Harley-Davidson Ironhead engine
(Redirected from Ironhead engine)
 | This article needs more citations. (April 2026) |
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| Manufacturer | Harley-Davidson |
|---|---|
| Also called | XL |
| Production | 1957 to 1985 |
| Predecessor | Harley-Davidson KHK |
The ironhead was a Harley-Davidson motorcycle engine, so named because of the composition of the cylinder heads (Iron instead of Aluminium).[1] The engine is a two-cylinder, two valves per cylinder, pushrod V-twin. It was produced from 1957 until 1985 [2] and was replaced by the Evolution engine in 1986.[3]
This name was applied to the Harley-Davidson Sportster motorcycles that used this engine.
See also
[edit]References
[edit]- ↑ Owen, Justin (18 September 2024). "Every Harley-Davidson Engine Ever Built". SlashGear. Retrieved 11 April 2026.
- ↑ "Ironhead Archive". Thunderbike. Retrieved 11 April 2026.
- ↑ Patrascu, Daniel (2 September 2023). "Harley-Davidson Engines: Full Timeline and History (1903-2024)". autoevolution. Retrieved 11 April 2026.