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Drivetrain Decode Options Underhood Chassis 1969 Model ID

VIN, Cowl Tag, and other Numbers Decoding

©1998-2014, Camaro Research Group
Edited by Kurt Sonen and Rich Fields
Version: Thursday, 27-Feb-2014 00:59:06 EST

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Cowl Tag Decoder

A program that decodes the VIN and cowl tag information for 67-69 Camaros.
Click (or Shift-Click) to download the first-generation Camaro Cowl Tag Decoder in zip format, version 3.68.      

Drivetrain Decoding

Engine, transmission, and axle decoding information is in the Drivetrain Decoding section.


VIN Information

  1. Vehicle Identification Number (VIN) Decode
  2. Partial VIN Definition and Location
  3. 123x7 VIN vs. 124x7 Cowl Tag Code
  4. VIN compared to Production Date

Cowl Tag Information

  1. Cowl Tag Decode
  2. Exterior Color Codes
  3. Interior Trim Codes
  4. 1967 Cowl Tag - Fisher Body Codes
  5. 1969 Cowl Tag - X Codes

Other Decoding Information

  1. Protect-o-Plate Decode
  2. GM Date Code Formats
  3. Sheetmetal Date Codes
  4. Julian Calendar Generator
  5. Numbers Trivia

 

Vehicle Identification Number (VIN) Decode

The Vehicle Identification Number, or VIN, is stamped on a plate that is riveted to the vehicle. The thirteen-digit VIN used during the first-generation Camaro period has the following format:

1967-1969 Camaro VIN Interpretation
          12ebbYPxxxxxx    e.g. 124379N506070
 where
      1 = Chevrolet
      2 = Camaro
      e = 3  for 6-cylinder engine, or
          4  for 8-cylinder engine
     bb = 37 for coupe body, or
          67 for convertible body
      Y = 7  for 1967 model,
          8  for 1968 model, or
          9  for 1969 model
      P = N  for Norwood, OH assembly plant, or
          L  for Los Angeles, CA assembly plant 
 xxxxxx = vehicle serial number sequence

 At each plant, the vehicle serial number
 started the year at the following number:

    100001 for 1967 models
    300001 for 1968 models
    500001 for 1969 models

As an example, if the first car off the Norwood line in 1968 was an 8-cylinder coupe, then the VIN for this car is 124378N300001. The next car would have been 12xx78N300002 (the xx would be dependent on whether it was a L6 or V8 and a coupe or convertible). The first Camaro off the Los Angeles line in 1968 would be 12xx78L300001.

In 1967, the VIN plate is located on the driver-side A-pillar (front pillar) and is visible when the driver-side door is open.

Starting in 1968, and continuing to the present time, the VIN plate was relocated to the upper dash panel, on the forward portion of the drivers side, and is viewable through the windshield glass when standing at the front edge of the driver's door. The location is shown in this photo.

Starting in August 1969, the complete VIN was also stamped on a conformance sticker that was placed on the driver's door, just above the door striker.

The VIN does not provide any information other than what is listed in the box above. The VIN does not tell if the car is a Z28, SS, RS, etc.

 

Partial VIN Definition and Location

In addition to the official VIN plate, a partial VIN should be stamped on the body sheet metal in two places:

  1. On the cowl in front of the passenger side (underneath the cowl vent panel). You can see it sometimes if you carefully look with a flashlight through the slots in the vent panel, but the panel comes off with a few screws and the wiper arms pop off pretty easily, so this one is not a big deal to get to. The photo below (with the cowl vent panel removed) shows the typical location for this stamp.

  2. On the firewall below the fan motor opening (non-AC cars) or below the heater opening (AC cars). This requires the heater or air conditioning box removal, and therefore most car buyers will not have an opportunity to view this stamp. The photo below of the passenger side of the firewall shows the typical location on a car without air conditioning.
Cowl Partial VIN Firewall Partial VIN
Cowl Partial VIN stamp Firewall Partial VIN stamp

The format of the partial VIN is:

1967-1969 Camaro Partial VIN Interpretation
            YPxxxxxx (1967)     e.g. 7L102030
           1YPxxxxxx (1968-69)  e.g. 18N304050 
 where
       1 = Chevrolet
       Y = 7  for 1967 model,
           8  for 1968 model, or
           9  for 1969 model
       P = N  for Norwood assembly plant
           L  for Los Angeles assembly plant 
  xxxxxx = serial number sequence

Partial VINs were also stamped on most engines and transmissions from 1967 on. Not all engines and transmissions in 1967 were stamped with partial VINs. Details and examples are shown in the Drivetrain Decoding section. However, be aware that the partial VINs can be "restamped" on engines and transmissions by machining off the original stamp (or finding one that is unstamped) and then stamping the desired VIN.

 

12337 VIN vs 12437 Cowl Tag Code

Though it looks very similar to the first five digits of the VIN, the body style code on the Fisher Body cowl tag did not have the same meaning. Fisher Body didn't need the type of engine coded on the cowl tag, and so stamped the 3rd digit of the Fisher style code with a different meaning than the 3rd digit of the VIN.

The 3rd digit of the VIN identifies which engine (L6 or V8) the car had from the factory. A VIN engine digit of 3 indicates a L6 engine, while a VIN engine digit of 4 indicates a V8 engine.

The cowl tags for 1967 Camaros were stamped with a style code of 12x37 or 12x67, where the x was set to 4 for standard interior or 6 for custom interior. All 1968-69 Camaros (L6 or V8) had a style code of 12437 or 12467 on the cowl tag - the 3rd digit of the firewall style number for these two years was fixed to 4 and effectively had no meaning.

For related information, see also the Cowl Tag and Numbers Trivia sections.

 

Cowl Tag Decode

The cowl tag is a small aluminum tag riveted to the driver's side of the firewall in the engine compartment. The tag was stamped at the Fisher Body assembly plant (not the Chevrolet vehicle assembly plant, which was a separate entity) with characters describing basic characteristics of the body build. Below is a summary of the major cowl tag fields, referred to below as fields a thru g. Despite several variations of cowl tag formats and shapes, the bulk of the information remained the same for the 1967-1969 model years. 1967 was the last (and only, for Camaro) year for inclusion of option related codes. There were also a few other changes in field content from year to year, as described below.

(These discussions apply only to U.S.-built bodies sold by GM in North America and are not applicable to models assembled outside of the U.S. Note that 1968 Yenkos and 1968 non-Canadian export models, not requiring the statement of certification to the Federal Motor Vehicle Safety Standards, were shipped with 1959-1963 style Fisher Body tags that are absent the 1968 certification statement. And 1969 export tags are often blank on the bottom of the tag.)

