Engine codes and cowl tag options:breakdown [Archive] - Chevelle Tech

: Engine codes and cowl tag options:breakdown


notstock71
Nov 8th, 04, 6:07 PM
After making a new guy mistake and posting in the wrong area I am posting here.

I am trying to determine what the specifics of the 327 from dads Chevelle are. Here's the numbers.
Right front pad: F0827FF
Top of bellhousing: H274
Left rear: GM 3782870
Back of block: 870, below that is H22 852, below that is 8.

Also I am having problems decoding the options from the cowl tag. I searched all the links but they give the breakdown from buildsheet codes.

I'll put the whole tag but I have broken most of the top stuff.
ST 11D
67-13617 ATL 13773
TR 761-A A-2 Paint
E2QR 33
4F 5Y-157765

Questions: Does the 11D mean December 11 of 67?What does the A after the 761 mean? What does the 2 mean after the A for Tuxedo black paint? Everything else from the E2QR down is unknown.

I'm going to get the protecto plate from dad tonight and try to decode it next.

Anyone able to bail me out?

David Bates
Nov 8th, 04, 8:16 PM
Block number 3782870: 1962-65 327
H274: looks like August 27, 1964 casting date
F0827FF: Flint assembly plant, August 27th assembly date and FF=?? Could be EE 327/250 or EF 327/300 and definitely not the original engine by the casting date.

11D is the body assembly date, 4th week of November 1966. Correct for an early 1967 car.

E2QR 33 4F 5Y

Option Group 1:
E = A01 Tinted Glass, all windows.

Option Group 2:
Q = ??? 4-speed ???
R = U80 Rear Seat Speaker

Option Group 3:
3 = Check this again as there is no "3"
Edited!! B = C50 Rear Window Defogger

Option Group 4:
F = Z01 Comfort & Convenience Group

Option Group 5:
Y = A49 Deluxe Seat Belts

As for the 157765, it's some sort of assembly plant tracking code which means nothing to me.

notstock71
Nov 8th, 04, 8:27 PM
sorry the 3 is a B

notstock71
Nov 8th, 04, 9:06 PM
OK, here's how the car breaks down:
1967 Chevelle Malibu 2dr hardtop
Built 4th week of November in Atlanta
3773rd built
High Performance 327 with Holley 4 BBL
Muncie 4 speed transmission
Tuxedo Black with black vinyl interior
Options:
Comfort Convenience Group
Deluxe seat belts
Rear window defogger
tinted glass
rear seat speaker
Purchased new 12-31-66 by William Ledford of Maysville KY

Surprisingly the car is still built to these lines. Although the engine isn't original and probably not the trans either (checking #'s soon)it is still correct.

Anyone able to tell if the A after the trim 761 is a bench seat? The car has one. How about the 2 after paint code A? Is it a black vinyl top? It has one of those too.

Thanks to everyone for their help. It's a great thing to be able to know a cars roots and surprising to find out how correct it is. We figured it to be a 6 cyl Powerglide car. Boy were we wrong. Now to try and figure out how many High performance 327 67's were built.

DaleM
Nov 8th, 04, 9:56 PM
Originally posted by notstock71:
3773rd built
Anyone able to tell if the A after the trim 761 is a bench seat? The car has one. How about the 2 after paint code A? Is it a black vinyl top? It has one of those too.

The 13373 is simply the body number assigned by Fisher Body, has nothing to do with the VIN. The last 6 digits of the VIN indicate the build sequence and that number started with 100001 for the 1st Chevelle from that particular plant.

The "A" following the trim code is for bench seats, yes.

The "2" following the paint code is for a black vinyl top.

In the 2nd option group, a Muncie is usually coded "L" and the "Q" is simply listed as a 4-speed. Could be the code for a Saginaw 4-speed.

The "157765" are internal tracking codes. Could be a combination of 2 different codes. Could jsut be numbers for paperwork for the trim or chassis shop's paperwork. For example, the 70 tags have two sets of 6 numbers. All are from block 24 of the build sheet but they're broken down on the sheet into 6 numbers, then 2, then 4 numbers - for some plants such as Atlanta, Baltimore, and Van Nuys. Arlington and Kansas City had different numbers in block 24 of the build sheet. Point is, different plants had different methods of identifying the car being built.

For 67, Atlanta, Framingham, and KC used the -A or -B after the trim code while Baltimore and Fremont didn't. The -A or -B wasn't really needed since the trim code was different for the same color and material between bench and buckets. This happened up to the 71 model when the codes for bench and buckets were the same. Bucket seats then got A51 after the trim and bench got nothing OR A52. :rolleyes:

BTW, I have all the stuff necessary for decoding the POP at my ChevelleStuff site as well. If you'd like to "donate" clear, readable photos of the trim tag and POP to the website, it'd be appreciated :D

You can email me offline if you like.

notstock71
Nov 8th, 04, 10:57 PM
I decoded the protecto plate. That is how I found out it is a Muncie 4 speed car. Here's the protecto plate. Bear with me, I'm reading backwards.

