The Evolution V-twin Engine, also known as the Evo Engine, is an air-cooled V-twin engine introduced by Harley-Davidson in 1984. This engine is the most ‘innovative’ Harley-Davidson engine, introducing new displacement options of 883cc and 1100cc, breaking through the displacement limits of the legendary Shovelhead and Ironhead engines.
What is the difference between OHV, OHC, SOHC and DOHC engines?
Posted on July 17 2025
The term OHV (Over Head Valve) refers to an engine configuration in which the camshaft is located inside the cylinder block and the valves are actuated by pushrods, while OHC (Over Head Cam) denotes a design in which the camshaft is located inside the cylinder head and the valves are actuated directly. Cam) and DOHC (Double Overhead Cam).
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