Re: IML: Trivia Question - super prize for first correct answer
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Re: IML: Trivia Question - super prize for first correct answer



According to "Petersen's Complete Book of Plymouth, Dodge, Chrysler":
Chrysler engineers began looking at the "ideal" hemispherical-type combustion chamber for a production passenger car engine as far back as 1948. They noted that most high-efficiency  engines used it and practically all the world's top racing engines. And they could see several important advantages in bread-and-buter passenger car use: room for larger valves; streamlined ports and less shrouding around the valve edges, short flame travel in the combustion chamber; less heat rejection because of less chamber surface area in relation to volume and less carbon build up;
 
 
There were several design problems in bringing these advantages to a practical production engine -  large head castings, double rocker arm shafts, steep pushrod angles, extra engine width, etc. - but it was finally decided to tool up for an advanced hemi-type engine for Chrysler's premium 1951 models, to compete with the  new short-stroke, ohv Cadillac introduced in '49."
 
That 1st Chrysler Firepower engine had 331 cu. ins. and was rated 180 hp at 4000 rpm with a 2 bbl carb. and 7.5:1 compression ratio. THIS WAS 20 HP MORE THAN THE EQUIVALENT CADILLAC MODEL."
 
Sorry I yelled at the end.
 
Jim Brown
'60 Crown S.H. (Alaskan White)
 
Although I was very young, I remember my father and brother owning these:
 
'54 New Yorker Deluxe
'55 DeSoto Firedome
'57 300-C Convert.
'59 DeSoto Adventurer
Kenyon Wills <imperialist1960@xxxxxxxxx> wrote:
>> When/how did the Chrysler Hemi engine debut? <<

First person to explicitly, correctly name the
circumstance/application/chrysler vehicle that first
used that famous cylinder head design here on the IML
(no secret submissions allowed!) will get a 1964-66
Imperial gas cap eagle. That's right, the big one the
size of a teacup saucer.

You can mount it with pride on your toolbox,
dishwasher, dog's collar, wife's handbag or whatever.




Kenyon Wills
























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