for their money.
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The ironhead and shovelhead engines are no exception. Harley Davidson brought these two engines during the 1950s to improve their motorcycle performance. These two engines share many similarities. Thus, people are keen to compare ironhead vs. shovelhead engines for Harley motorcycles. The ironhead engine first came into the scene in 1957.
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Top Five Harley-Davidson Sportsters, Part One: Ironheads POSTED 07/28/2021 By Wesley Reyneke Harley-Davidson has just rebooted one of the world's longest-running model lines, with the launch of the new Sportster S. But remarkably, it's only the third major engine update in the Sportster's 60-plus years on this earth.
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The Harley-Davidson Ironhead engine is officially known as the Sportster Ironhead as it was predominantly used in the said motorcycle label. While it underwent several improvements during its lifespan (from 1957—1985), it was fitted solely into Sportster models and some XR-series iterations — all of which belong to the firm's cruiser segment.
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Ironhead 72-85. The XLCH was a sportier version of the XL883 Sportster introduced in 1959 two years after the original. "CH" supposedly standing for "Competition Hot." These were stripped-down models oriented toward on- and off-road work with magneto ignition, high exhaust pipes, solo seat, smaller "peanut" tank, and lighter overall weight.
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What are Iron heads? The first launch of Harley Davidson for racing motorcycle engines was Ironheads. They were produced in 1957. Ironheads, as the name explains, is an engines made purely of iron, instead of aluminum. It is made of two cylinders, with two valves per cylinder and a V-twin pushrod.
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The Harley-Davidson ironhead's maximum speed can be reached at 185.0 km/h (115.0 mph) with its power train. A chassis characteristic affects the handling and comfort of the car, as well as how it holds on the road. In the early 80-inch/FLH Shovelhead, the engine could produce 66 horsepower at 5,600 rpm.
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The Ironhead vs Shovelhead is two Harley-Davidson engines. The Ironhead motor was produced from 1957 to 1985, while the Shovelhead motor was introduced in 1966 and continued until 1984. Both motors were designed with a 45-degree V-twin, four-stroke engine configuration.
HarleyDavidson Ironhead Chopper
The Ironhead engine was produced between 1957 and 1985, and was Harley-Davidson's first attempt to move away from the iconic Knucklehead and Panhead engines. The Ironhead is a two-cylinder, four-stroke engine that features overhead valves and an iron cylinder head.
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The Harley-Davidson Ironhead motor is the main reason for the enduring success of the Sportster. Considered by many Sportster purists as the last real Harley engine, the Ironhead is the throbbing powerhouse that lends heart and soul to a long line of Sportsters produced from 1957 to 1985.
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The ironhead was a Harley-Davidson motorcycle engine, so named because of the composition of the cylinder heads (Iron instead of Aluminium). The engine is a two-cylinder, two valves per cylinder, pushrod V-twin. It was produced from 1957 until 1985 and was replaced by the Evolution engine in 1986.
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More at choppertown.com - Sweet sounding Harley-Davidson Ironhead in Europe sent in by fan. Discover more and keep up to date with the exciting events at Ch.
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The Ironhead version of Harley's Sportster has been around since 1957 and managed to survive until 1985, and, of course, the Evo version continues on today. All versions of the Sportster can trace their roots back to the VLs of the 30s. In fact, the V begot the W, which begot the K, which begot the XL. And, of course, there are the racing sub.
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When the first Sportsters rolled out of the Harley-Davidson factory in 1957, they were powered by the iconic 'ironhead' motor—which would remain in production until 1985. The Sportster is still in production 60 years later, and the ironhead has the longest production history of any Sportster engine.