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Harley-Davidson Shovelhead engine

Harley-Davidson Shovelhead engine at the Harley-Davidson Museum

The Shovelhead engine is a motorcycle engine that was produced by Harley-Davidson from 1966 to 1984, built as a successor to the previous Panhead engine. When the engine was first produced, the Shovelhead had a shallower combustion chamber, larger valve drop for both intake and exhaust, better porting, and stronger valves and pistons. This gave the new engine an extra 10 horsepower, along with a different appearance.[1] The engine gained the nickname “Shovelhead” because its rocker covers look a little bit like an upside-down coal shovel.[2] While the engine did have problems, it gave Harley-Davidson a 26% sales increase during the early part of its timeline.[3]

  1. ^ Salvadori, Clement (2008-11-25). "Retrospective: Harley-Davidson Shovelhead: 1966-1984". Rider Magazine. Retrieved 2017-04-10.
  2. ^ Harrell, Christine. "History of the Shovelhead Engine". www.streetdirectory.com. Retrieved 2017-04-16.
  3. ^ Cameron, Kevin (2016-08-20). "Harley-Davidson Shovelhead V-Twin Motorcycles - HISTORY OF THE BIG TWIN". Cycle World. Retrieved 2017-04-10.

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