Shovelhead
Shovelhead may refer to: *Harley-Davidson Shovelhead engine, an engine produced by Harley-Davidson from 1966 to 1984 *Bonnethead The bonnethead (''Sphyrna tiburo''), also called a bonnet shark or shovelhead, is a small member of the hammerhead shark genus ''Sphyrna'', and part of the family Sphyrnidae. It is an abundant species in the littoral zone of the North Atlantic ...

Harley-Davidson Shovelhead Engine
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. The engine gained the nickname “Shovelhead” due to the look of the rocker covers having the appearance of an old coal shovel that was flipped upside down, giving the appearance of a shovel. While the engine did have problems earlier in its timeline, the new and improved motor gave Harley-Davidson a 26% sales increase. History The Shovelhead engine was created as the previous Panhead engine was becoming obsolete, with many Harley-Davidson owners demanding more power to compete with the more modern motorcycles. Throughout the Shovelhead's run, the engine had many d ...
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