Help with decode?

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Aug 31, 2017 | 09:20 AM

CAMS69

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Help with decode?

I have a 69 , 350 with th 400.. im confused on the serial number? i found on the passengers side rear. Can anyone tell me what it means? Thanks!! looks like 151169997

Aug 31, 2017 | 11:36 AM

corvgreg

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Quote:

Originally Posted by CAMS69

I have a 69 , 350 with th 400.. im confused on the serial number? i found on the passengers side rear. Can anyone tell me what it means? Thanks!! looks like 151169997

I haven't seen a stamp like that, factory stamp would not be that large for serial number and would have different characters in it. Warranty engine would have CE in beginning. The 010 block was used late 69, check for casting date which is on the other side of the back of the engine.

Aug 31, 2017 | 12:05 PM

MelWff

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why are you looking at the back of the engine as opposed to the engine stamp pad found on the front of the engine, passenger side, below the cylinder head?

Aug 31, 2017 | 12:13 PM

Alan 71

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From: Westminster Maryland

Hi Mel,
I believe C69 wanted to show the block casting number.
The second photo…. isn't that the stamp pad?
Aren't we seeing the front surface of an unpainted head and just a bit of the water pump and pump to carb fuel line?
Regards,
Alan

Last edited by Alan 71; Aug 31, 2017 at 12:16 PM.

Aug 31, 2017 | 12:18 PM

Alan 71

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From: Westminster Maryland

Hi C69,
Is there an engine assembly stamp on the other end of the pad?
Can you remove the paint on the pad?
Regards,
Alan

Last edited by Alan 71; Aug 31, 2017 at 12:24 PM.

Aug 31, 2017 | 12:19 PM

MelWff

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Hi Alan:
if the second photo is the front stamp pad, why the long number without any engine code? Thanks.
Mel

Aug 31, 2017 | 12:23 PM

Alan 71

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From: Westminster Maryland

Hi Mel,
I think that's exactly why C69 is asking.
Regards,
Alan

Last edited by Alan 71; Aug 31, 2017 at 12:24 PM.

Aug 31, 2017 | 12:32 PM

CAMS69

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Thanks it's a mystery...

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Aug 31, 2017 | 01:03 PM

Easy Mike

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K indicates the St. Catherines, Ontario engine plant. CM is a 60-61 283 code so I'm wondering whether the engine suffix is missing a character.

Aug 31, 2017 | 02:38 PM

#10

CAMS69

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Quote:

Originally Posted by Easy Mike

K indicates the St. Catherines, Ontario engine plant. CM is a 60-61 283 code so I'm wondering whether the engine suffix is missing a character.

Is this a mystery?

Aug 31, 2017 | 02:41 PM

#11

Alan 71

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From: Westminster Maryland

Hi C,
I don't know if it's a mystery or just stamps that folks aren't familiar with.
???
Regards,
Alan

Aug 31, 2017 | 03:29 PM

#12

MelWff

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there appears to bes a third letter to the right of the CM which does not show completely in the picture

Aug 31, 2017 | 03:35 PM

#13

Easy Mike

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Quote:

Originally Posted by CAMS69

Is this a mystery?

Not really. GM has a big complex at St. Catherines. The CM is the odd ball since a 283 code shouldn't be on an 010 block.

Aug 31, 2017 | 06:01 PM

#14

CAMS69

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Yes!

Quote:

Originally Posted by MelWff

there appears to bes a third letter to the right of the CM which does not show completely in the picture

It's a " J"

Aug 31, 2017 | 11:24 PM

#15

corvgreg

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cmj is 1974 350 code.

Sep 1, 2017 | 06:33 AM

#16

Easy Mike

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Quote:

Originally Posted by CAMS69

It's a " J"

Quote:

Originally Posted by corvgreg

cmj is 1974 350 code.

That works for an 010 block.

Last edited by Easy Mike; Sep 1, 2017 at 06:34 AM.

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