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The engine is a two-cylinder, two-valve-per-cylinder, pushrod V-twin, made in both 61 c.i. (EL) and 74 c.i. (FL, FLH) displacements. The Panhead engine replaced the Knucklehead engine in 1948 and was manufactured until 1965 when it was replaced by the Shovelhead.
S&S attracted controversy in 2005 when Harley-Davidson filed a patent and trademark infringement lawsuit against the company along with fellow aftermarket engine manufacturer Delkron, Inc. Harley accused S&S and Delkron of copying parts for Twin Cam engines and using Harley trademarks without permission. S&S argued that the suit was without any ...
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.
It is also the most extensively aftermarket supported Harley-Davidson design, to date, with clones of the engine being produced by third parties like S&S Cycle and several others. Following the end of the life of the Big Twin's successor, the Twin Cam, Harley reverted to a single cam design with the Milwaukee-Eight engine, first introduced for ...
An undisclosed number of samples of engines failed, until an engine successfully passed the 500-hour nonstop run. This was the benchmark for the engineers to approve the start of production for the Revolution engine, which was documented in the Discovery channel special Harley-Davidson: Birth of the V-Rod , October 14, 2001.
Engines must be available in regular-production vehicles on sale in the U.S. market no later than the first quarter of the year. Eligibility has also been based on availability in a vehicle below a base price limit, which increased progressively from US$50,000 for the 1995 list up to US$65,000 for the 2020 list; this limit was eliminated for ...
A Honda Super Cub engine. The most popular motorcycle in history, with over 100 million produced. A motorcycle engine is an engine that powers a motorcycle.Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.
For the U.S. market, Kymco offers 10 scooters, eight side by sides, 14 ATVs and two small displacement motorcycles in its line of products. Kymco was the official Scooter and ATV for the NHRA [ 7 ] and with Gray Motorsports primary sponsor of the 2014 NHRA Mello Yello Drag Racing Series .