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Author Topic: Engine Code Stamping on Block  (Read 9792 times)

Vince

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Engine Code Stamping on Block
« on: December 03, 2008, 05:34:30 PM »
In every picture I've seen of the codes stamped on the plate in front of the passenger side head on the block it shows the nine character code first followed by the seven character engine production code (reading from left to right).  On my engine the seven character code comes first followed by just the 6 digits from the VIN, or I haven't been able to see the 1,9, and then a N or L.  Is this possible, a mistake on the assembly line, or is my engine probably a restamp that was done incorrectly?  My car is a Los Angeles car built the 3rd week in Jan., 1969.  Thanks guys for all your helpful knowledge.   
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1968RSZ28

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Re: Engine Code Stamping on Block
« Reply #1 on: December 03, 2008, 05:38:33 PM »
Vince -

Post a good photo of your engine pad.  There are experts here that can tell you if it has been restamped.

Paul
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69Z28-RS

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Re: Engine Code Stamping on Block
« Reply #2 on: December 04, 2008, 08:23:15 PM »
Aren't big blocks stamped opposite order from SB engines?  re the VIN and app codes?   I may be screwing this up, but I know I've read sometime in the past a reason/situation for the opposite order....
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1968RSZ28

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Re: Engine Code Stamping on Block
« Reply #3 on: December 04, 2008, 08:45:36 PM »
Quote from: 69Z28-RS on December 04, 2008, 08:23:15 PM
Aren't big blocks stamped opposite order from SB engines?  re the VIN and app codes?   I may be screwing this up, but I know I've read sometime in the past a reason/situation for the opposite order....

http://www.camaros.org/drivetrain.shtml#PadStamps

Paul
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69Z28-RS

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Re: Engine Code Stamping on Block
« Reply #4 on: December 04, 2008, 11:28:14 PM »
The point I was trying to make was that all the biig block engines I've seen have the application code stamp on the LEFT hand side of the pad, and the VIN on the right hand side.   The CRG page you referenced does not address that difference that I've seen (and I went back and looked again in response to your post)...   ie.  Big blocks stampings are ordered oppositely from Small blocks re the VIN and App stamped codes...
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09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

1968RSZ28

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Re: Engine Code Stamping on Block
« Reply #5 on: December 05, 2008, 01:30:31 AM »
Quote from: 69Z28-RS on December 04, 2008, 11:28:14 PM
The CRG page you referenced does not address that difference that I've seen (and I went back and looked again in response to your post)...   ie.  Big blocks stampings are ordered oppositely from Small blocks re the VIN and App stamped codes...

Yes it does!!  Click on the center image and read the note on the bottom!     :)

Paul
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Vince

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Re: Engine Code Stamping on Block
« Reply #6 on: December 05, 2008, 05:53:15 PM »
Thanks for the info.  I'll try to get a good photo when I can and post it.  The engine is installed in the car and the pad is painted over. 
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69Z28-RS

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Re: Engine Code Stamping on Block
« Reply #7 on: December 05, 2008, 09:14:37 PM »
1968RSZ28 wrote:  "Yes it does!!  Click on the center image and read the note on the bottom!     "

.... so I went and looked again, and he was right.    but the information was too small to read 'without clicking on it'...  so that information was 'almost hidden' to me.... as I read thru.  I think the importance of that info is sufficient, that it should be made more prominent....  just a suggestion....
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69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

nwbalddog

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Re: Engine Code Stamping on Block
« Reply #8 on: December 05, 2008, 10:12:30 PM »
Big Blocks have an alternative location as well, by oil filter, based upon some good documentation on theCRG site, my BB is on this location
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1968RSZ28

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Re: Engine Code Stamping on Block
« Reply #9 on: December 06, 2008, 02:12:06 AM »
Quote from: 69Z28-RS on December 05, 2008, 09:14:37 PM
1968RSZ28 wrote:  "Yes it does!!  Click on the center image and read the note on the bottom!"

.... so I went and looked again, and he was right.

That guy is always right!     :D

Quote from: 69Z28-RS on December 05, 2008, 09:14:37 PM
the information was too small to read 'without clicking on it'...  so that information was 'almost hidden' to me.... as I read thru.  I think the importance of that info is sufficient, that it should be made more prominent....  just a suggestion....

Good point.  Kurt, can we put the following statement at the end of the text just above the "Typical Engine Pad Stamp" photo?...

Note: The engine code location and the partial VIN location are switched on big block applications.  Small block engines are stamped as shown in the photo below.

If not, how about including a big block engine pad photo?  Six cylinder?

 :)

Paul

   
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