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THE HEMI mitch - THE HEMI History of the Hemi Engine . In...

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THE HEMI
History of the Hemi EngineIn 1951, Chrysler introduced their new line of V8 motors, popularly known as the "HEMI", because the combustion chamber was fully machined into the shape of a 1/2 dome or hemi-sphere; This was the first use of the HEMI Engine in an American passenger car engine
About the Hemi EngineThe intake and exhaust valves were located on opposite sides of the combustion chamber at 90 degrees to the cylinder bore axis, so separate individual rocker shaft assemblies (two on each head) were necessary to operate and control all sixteen Intake and Exhaust valves. It also centralized the spark plug location, making the flame travel shorter. This design gave the Hemi, terrific breathing capability. It also gave the combustion chamber, greater thermal efficiency. These engines run cooler because of having a greater surface for heat transfer along with large cooling passages. This 

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Daimler Motor Company, Chrysler Hemi engine, 90 degrees, Hemi engine

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