1967-1968 Cowl Tag Fields
 Field locations (also clickable  
 with your cursor on the tags to
 the left & described below)
____________________________________

         BODY BY FISHER
       a                b
     ST  c            d  BODY
     TR  e            f  PAINT
         g(67 only)

 

 

 

 

1969 Cowl Tag Fields
 
         BODY BY FISHER
     ST  c             d  BDY
     TR  e             f  PNT
         a          b(LOS)/g(NOR)   

   
1967 NOR Cowl Tag
1967 NOR Cowl Tag
1968 LOS Cowl Tag
1968 LOS Cowl Tag
1969 NOR Cowl Tag
1969 NOR Cowl Tag
date intpnt body style code Plant code Interior trim Paint code 67codes date w/o body style code Plant code Interior trim Paint code body style code Plant code Interior trim Paint code date X code

  Field a - body build date code
This is composed of two digits (01 thru 12 corresponding to each month of the year) and a letter (A thru E corresponding to the week of the month) and indicates when the assembly of the body was started. For example, 11C means the body assembly was started during the third week of November of that model year. 05A would mean the body assembly was started during the first week of May.

  Field b (LOS vs NOR)
LOS - Fisher Body body scheduling code

The LOS (Los Angeles/Van Nuys) body scheduling code is a letter followed by one to three digits, e.g., F103. Based on data analysis (there is no GM documentation that describes this code, but the data is consistent across thousands of datapoints), CRG believes the code was used by LOS Fisher Body (and other plants that built multiple carlines) to aid in scheduling the body build order.

The letter indicates the approximate day of the month for the start of the assembly of the vehicle body. It is only an approximate date because it appears that the day on the tag was actually when the vehicle was being scheduled to be built. The actual start of production could vary by a few days.

The code began with letter "A" on the first day of the month of the Fisher production calendar, incremented at the start of each additional production day to the next alphabetic letter, and was reset to letter "A" at the start of the next production month. (Note that the Fisher production calendar is known to differ from the calendar month, and we also do not know exactly how the Fisher production calendar related to the Chevrolet monthly production reporting calendar.)

The one-to-three digit sequence number that follows the letter was reset to 1 at the start of each day and generally incremented serially with each body built by the factory as the day progressed. Due to scheduling requirements, this progression was not absolute and vehicles chould be built out of tag sequence. Data analysis indicates that the sequence number at the LOS plant was assigned regardless of model or body type. By this we mean that Camaros and full-size passenger cars both incremented the same sequence counter. The unit counter was reset to 1 the next day as the day-of-the-month code letter incremented to the next letter. In the example, F103 would indicate approximately the sixth day of production for a given month and about the 103rd body on that sixth day of production.

NOR - (1967 only) NOR interior paint code

The NOR (Norwood) interior paint code, used only during 1967, is a single letter and is the same character as used on the Protect-o-Plate (POP). See the POP decoding section for other details on the Norwood interior paint code.

  Field c - body style code 12xx7 (See also this explanation of why the Fisher style and VIN prefix differed.)
The two digit year ("67," "68," or "69") was followed by a five-digit "ST" body style code, e.g. 12437. The first two digits of the style code are the model code ("12") and the last two digits are body code ("37" for coupe and "67" convertible).
While the Fisher style code is often confused with the first five digits of the VIN, the two codes are different because of the different meaning of the third digit. In 1967, the third digit of the style code was set to "4" for standard interior or "6" for custom interior (e.g. a style code for a 67 convertible with custom interior would be 12667). In 1968-69, the third digit was fixed at "4" for all models (L6 and V8) and had no meaning.

  Field d - assembly plant code
The next three letters represent the assembly plant ("NOR" for the Norwood, Ohio factory and "LOS" for the Los Angeles (Van Nuys), California factory. In mid-December 1968, the "LOS" was changed to "VN."
The digits that follow, up to six, represent the Fisher body number. Details on the body number can be found in the Body Number article. The body number is not the same as the VIN sequence. In 67-68, the body number was approximately sequential, increasing as more cars were built during the model year. In 69, the body number was assigned when the order was accepted, not when the body when built. Body numbers from cars that were built at the same time can vary significantly, depending on how quickly the order was fulfilled.

  Field e - interior trim code
The first three digits of the trim ("TR") code are a unique (for each year) interior color and type code that indicate the color and standard or custom interior.
1967 tags also have a hyphenated suffix that indicate seat and headrest type:
    Z - standard A50 Strato Bucket seats (no headrest)
    Y - RPO AS2 headrest added to the A50 bucket seats
    H - RPO AL4 Stato Bench seats (no headrest)
    T - RPO AS2 headrests added to the AL4 bench seats

  Field f - exterior paint code
The "PAINT" or "PNT" fields show the body paint color and the top color, including vinyl or convertible top, if so equipped. For cars without a vinyl or convertible top, the body paint color was stamped on the tag twice, e.g. E-E or 69-69.
Paint codes were alphabetic in 1967-68, and numeric in 1969. Vinyl and convertible top codes were numeric in 1967-68, and alphabetic in 1969. Two-tone paint was offered only with the 1969 models. Special paint cars were marked with special codes, as noted in the special paint section.

  Field g - body-related option codes (see the 1967 Fisher Option Codes and the 1969 Norwood X codes)
In 1967 this was a list of numbered option groups where each character represented a body-related option that required some action on the part of Fisher Body to alter the "baseline" configuration.
This information was eliminated in 1968, but in mid-year 1969, the Norwood Fisher Body plant began using a new body paint/trim coding scheme - the famous X codes and other codes including D80, Z10, and Z11.

1967 "fleet and special order" (F&SO) codes were also stamped in this area of the tag by both factories to indicate special vehicle order(s). For example, one of the groups of 1967 Norwood-built Indy Pace Car replicas used the "-061A" F&SO code.

 

Exterior Color Codes

Below are the CRG tables, with footnotes, for exterior paint and vinyl and convertible top colors, and the relationships between them. Related topics that are also covered below include:

Cowl tags and POP tags in 1967 and 1968 used a letter code for body paint and a numeric code for the vinyl/convertible top. Cowl tags changed in 1969 to use of a numeric code for the body paint (with two-tone paint now a Camaro option) and a letter code for the vinyl/convertible top color. For cars without a vinyl or convertible top, the body paint color was stamped on the tag twice, e.g. E-E or 69-69.

The 1969 colors are presented in the same row as the two-letter RPO suffix that was added to the 1969 window sticker. For example, 1969 Dover White, code "50", is shown in the Exterior Paints Table in row "C". This means that the cowl tag would have shown "50-50" and the window sticker, as shown in the Exterior Paint RPO Codes Table, would have had "5911CC DOVER WHITE" printed on it (where the initial "5" is the Chevrolet prefix indicating Camaro).

