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

[James Brown <jimmb1960@xxxxxxxxx>]

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. 
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> Kenyon Wills
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