Fender markings

[Kurt S]

The piercing codes either start with X or Y, e.g. XC.
While the COPO cars often have 427 in this location, I don't recall seeing a piercing code here, fwiw.
I have seen three letters written here, G, M, and R (and 427).
The G was a Z28. M has been non-RS. R has been RS. G & M have been exclusive of each other. Don't have any notes on SS cars.

(I hate when I miss that there's a second page of posts!)

[William]

Box 104 on the BBC is for the fender emblem.

Very limited data indicates C for 307, E for 396, F for 350, G for Z/28, H for 327. Wonder why COPOs had 427 written there as they would have the same piercing and no engine ID emblem as the base 230" six cylinder.

Also, COPOs and Z/28s [non RS] have the same YA piercing code. Non HP cars are XA.

The scribbling on the extension may be tribal knowledge.

[X66 714]

Here's another. This was a true SS with style trim w/o R/S. Fender run number 37. I don't know the engine size. Fender is damaged there...Joe

[Kurt S]

Originally Posted by William

Box 104 on the BBC is for the fender emblem.

Very limited data indicates C for 307, E for 396, F for 350, G for Z/28, H for 327.

Thanks Bill! I got caught up in looking for fender extension pictures that I forgot this.
C - 307/327
D - L22 L6
E - 396
F - 350
G - Z28
H - 327 (no idea why this car isn't C)

And:
M - Z21
R - RS/Z22

And there's your 69 decoding ring.

[70 copo]

Originally Posted by Kurt S

Thanks Bill! I got caught up in looking for fender extension pictures that I forgot this.
C - 307/327
D - L22 L6
E - 396
F - 350
G - Z28
H - 327 (no idea why this car isn't C)

And:
M - Z21
R - RS/Z22

And there's your 69 decoding ring.

Kurt,

I am posting this for the production superintendent. A man in his mid 80's so I am asking you to be nice and reply or simply ignore it for the benefit of the others watching the thread.

1. The Photo posted there is LOS Not Norwood. I thought the subject was about a fender extension marking from Norwood?

2. Los was TOWVEYOR. Mostly different assembly method used at the two plants.

3. What is the accuracy of the control group? Are all of the images being shown verified as coming from Norwood?

4. Sequencing was to be used. Marks were applied to insure a valance assembly made it to the correct doghouse.

5. ARO's were frequently in SMFA. Some these personnel were barely literate, they knew numbers but had poor reading skills. The more ARO's assigned to an area the more sequencing markings would assist them.

(ARO) Absentee Replacement Operator, (SMFA) Sheet Metal Final Assembly

6. The assumption that any operator, supervisor, or anyone else for that matter had the additional time to create a complex series of abbreviations duplicated from a manifest block to sub control assembly processes is patently absurd as that would require a huge and costly human capital training program to insure compliance and would not be strictly limited to a few markings on a sheet metal panel here or there.

[ZLP955]

Couple more examples:

[m22mike]

The top one is mine from a Copo m21, 721 I restored
Mike

[ZLP955]

Originally Posted by m22mike

The top one is mine from a Copo m21, 721 I restored
Mike

Thanks Mike, I saved those pictures a while ago but lost my notes on their source. Was it a non-RS car, and if so, did it have style trim?

[m22mike]

Originally Posted by ZLP955

Thanks Mike, I saved those pictures a while ago but lost my notes on their source. Was it a non-RS car, and if so, did it have style trim?

Yes, non RS and Z21 trim.
I miss typed in my other post. 721, but ment. Z21

[ZLP955]

From this photo in the CRG assembly process article, the buck-built front end was assembled with much of the grille components and headlights, so the build configuration including paint color, any striping, std or RS grille and headlights and hood style would be significant during that sub-assembly, as well as the fender piercing already discussed.
The ident number can be seen on the driver side of the firewall, so a corresponding number on the front end seems logical.

Image reposted from the CRG site.