Non-standard paint color and striping color could be ordered, and such cars were specially marked. See the Special Paint section for more details.

Stripe colors (white or black, with red added in 1969, and pace cars being a special exception) were selected based on body color. In 1967-68, there were three color combination exceptions where top color overrode that selection. In 1969, stripe color selection became more complicated as Chevy decided to make the stripe color vary depending on the top color. 1967-68 stripe colors are shown in the table below. The 1969 Stripe Color table shows the 1969 stripe color (W=White, B=Black, R=Red) as a function of top color and type; the legend for the top color codes are shown in the Convertible Top Colors and Vinyl Top Colors tables.

   

1967-1969 Camaro Exterior Paint Color Codes
          1967                       1968                          1969   
 Code  Body Color / Stripe   Code Body Color / Stripe       Code  Body Color (3)
 ----  ------------------    ---- -------------------       ---- ---------------  
   A   Tuxedo Black / W        A  Tuxedo Black(del) / W      10  Tuxedo Black    
   B   --                         --                         69  Cortez Silver   
   C   Ermine White / B        C  Ermine White / B           50  Dover White     
   D   Nantucket Blue / W      D  Grotto Blue / W            53  Glacier Blue    
   E   Deepwater Blue / W      E  Fathom Blue(del) / W       51  Dusk Blue       
   F   Marina Blue / W (1)     F  Island Teal / W            71  LeMans Blue     
   G   Granada Gold / B        G  Ash Gold / B               65  Olympic Gold    
   H   Mountain Green / B      H  Grecian Green(del) / B     --  --              
   J   --                      J  Rallye Green(add) / W      79  Rallye Green  
   K   Emerald Turquoise / B   K  Tripoli Turquoise / B      55  Azure Turquoise 
   L   Tahoe Turquoise / W     L  Teal Blue / W              --  --              
   M   Royal Plum / W             --                         63  Champagne       
   N   Madeira Maroon / W      N  Cordovan Maroon / W        67  Burgundy        
   O   --                      O  Corvette Bronze(add) / B   --  --
   P   --                      P  Seafrost Green / B         76  Daytona Yellow  
   Q   --                         --                         72  Hugger Orange   
   R   Bolero Red / W (1)      R  Matador Red / W (2)        52  Garnet Red      
   S   Sierra Fawn / B         S  --                         61  Burnished Brown
   T   Capri Cream / B         T  Palomino Ivory(del) / B    --  --             
   U   --                      U  LeMans Blue(add) / W       --  --             
   V   --                      V  Sequoia Green / W          57  Fathom Green 
   W   --                         --                         59  Frost Green (4)
   Y   Butternut Yellow / B    Y  Butternut Yellow / B       40  Butternut Yellow  
   Z   --                      Z  British Green(add) / W     --  --                

As of Jan 68, colors A, E, H, and T were deleted, and colors J, O, U, and Z were added. 

Stripe Color: W=White, B=Black
 
               1969 Two-Tone Coupe Colors
   DC  --                     --             53-50 Glacier Blue/Dover White
   KC  --                     --             55-50 Azure Turquoise/Dover White
   DE  --                     --             53-51 Glacier Blue/Dusk Blue
   ED  --                     --             51-53 Dusk Blue/Glacier Blue
   GC  --                     --             65-50 Olympic Gold/Dover White
   SM  --                     --             61-63 Burnished Brown/Champagne

Table Footnotes:

  1. 1967: Marina Blue and Bolero Red have Black stripes with Black vinyl/convertible tops.
  2. 1968: Matador Red have Black stripe with Black vinyl/convertible top.
  3. 1969: Colors 10, 67, 40, 61, 51, 53/51, 51/53, and 61/63 were initially special order from LOS/VN. 40, 63, 61/63 were initially special order from NOR. The special order restriction was lifted circa January 1969. Note that "special order" is different from "special paint."
  4. 1969: 59 Frost Green was also called Frost Lime in some references.
 
1969 Camaro Stripe Color vs Top Color
                                 Vinyl    Convertible 
 1969               Body Color  top code   top code
 Code  Body Color    (no top)  B E F C S     B  A
 ---- ---------------  -----   ---------    ------
  10  Tuxedo Black      W(1)   W W - - W     W  W
  40  Butternut Yellow  B      B B B - -     B  B
  50  Dover White       B(2)   B B - B B     B  B
  51  Dusk Blue         W      W W - W -     W  W
  52  Garnet Red        B      B W - - -     B  W
  53  Glacier Blue      B      B W - B -     B  W
  55  Azure Turquoise   B      B W - - -     B  W
  57  Fathom Green      W      W W - - W     W  W
  59  Frost Green       B      B W - - B     B  W
  61  Burnished Brown   W      W W W - -     W  W
  63  Champagne         B      B W B - -     B  W
  65  Olympic Gold      B      B W B - -     B  W
  67  Burgundy          R(3)   R W - - -     R  W
  69  Cortez Silver     B(2)   B W - B -     B  W
  71  LeMans Blue       W(4)   B W - - -     B  W
  72  Hugger Orange     W      B W - - -     B  W
  76  Daytona Yellow    B      B B - - -     B  B
  79  Rallye Green      W      B W - - B(5)  B  W

                                  
     Stripe Color: W=White, B=Black, R=Red
Table Footnotes:
  1. 1969: Tuxedo Black coupes with Black interior and D90, DX1, or D96 stripe (not Z28) and without* vinyl top received a Red stripe. (* Note: Original paint black cars with black vinyl tops have a red stripe, so GM documentation appears to be in error on this detail).
  2. 1969: Cortez Silver and Dover White coupes with Red interior and D90, DX1, or D96 stripe (not Z28) and without vinyl top received a Red stripe.
  3. 1969: The default stripe color for Burgundy was red. However, the "Camaro Striping Color Application Chart" dated 4/1/69 documents the Burgundy models that received white stripes: Z/28 or non-Z/28 with either Parchment vinyl top or white convertible top.
  4. 1969: While the dealer literature reports that a black stripe is the default color with LeMans Blue, only white stripes have been observed in practice, except for special orders.
  5. 1969: 79 Rallye Green was added as allowable color for the Midnight Green Vinyl Roof circa January 1969.

 

1967-1969 Camaro Convertible Top Colors
 67-68                             1969
 Code    1967 Color  1968 Color    Code 1969 Color
 -----   ----------  ----------    ---- ----------
   1      White       White          A   White
   2      Black       Black          B   Black
   4      Med. Blue   Blue

 * The default convertible top was white. Black or 
   blue (67-68) had to be specially designated.

