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Plymouth 301
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Kenny J.
Posted 2008-03-21 11:02 AM (#121482)
Subject: Plymouth 301



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I was looking over the Plymouth 301 engine which graces our back patio.

I was trying to find the rationale for this one year only displacement of the A engine.

I was wondering if it was a case of logistics......................Chrysler Corporation had leftover 277 cranks and simply used up inventory by installing 277 cranks into 318 blocks.

Does anybody know why Plymouth just didn't make the jump from 277 to 318 in 1957?

K.
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dukeboy
Posted 2008-03-21 12:07 PM (#121491 - in reply to #121482)
Subject: RE: Plymouth 301



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By that logic, why would Chevy build a 327 Chevy by installing a 283 crank in a 350 block?
(327 same bore as 350)....

Why would chevy build a 302 C.I. Small block?
Why would Chevy build a 427 using 396 Crank in 454 block?

I think they just needed some hot rodder to tell 'em that "Hey! we can get about 318 C.I. out of this thing, IF we retool the crank for more stroke"........

My only wish would be that Chrysler had realized that they needed a 440 back in 1962, and by the late 60's, we'd have had a 500 C.I. engine....
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Kenny J.
Posted 2008-03-21 9:59 PM (#121593 - in reply to #121491)
Subject: RE: Plymouth 301



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I guess I was wrong. There is such a thing as a stupid question.

K.
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dukeboy
Posted 2008-03-22 1:35 AM (#121616 - in reply to #121593)
Subject: RE: Plymouth 301



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Nah, I often wondered the same thing Kenny....Some feel that the reason was that They (Chrysler) needed a "Base" engine and they did use up all the 277 cranks for this "Base" engine...The 318 was availible in '57 in the Fury I think...
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MOPAR-TO-YA
Posted 2008-03-21 5:29 PM (#121554 - in reply to #121482)
Subject: Re: Plymouth 301


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Don't know what year a mopar 301 is , but I can tell you that Chebby came out with the 302 cu in. Z 28 engine ( I think a 283 crank in a 327 engine) to comply with a cu inch restiction in some racing rules. . Seems like that was also the reason behind the Mopar 340....................................MO
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Mopar1
Posted 2008-03-21 5:48 PM (#121558 - in reply to #121554)
Subject: Re: Plymouth 301



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MOPAR-TO-YA - 2008-03-21 4:29 PM

Don't know what year a mopar 301 is , but I can tell you that Chebby came out with the 302 cu in. Z 28 engine ( I think a 283 crank in a 327 engine) to comply with a cu inch restiction in some racing rules. . Seems like that was also the reason behind the Mopar 340....................................MO
301 is '57. The Brand X 302 was a result of Trans Am racing engine size.
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57belvedere
Posted 2008-03-22 6:14 AM (#121635 - in reply to #121482)
Subject: RE: Plymouth 301



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The Plymouth 301 replaced the 277 in 1957. It was a 299.6 in³ (4.9 L) engine with a larger 3.91” (99 mm) bore. Note that these dimensions are entirely different from the 1955 Chrysler 301.

Also heard rumors that they couldnt call the engine 300 cause it shouldnt get compared to the chrysler 300.



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Kenny J.
Posted 2008-03-22 9:53 AM (#121645 - in reply to #121635)
Subject: RE: Plymouth 301



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Was the 301 a mid-year 277 replacement? Or was 277 and 301 production concurrent for a while?

K.
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57belvedere
Posted 2008-03-22 4:06 PM (#121691 - in reply to #121482)
Subject: Re: Plymouth 301



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According to this allpar site the 301 replaced the 277 completly for the 1957 models.
Take a look.

http://www.allpar.com/mopar/a-engines.html


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chrycoman2
Posted 2008-03-25 6:16 PM (#122277 - in reply to #121691)
Subject: Re: Plymouth 301


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The 277 engine was the base V8 engine for the 1957 Plymouth Plaza and Savoy. The 301 was the base engine for the Belvedere and optional on the Plaza and Savoy. It was not uncommon in those days to have the cheaper series use a smaller engine.

Similarly, increases in engine sizes were done gradually from year to year.

Although the chart on the right side of the Allpar web site shows the 301 as a 1956 only engine, the second chart, placed in the centre of the discussion, show the 301 as available for 1957. The 318 was a Fury-only engine in 1957, just as the 303 was in 1956. Just added a little extra for the money.

Bill
Vancouver, BC
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