Author Topic: Engine Code POP and Block Pad  (Read 748 times)

Brew14u

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Engine Code POP and Block Pad
« on: October 01, 2021, 08:29:45 PM »
For a born with engine, shouldn't the engine assembly code on the Protect-o-Plate match the engine pad stamp?  My car was resold early and I only have the warranty POP, which does not provide much information; however, I have some early receipts that have the POP imprint.  The POP imprint shows the engine code to be T0605DZ, but the engine pad shows V0605DZ.  I think it's the born with engine further supported when I found the date to match and the DZ code.  I didn't question the T at the time, but recently was reading that DZ engines were not assembled at Tonawanda.  I have also read about typos on POPs. so that is my current assumption because I am guessing that the POPs were manually created and subject to mistakes.  Any other known examples of this kind of discrepancy in the POP engine code or other explanations for what may have caused the discrepancy?

x66 714

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Re: Engine Code POP and Block Pad
« Reply #1 on: October 01, 2021, 09:01:34 PM »
You'll need to post some quality pictures for the experts to determine....Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

Brew14u

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Re: Engine Code POP and Block Pad
« Reply #2 on: October 02, 2021, 12:38:41 AM »
Here are some pictures, but the quality may not be good.

Brew14u

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Re: Engine Code POP and Block Pad
« Reply #3 on: October 02, 2021, 12:42:43 AM »
That didn't work.  Here's another try.

Brew14u

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Re: Engine Code POP and Block Pad
« Reply #4 on: October 07, 2021, 02:03:49 AM »
Here is another attempt at reducing the KB of the pictures to stay below the limit.

cook_dw

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Re: Engine Code POP and Block Pad
« Reply #5 on: October 07, 2021, 12:13:22 PM »
I wouldn't trust the warranty book 100% and you will also need to share higher res photos of the pad to get a better opinion on the legitimacy of the stamp in question.  This might require you to remove the alternator to do so.  But to sorta answer your main question; yes there are known mistakes on POP's. 

firstgenaddict

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Re: Engine Code POP and Block Pad
« Reply #6 on: October 07, 2021, 01:11:20 PM »
That is not the first 69 Z28 POP I have seen which was mis-stamped with a "tonawanda" DZ.
James
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Brew14u

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Re: Engine Code POP and Block Pad
« Reply #7 on: October 07, 2021, 04:28:33 PM »
Exactly what I wanted to know.  I appreciate the responses.  Given what I know about the history of this car and the documentation that I have, I am fairly certain that it has the born with drivetrain.  I may pull the alternator and clean the pad to get better pictures.  Thanks.

firstgenaddict

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Re: Engine Code POP and Block Pad
« Reply #8 on: October 07, 2021, 04:37:25 PM »
Do not use anything abrasive on the pad.
Just use some lacquer thinner on a rag, then lightly oil it with rem oil or boeshield.
James
Collectin' Camaro's since "Only Rednecks drove them"
Current caretaker of 1971 LT1's - 11130 and 21783 Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://plus.google.com/photos/112392262205377424364/albums?banner=pwa

Brew14u

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Re: Engine Code POP and Block Pad
« Reply #9 on: October 11, 2021, 04:52:02 PM »
Here are a few more picture of the pad after cleaning with lacquer thinner.

bcmiller

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Re: Engine Code POP and Block Pad
« Reply #10 on: October 11, 2021, 07:43:38 PM »
POP just seems to be an error, not a big deal.

I will try to see if I have any examples of that DZ date stamp later.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

bcmiller

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Re: Engine Code POP and Block Pad
« Reply #11 on: October 12, 2021, 03:48:31 PM »
Engine stamping seems to be fine.

Maybe others will chime in.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

Brew14u

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Re: Engine Code POP and Block Pad
« Reply #12 on: October 19, 2021, 05:37:44 PM »
I appreciate the responses and information.