 

1967-1969 Camaro Vinyl Top Colors
    1967           1968           1969
 Code  Top      Code  Top      Code   Top           1969 Body Colors *
 ---- ------    ---- ------    ----  -----------     ----------------
   2  Black       2  Black       B   Black           All colors
       --             --         C   Dark Blue       50, 51, 53, 69 
   6  Beige /     6  White       E   Parchment       All colors
     Light Fawn                  F   Dark Brown      40, 61, 63, 65
     (off-white)                 S   Midnight Green  10, 50, 57, 59, 79(Jan)
                                                      

  * Other 1969 body colors could be ordered with the non-Black and 
    non-Parchment top colors, but would require confirmation (via ZP2
    color override) before the order would be accepted into the system.

 

SPECIAL PAINT DESIGNATION

Special paint cars were identified with a unique paint code on the firewall cowl tag. Special paint was any non-standard Camaro color; it could be a GM color or any other color. (The Cadillac Firemist colors were the only colors not available. Since they had such a coarse metallic, the Firemist colors needed to be sprayed through a special paint gun.)

In 68, if any of the four colors that were deleted mid-year (see note in the Exterior Color table) were ordered in the latter part of the year, the cowl tag was coded as special paint on Norwood cars (though Los Angeles cars normally used the cancelled color code).

In 1968-69, either deletion of a stripe or use of a non-standard stripe color was also considered to be special paint.

On the window sticker and on broadcast copy sheets, "1001AA" and "1001HA" have been observed as designating special paint cars. Note that all cars were painted, no cars were shipped from the assembly plant in primer.

Cowl Tag Coding
1967 special paint cars used the letter "O" instead of the normal color code. For early model year 1968, the designation for special paint cars changed to the letter "Z". However, new mid-year colors needed codes assigned to them, and starting January 1968 the letter "Z" paint code was used to denote the newly available Camaro color called British Green, and simultaneously the notation of special order paint was changed to a dash "-". The "-" (dash) special paint code continued for the rest of the 1968 model year as well as for the entire 1969 model year. Due to changes and differences in how the factories marked the paint codes (especially differences in 1968 factory formats), the special paint formats are easier to illustrate in the examples in the Special Paint Table below than to describe in words.

 
Cowl Tag Examples for Special Paint
                  Paint   Vinyl Top/Convertible
                  -----   ---------------------
    1967
      NOR/LOS      O-O             O-2
 
    1968 early
      NOR          Z Z             Z 2
      LOS          Z-Z             Z-2
 
    1968 late 
      NOR          - -             - 2
      LOS          ---             --2
 
    1969
      NOR/LOS      - -             - B
    -------------------------------------------
 
(1) Note that black tops are shown in all the examples.
 
(2) CRG isn't clear at this time how a 1967 "stripe delete"
    car was marked. Stripe delete was considered "special 
    paint" in 1968-69.
 
(3) In 1967 only, a dash can follow the standard option 
    codes at the bottom of the cowl tag. This dash may 
    appear by itself or it may precede a Fleet & Special 
    Order (F&SO) code. This dash has been observed on all 
    known special paint cars. It is believed that this dash 
    indicated that there were special instructions (the 
    F&SO paperwork) available for the vehicle. The dash
    would also be on vehicles ordered as part of a fleet.
 

WINDOW STICKER PAINT CODES

Related to the cowl tag and POP paint codes was the production component code for body paint that appeared on the window sticker was similar for all three years. Even in 1969, when the numeric codes were used for paint on the cowl tag, the window sticker production code still included an alphabetic production component code suffix similar to those used in 1967 and 1968. For example, Tuxedo Black (coded as A in 67 and 68, and 10 in 1969) appeared this way on window stickers:
1967: 5900AA TUXEDO BLACK
1968: 5900AA TUXEDO BLACK
1969: 5910AA TUXEDO BLACK
While the "900 code" in 1969 was 910, and the cowl tag code was also a 10, this appears to have been coincidence, or at best, an isolated equivalence. As you can see from the table below, no other colors had this equivalence in 1969.

1967-1969 Camaro Exterior Color
Window Sticker RPO Codes
             Window Sticker RPO Code 
             -----------------------
 Body Color   1967    1968    1969
 ----------  ------  ------  ------
  A or 10    5900AA  5900AA  5910AA 
  B or 69      --      --    5912BB
  C or 50    5900CC  5900CC  5911CC
  D or 53    5900DD  5900DD  5922DD
  E or 51    5900EE  5900EE  5923EE
  F or 71    5900FF  5900FF  5924FF
  G or 65    5900GG  5900GG  5915GG
  H          5900HH  5900HH    --
  J or 79      --    5900JJ  5925JJ
  K or 55    5900KK  5900KK  5921KK
  L          5900LL  5900LL    --
  M or 63    5900MM    --    5917MM
  N or 67    5900NN  5900NN  5914NN
  O            --    5900OO    --
  P or 76      --    5900PP  5926PP
  Q or 72      --      --    5927QQ
  R or 52    5900RR  5900RR  5913RR
  S or 61    5900SS    --    5918SS
  T          5900TT  5900TT    --
  U            --    5900UU    --
  V or 57      --    5900VV  5920VV
  W or 59      --      --    5919WW
  Y or 40    5900YY  5900YY  5916YY
  Z            --    5900ZZ    --
   53/50       --      --    5954DC
   53/51       --      --    5955DE
   51/53       --      --    5956ED
   65/50       --      --    5957GC
   55/50       --      --    5958KC
   61/63       --      --    5959SM

 

Interior Trim Codes

The 1967-1969 first-generation Camaro interior trim codes are summarized in the tables below. Note that the first column is the interior paint code that was used on the 67-68 Protect-o-Plate and the 1967 Norwood cowl tag.
 
1967 Camaro Interior Trim Codes
 Int.
 Paint Interior           Standard  Standard  Custom   Custom
 Code  Color               Bucket   Bench(1)  Bucket  Bench(1)
 ----- -----------------  --------  --------  ------  -------- 
  E    Black                760       756      765      767
  B    Blue                 717       739
  D    Red                  741                742
  G    Gold                 709       796      711      712
  K    Parchment/Black(2)                      797
  R    Bright Blue                             732      716
  T    Turquoise                               779
  Y    Yellow                                  707
 -------------------
 (1) Bench seat not available in convertible.     
 (2) Carpet, instrument panel, and steering wheel are black.
1967 interior codes also have a hyphenated suffix that indicate seat and headrest type:
   "Z" indicated standard A50 Strato Bucket seats (no headrest)
   "Y" indicated RPO AS2 headrest added to the A50 bucket seats
   "H" indicated RPO AL4 Stato Bench seats (no headrest)
   "T" indicated RPO AS2 headrests added to the AL4 bench seats.

