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  #21  
Old 02-06-2008, 06:04 PM
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OK then engineer. What does O76 mean? And, what aftermarket books?

  #22  
Old 01-27-2025, 03:36 AM
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Quote:
Originally Posted by pillman View Post
Hi, where did you find your build sheet? Do you know the production date of your car? My 70 Judge came off the Oshawa line in early December 1969.
Mine was built Dec 15 1969.

  #23  
Old 01-27-2025, 07:38 AM
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WOW!
Forgot about this thread.




It would have been great if the OP posted his buildsheet.
HFR, did he ever send you a copy?

The 'O76' is probably incorrect. Never an 'O' coded option I believe.
Probably an 'U' like U76 which was the windshield antenna option.

the70OOJudge, you're Judge is a great car.


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  #24  
Old 05-12-2026, 02:44 PM
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HA! Wow — I totally forgot I posted in here looking for code help. Everyone was incredibly helpful… 25 years ago.

Happy to report I still have the GTO, and it’s in relatively the exact same shape. The original motor was rebuilt after a bearing let go, and I added a cam and Ram Air manifolds, but otherwise kept everything pretty much stock. It still has the original engine, transmission, carb, rear end, etc.

What a great community this is. If some of you are still around, I’ll upload the build sheets. In the meantime, here’s the original Protect-O-Plate for sh*ts and giggles.
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Old 05-12-2026, 05:17 PM
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I'm still curious on the O76...

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  #26  
Old 05-12-2026, 07:27 PM
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hahaha 25 years later. It was U76 WINDSHIELD ANTENNA - the old sheets were pretty beat up.
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  #27  
Old 05-13-2026, 12:37 AM
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Quote:
Originally Posted by Strict70#2 View Post
In the meantime, here’s the original Protect-O-Plate for sh*ts and giggles.
St. Catharines is a nice community in southern Ontario, not far from the border to NY.

Flipped the PoP so you can read it.

Was your Oshawa build sheet on standard paper like US models or more of a print out on Dot Matrix / continuous computer paper with the small holes on each side?
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  #28  
Old 05-13-2026, 05:40 AM
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I'm sure it was just a small piece of paper with the codes on it.

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Old 05-13-2026, 07:00 AM
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Strict70#2, does the car still have the original engine?
What is the engine code on it?


Also have a pic of the cowl tag?


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  #30  
Old 05-13-2026, 11:36 AM
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Quote:
Originally Posted by Pepper Judge View Post
St. Catharines is a nice community in southern Ontario, not far from the border to NY.

Flipped the PoP so you can read it.

Was your Oshawa build sheet on standard paper like US models or more of a print out on Dot Matrix / continuous computer paper with the small holes on each side?
I found 2 under the back seat. Was on the DOT matrix paper, ya.

  #31  
Old 05-13-2026, 11:37 AM
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Quote:
Originally Posted by johnta1 View Post
Strict70#2, does the car still have the original engine?
What is the engine code on it?


Also have a pic of the cowl tag?

It does have the original engine. Bought it with 43,000 miles on it. I matched the vin when we pulled the engine in 2005. Original tranny, intake, carb as well. Have all the paperwork for maintenance going back to the point of sale.

Ill get you. a pic of the cowl tag when i go home tonight.

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Old 05-13-2026, 02:46 PM
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Cool. Just unusual to have a 400 2bbl in a GTO I figured.
Wonder if that was a Canada thing?
(I haven't looked for engine production figures yet)



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  #33  
Old 05-13-2026, 07:37 PM
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Quote:
Originally Posted by johnta1 View Post
Cool. Just unusual to have a 400 2bbl in a GTO I figured.
Wonder if that was a Canada thing?
(I haven't looked for engine production figures yet)



Where did you get the idea it was a 2 barrel carburetor?

  #34  
Old 05-13-2026, 09:49 PM
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The Protect-O-Plate shows a 400 2bbl on it?

What is the engine code and eun on your engine?


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  #35  
Old 05-13-2026, 10:45 PM
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The build sheet had YS printed on it. The P-O-P looks like it says YD or YU or YJ, hard to say.

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  #36  
Old 05-14-2026, 11:07 AM
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Quote:
Originally Posted by Held for Ransom View Post
The build sheet had YS printed on it. The P-O-P looks like it says YD or YU or YJ, hard to say.
ya POP says YU - def a typo. Its a YS block.


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  #37  
Old 05-14-2026, 11:12 AM
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Quote:
Originally Posted by johnta1 View Post
The Protect-O-Plate shows a 400 2bbl on it?

What is the engine code and eun on your engine?

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  #38  
Old 05-14-2026, 11:20 AM
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The POP says O and VVS report says C for some reason. (engine code)

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Old 05-14-2026, 01:13 PM
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That's the EUN (engine unit number what I call it).
Your POP says 0475581 which is correct so the engine code YD on it is wrong.

The 'c' is because the 1st zero is chipped and it looks like a partial zero or 'C'.

So on your engine it probably has the chipped zero.

Also on your POP which is Canadian, it has the engine code and the eun like the earlier year POP had. I think the US POP did not show it in 1970. (and on)

Which is why I thought it was a 400 2bbl, since a US made car would not have that info.



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  #40  
Old 05-14-2026, 01:23 PM
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I thought that chipped zero happened around 1972? Anyway that would only be if you looked at the actual stamping, the records should show the EUN with a leading zero I would think.

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