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The ''' | [[Image:Ironhead_Engine_with_Hitmans_XL_Shed_on_Rockers.gif|200px|thumb|right |Iron Head engine]] | ||
The '''Ironhead''' was a [[Harley-Davidson]] [[motorcycle]] [[engine]], so named because of the composition of the [[rocker boxes]]. The engine is a two cylinder, two valves per cylinder, [[Pushrod engine|pushrod]] [[V-twin]]. It was produced from 1957 until 1985 and was replaced by the [[Evolution engine]] 1986. | |||
This name may also be applied to the [[Harley-Davidson_Sportster]] motorcycles that used this engine. | This name may also be applied to the [[Harley-Davidson_Sportster]] motorcycles that used this engine. |
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