1968 Camaro Interior Trim Codes
 Int.
 Paint Interior           Standard  Standard  Custom   Custom
 Code  Color               Bucket   Bench(1)  Bucket  Bench(1) 
 ----- -----------------  --------  --------  ------  --------
  E    Black                712       713      714      715
  B    Blue                 717       718      719      720
  D    Red                  724                725
  G    Gold                 722       723      721
  K    Parchment/Black (3)                     730
  K    Ivory/Black (3)                         711
  Q    Black Houndstooth (2)                   749
  V    Ivory Houndstooth (2,3)                 716
  T    Turquoise                               726      727
 -------------------
 (1) Bench seat not available in convertible.     
 (2) Houndstooth not available in convertible.
 (3) Carpet, instrument panel, and steering wheel are black.
     730 Parchment was early and was a different color from
     the Ivory. 711/716 were late and used the same Ivory color.

 

1969 Camaro Interior Trim Codes
    Interior                 Standard    Custom
    Color                     Bucket     Bucket
    ----------------------   --------   --------
    Black                      711        712
    Dark Blue                  715        716  
    Medium Red                 718        719
    Medium Green               721        722
    Midnight Green             723        725
    Ivory/Black                727
    Black Houndstooth (1)                 713
    Ivory Houndstooth (1)                 729
    Orange Houndstooth (1,2)              720
    Yellow Houndstooth (1,2)              714
    -------------------
(1) Houndstooth not available for convertible except
    for RPO Z11 pace cars/replicas.
(2) 720 Orange Houndstooth normally available only with 72      
    Hugger Orange. 714 Yellow Houndstooth normally available 
    only with 76 Daytona Yellow. Other exterior colors, such
    as 10 Tuxedo Black and 50 Dover White, have been observed
    with both interiors, but in limited quantities. 
    At this time, it isn't clear if these color combinations
    required a special order, or were routinely available.

 

1967 Cowl Tag - Fisher Body Codes

(Note: See the Cowl Tag section for other details on the cowl tag.)

A table of the known 1967 Camaro Fisher Body option codes is below. The Fisher factory documentation for these codes is not in circulation - if it still exists at all. Nevertheless, a large number of the code meanings have been confirmed via a Fisher production form called the Uniform Option Identification Tag (UOIT) that was sometimes (fortunately for us) left in the car during build - often under the carpet or inside the headliner. Those codes that have been confirmed via available UOITs are so noted - and the exact wording of the UOIT description is shown in capital letters. The remaining codes have been decoded via statistical analysis, and are therefore not known exactly, but by inference. The CRG would appreciate a contact from anyone that has found an original UOIT form so that different versions (even of codes we already know) can be compared, and inferred codes determined exactly.

At the LOS factory, the 2M code was used for either the Powerglide or the TH400 automatic transmission, i.e. the 2Z code was not used at LOS.
At the NOR factory, the 2M code only applied to M35 Powerglide transmissions that were in combination with the D55 console.

The 4P code was not used at the start of production at either the Van Nuys plant or the Norwood plant.
Van Nuys started using the 4P code on the SS350 cars in September, but Norwood didn't start using the 4P code until October. Early Van Nuys SS350 cars and Norwood SS350 cars built before October will not have the 4P code to verify that they are SS's.
The 4P code can indicate either a SS350 or a L30/M20. Usage of the 4P code with the L30/M20 is believed to have started in the late December 1966 / January 1967 timeframe.

The very first 1967 Z28's and L78's were also coded 4P; the 4L and 4K codes were then used on the remainder of 1967 Z28 and L78 production.

The lack of a 4P, 4L, 4N, or 4K code indicates the car originally had a 327 (assuming the car had a V8, as indicated by the VIN). The only exception is the early SS350's noted above.

1967 LOS Cowl Tag

 

This tag decodes as having the following options:
756-H = (AL4) Strato Back Bench Seat -
             black standard interior
1E = (A01) Tinted All Glass
1X = (A31) Power Windows
1L = (A67) Fold-down rear seat
2E = (C60) Air Conditioner
2M = (M35) Powerglide Transmission
4F = (D33) Mirror Remote Control
5C = (AS1) Shoulder harness - regular

 

1967 Cowl Tag Fisher Option Codes
Group Number Code RPO
Equivalent
UOIT Description *
Interior
Suffix Codes
H AL4   Strato Back (bench seat) without headrests
T AL4 & AS2   Strato Back (bench seat) with headrests
Z A50 yes STRATO BUCKETS (without headrests)
(The A50 Strato-bucket without headrest was the
default seat and was not specifically noted on an order.)
Y A50 & AS2 yes BUCKETS & HEAD REST
Strato-bucket seats with optional headrests.
 
(1)
implied, the
"1" is not on
the tag
E A01 yes TINTED ALL GLASS
W A02 yes TINTED W/S ONLY
X A31   Power windows
L A67 yes FOLDING REAR SEAT
D C06 yes POWER TOP CONVERT
2 G D55 yes CONSOLE FRT COMPT
M M35 yes PWR GLIDE AUTOMATIC
(NOR - only used in combination with D55)
(LOS - Powerglide or TH400)
L M20 (or M21) yes 4-SPEED FLR SHIFT
Z M40   TH400 3-speed automatic transmission
(NOR only)
B M11   3-speed floor shifter for M15 or M13
H C48 yes HEATER *DELETE*
E C60 yes AIR COND
U U57 yes TAPE PLAYER
S U73 yes ANTENNA MANUAL-RR
R U80 yes SPEAKER REAR
3 L Z22 yes RALLY SPORT PKG
D U29 yes LAMP COURTESY
(coupe-only underdash lights)
B C50 yes DEFOGGER REAR WDO
S Z23 yes INTERIOR DECOR GRP
K Z21 yes EXT MOLDG GROUP
4 P L48 or L30/M20   SS350 or L30/M20 - Non-SS396/Z28 paint with radius rod
(See note above on early Norwood use.)
N L35 yes ENGINE REINF ASY
SS396/325hp - Black tailpan with radius rod
K L78 yes ENGINE REINF ASY
SS396/375hp - Black tailpan with radius rod
L Z28 yes ENGINE REINF ASY
Z28 - Rally stripes with radius rod
F D33 yes MIRROR REM CONT
5 C AS1 yes SHOULDER HARN-REG
Y A39 yes BELTS ALL DELUXE
B V32   Large rear bumper guards
Z A85 yes SHOULDER HARN-DELX
O A48   Seatbelt delete
Used on export models for countries for which U.S.
belts were not compliant with local requirements
(compliant belts were added after importation).
* Fisher option codes that have been confirmed (via UOIT's) are shown with their UOIT descriptions in capital courier font letters.
 

