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Old 02-06-2011, 11:36 PM
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GTyankee GTyankee is offline
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practically the new ones are not true Hemispherical engines, but, technically they are

In a hemi engine, the top of the combustion chamber is hemispherical. An engine like this is said to have "hemispherical heads." The spark plug is normally located at the top of the combustion chamber in a hemi, and the valves usually open on opposite sides of the combustion chamber

did you know that Ford made a HEMI ?? it was called the Ford SHOTGUN engine, Ford stopped making them, because NasCar's president said that only small blocks were going to be used on the tracks

The BOSS 429 story is closely interwoven with NASCAR racing. In the middle to late 1960's Chrysler was dominating NASCAR racing with their radical new 426ci hemi powered racers. Ford needed a new weapon in this battle, and decided to take it to Chrysler by building a big block hemi engine of its own. Thus the Boss 429 motor was developed, and it was designed and built from the bottom up as an all out racing engine. However to use the engine on the NASCAR track, Ford had to first homologate a minimum number of engines into regular production cars, and the Boss Mustang was chosen for this. The new hemi motor was christened the Blue Crescent, but as the intake and exhaust ports in the huge alloy heads were so large, it was nick-named the "Shotgun".



You can buy a SHOTGUN HEMI brand new right now, from John Kaase, Cu. in. 429, 460, 520 & bigger

http://www.jonkaaseracingengines.com...ford-hemi.html
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Last edited by GTyankee; 02-06-2011 at 11:41 PM.
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