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526 cast iron cylinder block interchangeability
#1
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2dayistheday
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1928 was the last year for the 6 cylinder. Are any earlier cast iron 6 cylinder blocks interchangeable with the '28? Or is the '28 unique?

Posted on: 2021/7/11 20:41
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Re: 526 cast iron cylinder block interchangeability
#2
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Peter Packard
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I have a 533 and I understand that the 4th Series block is identical.

Posted on: 2021/7/12 5:35
I like people, Packards and old motorbikes
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Re: 526 cast iron cylinder block interchangeability
#3
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1929PackardGuy
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The 4 and 5 series cars, from 1926 through 1928 both use the 288" six. From 1923 to 1925, the earlier cars used a 268" six cylinder block.

Posted on: 2021/7/12 11:16
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Re: 526 cast iron cylinder block interchangeability
#4
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2dayistheday
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So the thought is that the blocks are interchangeable? I was concerned that "improvements" may have been introduced that may prevent using an earlier one.


Thanks for the inputs & feed back!!

Posted on: 2021/7/12 19:06
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Re: 526 cast iron cylinder block interchangeability
#5
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1929PackardGuy
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I've never had one, but if it's anything like the 319" eights that came out in '29, yes, a lot of the components should interchange with parts from the earlier engines. Since they have the same cubic inch displacement, I would think the bore and stroke, pistons and crank are all the same.

Posted on: 2021/7/13 16:04
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