The "5O" code has been observed a number of times. Thanks to Ove Sjoholm of Camaro Club Sweden, we have found that this code appears on all Swedish export Camaros (it has since been observed on most Camaros exported to other countries), suggesting that it is related to the export conversion of a Fisher installed component. Ove has noted that Sweden had more restrictive belt/harness requirements and it is known that Swedish Camaros had Swedish-compliant belts added locally. We have also received corroborating evidence of this code being a seat belt delete on Corvair from the 65-67 Corvair tag code research of Kent Sullivan and crew.

Note: the "2K" code for the N33 tilt wheel has previously been reported in the Camaro press, but it has not been observed on any vehicle in the CRG database, including 67's with a documented N33 option installation. A Fisher Body code would not be expected for this option because the tilt wheel was installed in the vehicle during the Chevrolet portion of the assembly process, not during the Fisher portion.

 

1969 Cowl Tag - X Codes

The Xnn codes were a mid-1969 model addition to the Fisher Body cowl tags of Norwood-built Camaros, starting with the 12B (second week of December) build week. (CRG has found 12B cars both with and without these codes. Our data for all cars in prior weeks is absent this code, and our data for all cars in weeks following contain this code.) These codes were an aid for Fisher body assembly workers to identify body trim and paint changes required for different Camaro models. The codes are divided into two groups: those with the Z21 style trim option and those without the Z21 style trim option.

The Z21 Style Trim group was part of the Z22 Rally Sport option, so RS cars are part of the group with the Z21 style trim option. Thus RS cars can only be X11, X22, or X33.
X11, X22, or X33 cars have to have style trim, but from the code you can't tell if the car also had RS.
X44, X55, X66, and X77 cars cannot have the Rally Sport (or style trim) option.

1969 Norwood Camaro Fisher Code Interpretation
  with Z21 Style Trim       without Z21 Style Trim
  (or Z22 Rally Sport)       (or Z22 Rally Sport)
 -----------------------    ----------------------
 X11* non-SS396, non-Z28,    X44* non-SS, non-Z28
      includes SS350         X55  SS350
 X22  SS396                  X66  SS396
 X33  Z28                    X77  Z28 

 * COPO Camaros were an exception, as most COPOs 
   were built out of bodies coded with X11 or X44.
   Some early COPOs had X22 or X66-coded bodies.
   
 Additional 1969 Norwood Fisher codes that were 
 used instead of the X-codes include:
   Z10 - Indy Pace Car replica coupe
   Z11 - Indy Pace Car replica convertible

 Additional 1969 Norwood Fisher codes that could be
 combined with the X-codes include:
   D80 - signifies the car was equipped with D80 
         spoilers, but the code was not always used. 
    A  - signifies the car was equipped with power 
         windows, but the code was not always used.

A few mid-year 69's, mostly convertibles, did not have X-codes stamped on the cowl tag. It is unknown why the code was not stamped on the tag.

Note that X11 and X44 codes also included L26 230ci/130HP and L22 250ci/155HP 6-cylinder engine cars, as well as models equipped with the LF7 327ci/210HP, L14 307ci/200HP, L65 350ci/250HP, or LM1 350ci/255HP engines.

So, how many cars were coded X11?
Some quick math yields that 77% of 1969 Camaros were non-SS and non-Z28. After Dec 68, these cars would be coded X11 and X44. Multiplying the that percentage with the percentage of cars that had style trim or RS (58%) yields a little more than 44% of X-coded 69's were non-SS X11's. A similar calculation on the SS350 (9% of 69's) production quantity yield that less than half would be X55, the balance would be X11, about 5%. Adding these totals together shows the total of X11-coded cars to be approximately 50% of all 1969 X-codes. The corollary is that only about one in ten of X11-coded cars are actually SS350's.

X-code explanation

The following will help explain why the X-codes were arranged that way and their specific purpose. The need for this organization revolves around the elements of the Z21 Style Trim option in 1969, which included the following items:

So what specific features did the X-codes imply; what did the codes mean to the workers on the Fisher assembly line? The X22, X33, X66, and X77 code differences are easily explained by paint differences (Z28 stripe and 396 tailpan), so it is the X11, X44, and X55 codes that require greater analysis. To further confuse matters, the non-Z21/Z22 1969 SS cars did incorporate a subset of Z21. To understand the differences between the X11, X44, and X55 codes, examine the comparative table below:

X11, X44, and X55 Body Trim and Paint Features
                                  Non-SS                  SS 
                             -----------------     ------------------
                   Code      X44    X11    X11     X11   X11   X55

                            no Z21                            no Z21 
                   Option   no Z22  Z21    Z22     Z21   Z22  no Z22
                            ------  ---    ---     ---   ---  ------
 Black body sill              no    yes    yes     yes   yes   yes 
 Rear quarter moldings        no    yes    yes     yes   yes   yes 
 Driprail molding             no    yes    yes     yes   yes   no 
 Wheel opening moldings       no    yes    yes     yes   yes   no 
 Wheel opening pinstripes     no    yes    yes     no    no    no 
 Bright taillamp trim         no    yes    no      yes   no    yes
 Bright headlamp bezel trim   no    yes    no      yes   no    yes

    Z21 = Style Trim
    Z22 = Rally Sport

As can be seen from the table above, the X11 code always includes the first four features: the use of black body sill paint and the use of the trim moldings (rear quarter louver, driprail, and wheel opening). The difference between X11 and X55 is that X55 does not apply the driprail and wheel opening moldings.

From this table, we can deduce that the wheel opening stripes, headlamp bezels, and taillamp lenses were not a factor in the X-codes. The table also show that the addition of Z22 (which eliminates the bright taillamp and headlamp trim, since the Rally Sport lamps are different) has the same effect on the X-codes as Z21.

Going back to the X22, X33, X66, and X77 codes, their meanings are now clear. X22 and X33 codes have the same meaning as the related X11 code, but with an added blacked-out tailpan for X22, and with an added Z28 stripe for X33. The X66 code has the same meaning as X55, but with a blacked-out tailpan. The X77 code has the same meaning as X44, but with a Z28 stripe. Including these meanings in a table covering most of the major trim features for all of the X-codes, and adding in the related Z10 & Z11 codes, we get the following result:

Body Trim and Paint Features of the 1969 X & Z Codes
                              with Z21 or Z22               without Z21 or Z22
                        -----------------------------    ------------------------ 
                     non-SS396/Z  SS396 Z28              non-SS/Z SS350 SS396 Z28
 Features                  X11     X22  X33  Z10  Z11      X44     X55   X66  X77
 -------------------    --------- ----- ---  ---  ---    -------  ----- ----- ---
 black body sill           yes     yes  yes  no   no        no     yes   yes  no
 rear qtr moldings         yes     yes  yes  yes  yes       no     yes   yes  no
 driprail molding          yes     yes  yes  yes  no        no     no    no   no
 wheel open moldings       yes     yes  yes  yes  yes       no     no    no   no
 blacked-out tailpan       no      yes  no   no   no        no     no    yes  no
 Z28 rally stripe          no      no   yes  yes  yes       no     no    no   yes

 

Protect-o-Plate Decode

The Protect-o-Plate (POP) is a small stamped metal plate that was provided with each vehicle by the factory as part of the warranty and service package. It was atttached to the vehicle's warranty booklet. When the vehicle was sold, the dealer added the customer's data name and address to the metal plate via Dymo-type stamped plastic adhesive labeling. Note that the data is stamped on the POP as a mirror image, so that the imprint from POP was correctly oriented.

