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Can anyone help identify block

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Old May 16, 2007 | 10:11 AM
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Default Can anyone help identify block

I have an engine block that I can not identify. Front pad is stamped
V0106TNE no vehicle vin number. I'm at a lose for the TNE.
additional the Block casting is a 3970010. The block Casting Date right rear of block is M12. I also don't understand the M, I was sure casting dates ran A to L. I assume it is a December casting 1972 350 block. I would like to knon what it is out of. I can't fine TNE in CHEVY, buick, pontiac. I know from time to time buick and pontiac used Chevy engines. Any help out there. I been a reading member for some time but this is my first post.
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Old May 16, 2007 | 12:00 PM
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Can't help. All the T codes in my Chevrolet V-8 Pocket Guide are truck blocks. TNE is not listed.

The 010 block is a 350.

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Old May 16, 2007 | 12:40 PM
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They didn't use the letter "I", so that's where your month went. That same casting number block was used on a lot of different 302's, 327's and 350's
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Old May 16, 2007 | 01:22 PM
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Off hand I would say it is a truck motor from the 70's because of the "T" in the beginning of the 3-digit suffix. "C" is used there on cars.

I also suspect it may be from a medium duty chassis due to the lack of a VIN stamp. The rules for bigger vehicles seem to be different when it comes to VIN stamping. I have seen this before.

It was cast late in the year and assembled in early January.

Hope this helps,

-Mark.
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Old May 16, 2007 | 01:57 PM
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Originally Posted by 327carguy
Front pad is stamped
V0106TNE I'm at a lose for the TNE. additional the Block casting is a 3970010. The block Casting Date right rear of block is M12. I also don't understand the M, I was sure casting dates ran A to L. I assume it is a December casting 1972 350 block. Any help out there. I been a reading member for some time but this is my first post.
Can't find TNE, but there is a TME ...
TME 1970 350 Truck 215hp Base 2-Brl C 50

SBC Casting dates do run A-L, and I is September ...

M12 is not a date. It is a 'specials' number indicating the block was used for a GM Engineering process test. If engineering was happy with the results, the block was released to the factory. If they were not happy, it was trashed. Obviously, they were happy with whatever they were testing ...

M12 is also a very low "specials' number, so with a 3970010 block, the January 6, 1970 build date makes sense ... which would also tie in with this TME suffix.

For more on the 'M' code, check out the NCRS archives.
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Old May 16, 2007 | 09:41 PM
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Default Can anyone help identify a block

Thanks Frank.
That is very interesting about the "M" Codes. I double checked the block an it is TNE. At best I thought it was an over the counter replacement block because it lacked the VIN number. I wonder how it got into my 63 vette. thanks again
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Old May 17, 2007 | 01:34 AM
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Originally Posted by 327carguy
Thanks Frank.
That is very interesting about the "M" Codes. I double checked the block an it is TNE. At best I thought it was an over the counter replacement block because it lacked the VIN number. I wonder how it got into my 63 vette. thanks again
Junk yard, swap meet, buddy with a wrecked truck, etc. Back when these were just cars, breaking an engine was best handled with what you had available or could get cheap. There was very little of the buying a crate engine at the dealer like today.

If you made $150 a week, and a used motor would run $100 and a crate motor would run $500, which way do you think you'd go?

30 years ago, the main reason to own a Corvette was to drive it. And you could do that with anything stuffed in the front. I've seen 283s, 307s, 302s, and so on in mid years.

I think we have run into that TNE suffix not too long ago on here. It would be nice if someone figured out what it was.
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Old May 22, 2007 | 01:19 AM
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Default a little more information

I really looked the pad stamping over again today and I noticed the is a difference in the zeros used in the stamp. I was sure it was V0106TNE However the two zeros are completely different. The first zero is very round or oval. the second zero is almost a tall rectangle with small radiused corners. If only the two right corners had the radius I would say it was a D. If the 1 is an I could it be VOID6TNE.

Once again any more help out there?

I did find out the M12 is not a Casting date code but any engineering test code. Does anyone know how to find out what this test code stands for
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Old May 22, 2007 | 10:14 AM
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Originally Posted by 327carguy
I really looked the pad stamping over again today and I noticed the is a difference in the zeros used in the stamp. I was sure it was V0106TNE However the two zeros are completely different. The first zero is very round or oval. the second zero is almost a tall rectangle with small radiused corners. If only the two right corners had the radius I would say it was a D. If the 1 is an I could it be VOID6TNE.
Once again any more help out there?
I did find out the M12 is not a Casting date code but any engineering test code. Does anyone know how to find out what this test code stands for
The 4 digits after the V (Flint) always indicate a date ...
When the factory stamped the date, you'll find they interchanged the 1(one) with I(eye) and 0(zero) with O(capital Oh!) on occasion, even within the same stamping. So your V0106TNE is still January (01) Sixth (06) no matter if an O or 0 is used ....

As for the 'M' test codes, those are not available.
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