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[C2] 1963 ECL Codes

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Old Jan 26, 2026 | 07:26 PM
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Default 1963 ECL Codes

Hi All,

Wondering if anyone might be able to help decode a 1963 Corvette showing 490CG on the trim section of the trim tag?

Thanks so much!
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Old Jan 26, 2026 | 08:01 PM
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490 = Vinyl, C = Red. I do not have information on the ‘G’.

GaryC

Last edited by GaryC; Jan 28, 2026 at 12:57 PM.
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Old Jan 26, 2026 | 08:19 PM
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You sure it's a '63? I don't see double ECL codes for '63 unless it begins with X. The CG appears for '64, '66, and '67.

http://www.stl-vettes.com/65Vette/tr...m_Tag_Main.htm
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Old Jan 26, 2026 | 11:53 PM
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Originally Posted by barkingrats
You sure it's a '63? I don't see double ECL codes for '63 unless it begins with X. The CG appears for '64, '66, and '67.

http://www.stl-vettes.com/65Vette/tr...m_Tag_Main.htm


definitely a 1963. See above
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Old Jan 27, 2026 | 07:59 AM
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Default ECL codes

According to AUTHENTICATION LIBRARY VOL 1 by Al Grenning & Roy Sinor 490= Vinyl C=Red does not identify G. A significant number of known-to-be-original 1963 Corvettes have interior trim designations that differ from original tables. The new system went through growing pains, and errors obviously happened. Hope this helps.
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Old Jan 27, 2026 | 11:50 AM
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Thanks so much Spider2401 - Is there any information on double character 1963 ECL codes aside from the ones that start with X?
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Old Jan 27, 2026 | 11:59 AM
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No just the X noted.
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Old Jan 27, 2026 | 10:17 PM
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Below is the only K3 date tag off the '63 registry.

edit: Deleted the rest - forgot '63 followed different coding system.





Last edited by barkingrats; Jan 27, 2026 at 10:39 PM.
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Old Jan 27, 2026 | 10:25 PM
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Not way off-base. K3 is a week, not a date. 3rd week of July 1963. Thanks so much for that picture of the other trim tag. That coupled with some off-line messages from members are very encouraging and informative. Cheers!

Last edited by Onemtm; Jan 27, 2026 at 10:37 PM.
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Old Jan 27, 2026 | 10:37 PM
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Originally Posted by Onemtm
Yep, not way off-base but off-base nonetheless. K3 is not a date it is a week. 3rd week of July 1963.
DAMN it, that's twice in the last couple months that the '63 date coding has kicked me in the behind. Of course you're right -- I should have looked up the code rather than rely on any sort of code standard.
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