The POP contains basic ID data about the powertrain components (engine and carburetor, transmission, and rear axle) as well as selected factory installed options, and the month of manufacture. 1967-68 POPs also showed the exterior colors from the cowl tag as well as the interior paint color (the interior paint color is also shown on the 1967 Norwood cowl tag, but not on the Los Angeles cowl tag).

POP data were stamped on a 8 row by 30 column grid at predefined coordinates. Instructions for stamping the POP data were contained in the assembly manual for each year, and decoding instructions were included in parts manuals and service manuals and bulletins. There are nine basic fields - illustrated in the POP transcription below and summarized field by field in the following list. For each data item, the row/column positions of the starting and ending cells on the plate are noted, with rows being labeled A thru H, and columns as 1 thru 30.

In the simulated 1968 POP below, each of the bold-faced monospace characters in the field of the plate is selectable and leads to a more detailed description of that field, which, in turn, often has a link to even more detail. The example describes a 1968 Camaro with a gold interior and British Green body with a white vinyl top. After the VIN is the code for a Carter carburetor. The engine is a L30 327ci/275HP for a manual transmission, the axle a 3.07:1 ratio 12-bolt, the vehicle was assembled in January, and the transmission is a Saginaw 4-speed. The details of the specific component decodes can be found in the links to the Drivetrain Decoding page in the descriptions that follow.

The 1969 POP pictured (below right) decodes as a Norwood-built car that was assembled in March with a Bay City carburetor, 307/200hp engine, Powerglide transmission, 2.73 10-bolt axle, and a radio.

1967-1969 Camaro Protect-o-Plate Format
  Columns
  1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
 
R
o
w
s
A   G   Z 6   1 2 4 3 7 8 L 3 1 2 3 4 5   C  
B T 0 1 0 3 E A   B L 1 2 2 3 G   1  
C R 8 S 2 1   3   4 5 1 1    
D  
E (this area reserved for use by the
F dealer for application of the initial
G owner's name and address via Dymo
H embossed adhesive tape label)
  
1969 Protect-o-Plate
Protect-o-Plate

The option field in the 68 POP example above decodes as follows. The first option position at C-15, the "3", indicates power steering (N40) and power brakes (J50). The second option position at C-16 was unused in 1968. The third position at C-17 indicates AM radio (U63) with rear speaker (U80). The fourth position at C-18 indicates F41 suspension with disc brakes (J52). The fifth position at C-19 indicates air conditioning (C60). And the option code in the sixth position at C-20 shows electric windows (A31).

The coordinates and details of each of the nine fields follow:

  1. A-1     Interior Paint (1967-68 only)
    One-character code that is also used on the 1967 Norwood Cowl Tag, and is described in detail in the Interior Colors section.

  2. A-5 to A-6     Exterior Paint (1967-68 only)
    Two-character code that is also used on the Cowl Tag, and is described in detail in the Exterior Colors section. The first character describes the lower body color and the second character describes the upper body color. For 1967-68 the upper body color was always the same as the lower body unless a vinyl top was installed or the car was a convertible.

  3. A-15 to A-27     Vehicle ID Number
    The 13-character code that is the same as is used on the vehicle VIN plate.

  4. A-29     Carburetor Code
    One-character code that describes the source for the carburetor.
         B = Bay City (1 bbl/2 bbl)
         C = Carter (2nd source for Rochester)
         R = Rochester (2bbl/4bbl Quadra-Jet)
         H = Holley (4bbl)
         

  5. B-1 to B-7     Engine Assembly/Application Code
    Seven-character code that begins with the engine factory code letter and is followed by the assembly date as a 2-digit month and a 2-digit day of month, then ends in a 2-letter application code. This entire code is the same code stamped on the front of the engine block.

  6. B-15 to B-21     Rear Axle Assembly Code
    Seven-character code that begins with the 2-letter axle factory application code, is followed by the assembly date as a 2-digit month and a 2-digit day of month, and ends in a 1-letter factory code. This entire code is the same code stamped on the axle, except for the absence on the POP of any shift suffix or positraction code. Note that when faced with an axle of uncertain vintage, the year of manufacture must be derived from the axle center section calendar year casting date.

  7. B-29     Vehicle Build Month
    One-character code from the following table.
               Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul
          1967  V   L   R   K   Z   S   P   W   N   Y   T   X
          1968  8   9   O   N   D   1   2   3   4   5   6   7
          1969  8   9   O   N   D   1   2   3   4   5   6   7
     late 1969  8   9   O   N
         
  8. C-1 to C-5     Transmission Assembly Code
    This five-character (typically) code begins with the engine factory/transmission code letter and is followed by the model year last digit (not the calendar year) and the assembly date as a 1-character month and a 2-digit day of month. This entire code is the same code stamped on the transmission pad, flange, pan, and/or tag. The TH400 uses a different code format - see the tranmission decode page.

  9. C-15 to C-21     POP Option Codes
    The first digit of the POP option codes starts immediately under the first digit of the axle code. The digits are position-significant and interpretation also changes as a function of model year. Note that some 1968 codes were used for vehicles built late in the 1967 model year.

    In the table below, the locations are noted as positions a through g. The meaning of the RPO codes (such as J50 and J63) listed are available in the downloadable option spreadsheet. Also, see the further explanatory notes below the table.

