bike.wikisort.org - Engine

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.

This article does not cite any sources. (September 2015)

1980 HD XLR Sportster with Ironhead Engine

Manufacturer	Harley-Davidson
Also called	XL
Production	1957 to 1985
Predecessor	Harley-Davidson KHK

This name was applied to the Harley-Davidson Sportster motorcycles that used this engine.

See also

• Harley-Davidson engine timeline

External links

• Images of each style of Harley-Davidson engine

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