 
1967-1969 Camaro POP Option Fields
(click on the bottom of the table if it's not displaying properly)
                     POP Position and Meaning
 POP   POP             
 Year Value   a        b        c       d       e     f      g
 ---- ----- ------  -------  -------  ------   ---  ------  ---
 1967   1    N40    U35/U63*   U80     ---     C60   A31    ---
        2    J50      ---      ---     F41     ---   ---    A67
        3  N40/J50    ---      U63     J52     ---   ---    ---
        4    ---      ---    U63/U80   ---     C48   B93    ---
        5    ---      ---      U69   J52/F41   ---  A31/B93 ---
        6    ---      ---    U69/U80   ---     ---   ---    ---
        7    ---      ---      ---     ---     ---   ---    ---
        8    ---      ---      ---     ---     ---   ---    ---
        9    ---      ---      ---   J52/J56   ---   ---    ---


 1968   1    N40    B37/B93#   U80     F40     C60   A31    ---
        2    J50      ---      U79     F41     ---   ---    A67
        3  N40/J50    U35#     U63     J52     ---   ---    ---
        4    --- B37/B93/U35# U63/U80 J52/F40  C48   N65    ---
        5    ---      ---      U69    J52/F41  ---  A31/N65 ---
        6    ---      ---    U69/U80   **      ---   ---    ---
        7    ---      ---    U69/U79   **      ---   ---    ---
        8    ---      ---      ---     **      ---   ---    ---
        9    ---      ---      ---     ---     ---   ---    ---   

 
 1969   1    N40      J50      ---     ---     C60   ---    ---
        2    ---      ---      ---     ---     ---   ---    ---
        3    ---      ---  (any radio) J52     C75   A31    ---
        4-9 not used
 _______________________________________________________________

 * aka Radio/Clock Group
 ** Documented as J56 Camaro codes Camaro in CDSIB 68-1-1, 
    but not applicable to Camaro. See comments below.
 # Limited LOS use, previously undocumented. It is unknown if 
   both B37 and B93 were indicated in this field.

Again, the option field in the 68 POP example shown at the top of this section translates as follows:
The first option position at C-15, the "3", indicates power steering (N40) and power brakes (J50). The second option position at C-16 was unused in 1968. The third position at C-17 indicates AM radio (U63) with rear speaker (U80). The fourth position at C-18 indicates F41 suspension with disc brakes (J52). The fifth position at C-19 indicates air conditioning (C60). And the option code in the sixth position at C-20 shows electric windows (A31).

Options were tracked more fully in 1967 and 1968 than in 1969. In 1967-68, codes were generally selected such that option combinations, in keeping with efficient computer coding practices of the day, could be obtained by adding together the codes of each single option. Several options and their permutations could be recorded with a single digit. For example, in position d for 1968, J52=3 and F41=2, so the combination of J52/F41 was assigned the value of 2+3=5. From this practice we can infer the existence of codes that do not actually appear in the Chevrolet Service News Bulletins. For example, in earlier CRG research, the 1967 code for B93 Door Edge Guards was inferred to be 4 in position f, since A31 was known to be 1 and the A31/B93 combination was known to be 5. The inferred value for B93 without A31 was later confirmed by other GM records, which also confirmed the previously inferred A67 code in field "g" for 1967.

  There are a few items of note about position d (Brake / Suspension) in the option field:

10. C-29     Chevrolet Symbol - vertically oriented

    Warranty and Canadian Protect-o-plates

Replacement POP's obtained when the warranty was tranferred to an new owner did not contain any drivetrain data. Warranty POP's contain very limited data, mainly only the VIN, the new owner's name, the warranty period (normally 5/50, 5 years/50,000 miles), and the warranty start date.

Canadian-sold vehicles were provided with unique Canadian warranty booklets. 1967 Canadian vehicles have a plastic protect-o-plate that is only stamped with minimal information like the VIN, the buyer's name, and the zone and dealer's number.  

GM Date Code Formats

The internal GM convention for date-coding parts used two formats for the month. Both started with the letter "A" for January and progressed through the alphabet ("B" for February, "C" for March, etc.). The two formats differed in the usage of the letter "I".

For cast-in date codes on GM-produced iron and aluminum castings (engine blocks, heads, intakes, water pumps, etc.), the letter "I" was used for September, and the last month of the calendar year (December) was the letter "L". For stamped-in date codes on GM-produced components (alternators, distributors, starters, etc.), the letter "I" was not used - "I" was skipped, and "J" became September, with December being "M".

(See the Casting codes article for more information on casting dates and codes.)

To summarize: For GM-produced parts, the month code for calendar year dates that are cast into parts runs from "A" through "L" (including the letter "I"), while the month code for calendar year dates that are stamped onto parts runs from "A" through "M" (skipping the letter "I").

 
              Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 
              --- --- --- --- --- --- --- --- --- --- --- ---
 Cast Date     A   B   C   D   E   F   G   H   I   J   K   L
 Stamped Date  A   B   C   D   E   F   G   H   J   K   L   M

A common stamped date code format is (year)(month)(day). 8C26 would decode as 8=1968, C=March, and 26=26th day.

A common cast date code format is (month)(day)(year). B129 would decode as B=February, 12=12th day, 9=1969.

"M"-Coded Blocks
There is one exception to this convention that has been observed: some blocks have been seen with "M" cast codes. Research by the Saginaw Metal Casting Operations of GM Powertrain Division has found that these "M" codes are not date codes, but actually a foundry code used to indentify parts that were made to evaluate a casting process change. After evaluating the parts, the blocks would either be destroyed or released into production. There is no way to determine the date an "M"-coded block was poured.

 

Sheetmetal Date Codes

Sheetmetal was stamped with a Fisher Body "run number" by the stamping plant that produced the part. The run numbers were inserts in the draw die to identify the plant and the week of production and also served as proof marks to verify full die travel to closure. Almost every panel on the body will have a run number. The first letter (occasionally 2 letters) of the run number identifies the stamping plant and the number is the week (e.g. 40th week) of the calendar year when the panel was stamped.

Sheetmetal Run Numbers
Sheetmetal run number stamped on firewall, H40 Sheetmetal run number stamped on brace, K30 Sheetmetal run number stamped on decklid, TA19

Chevrolet-stamped parts (hoods, fenders, header panels, etc) only have the production week stamped on them.

Chevrolet Date Stamps
Hood dated week 43 Fender dated 45

 

Julian Calendar Generator

GM dated some components using a Julian type of calendar, where the days are counted continuously, starting on January 1st. For example, February 1st would be day 32. The calculator below will generate the Julian calendar for the 1966 through 1969 calendar years.

Select Month and Year, then click GO!

           JavaScript Required

 

Numbers Trivia

Some GM documentation indicates that the first-generation Camaro GM series designation, at some point, had a somewhat different meaning than what was finally executed on the VIN plate and cowl tag. This "original" meaning involved the third digit of the VIN, and the choices were given as:
  3 or 4 for standard Camaro
  5 or 6 for deluxe Camaro
The actual forms, as executed on the VIN plate and cowl tag, were subvariants of this more complete version. On the VIN plate, 3 and 4 were used on the VIN to indicate the number of engine cylinders - with no indication of interior. In 1967, the first year, Fisher Body used 4 and 6 on the cowl tag to denote standard or deluxe interior. The original plan in its entirety was probably the following (though we have only incomplete documentation of this final version):
  3 = L6 standard
  4 = V8 standard
  5 = L6 deluxe
  6 = V8 deluxe
We don't know at this time why this format was not followed in full.

 



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