L AA 136177A133139 H
V1108EP CJ0316B Z
P0819 4
William Ledford
Maysville KY
12/31/66

Booklet issued by:
Cheap Chevrolet Co.
Box 348
Flemingsburg KY
Issued by: Johnny Gornbeck

notstock71
Nov 8th, 04, 11:02 PM
As for photos, I'll get dad up here to my house with the digital camera when he gets a chance. I have no problem sharing this stuff to help document these cars. I can't imagine why anyone wouldn't.

Is this a rare car considering the 327HP, Muncie 4 speed and triple black? It also has manual drum brakes but does have power steering, no air. It also had the plastic wood grain steering wheel. It was cracked so I epoxied it up and painted it black. Maybe I'll put it on my Nova.

David Bates
Nov 9th, 04, 5:31 AM
Well, I guess we now know that a "Q" in Option Group 2 was also used for the Muncie 4-speed, at least in a 1967 Atlanta car. And, it's an L79 to boot! Too bad it doesn't have the original engine.

DaleM
Nov 9th, 04, 7:43 AM
I can update my site with that info. Great to have a documented car showing the "Q" was for a Muncie as well - at least in 1967. Wonder why the different code? Oh well... Thanks in advance for sharing the information.

A couple of items seem odd on the POP and trim tag. The body date of 11D (Nov, 4th week) goes with the engine (Nov 8) but the rear end looks like March 16 (?) and trans should be coded something like P (Muncie) 7 (1967), a letter for the month like R (October) or T (November) and then a 2 digit date. Being a relatively early model year, it could be coded like the 66s were and that'd put the date at Aug 19. Then again, it could be an Atlanta *thing*.

A photo or two of the car/interior/engine would be great to go with the story!

notstock71
Nov 9th, 04, 7:25 PM
Everything I have found here says the M22 was not available however dad has a book saying it was but is very rare. His car has an M22 in it.

Main case:3885010
Tail housing:3857584
Side cover:3884685

The P on the cowl tag shows it to be a Muncie car.

Is there ways to verify if this is the original trans as well?

I have also found and contacted the 3rd owner. He asked me to call him back later this evening. We'll see what info I can find. He also has the name and number of the 2nd owner. He knows him, they live up the road from each other. The search for the original owner goes on. I am calling every Bill or William Ledford in Kentucky that are listed in the phone book.

Maybe someone has the original engine.

David Bates
Nov 10th, 04, 5:18 AM
Unfortunately, there is no way to identify a 1967 M22 by the code stamped on it. If you had the build sheet you could tell for sure. But, M22's were not common in 1967 for sure.

DaleM
Nov 10th, 04, 8:29 AM
RE: M22
Does it have a drain plug? Early M22's did. The M22 was only produced in a close ratio version. It would not have been sold with a 3.55 or higher (lower numerically) rear end ratio unless it has been changed by an owner somewhere along the line. The rear end codes to a 3.07 according to the POP. I don't think the casting numbers will identify the ratio (M20/M21/M22). Main case casting # is 66-67. See if there are any numbers "stamped" in the main case, usually just behind the side cover or on the flange where it bolts to the bell housing.

If the trans have never been rebuilt, check the input shaft.
1. The 66-70 M20 would have 2 rings
2. The 63-71 M21 would have 1 ring
3. The 67-70 M22 would have 0 rings
4. All would have a 10 spline input shaft

Not saying it isn't a M22, but without a build sheet or dealer order form, the only real way to tell would be to take it apart and check the angle cut on the gears - M22 has a 20 degree angle cuts while M20/M21 had 45 degree angle cuts. With all the other goodies ordered though, looks like someone really knew what they were after and didn't just pick one off the dealer's lot. graemlins/thumbsup.gif

AZCamino
Nov 10th, 04, 9:47 AM
Is there ways to verify if this is the original trans as well?
The original trans will have the P0819 (same code on POP) stamped on the transmission. The transmission may also be stamped with a partial VIN like 7A133139. 67s with big blocks were stamped with the partial VIN on the engine block and transmission, an L79 might have been stamped also.

Edit: As Dale indicated, the POP says the car had a 3.07 w/metallic brakes (12 bolt), so I agree this car would have most likely had a wide ratio 4-speed (M20).

notstock71
Nov 10th, 04, 10:36 AM
I talked to owners 3 and 4 and found the name of owner #2. Owner 3 bought the car in late 69 or early 70. He worked at a body shop and painted it blue. Used it as a race car. Had the original engine until it threw a rod in 71. Swapped in a 12 bolt rear and welded a tow bar to the front for hauling to the track. Parked it in a barn then moved out to a fence where it sat and sank in the dirt. Still has some original pictures from the track he is sending me.

Owner 4 bought the car from along the fenceline in 93. Last license plates on it were from 73. Needed drivers quarter (dented), pass door and both fenders. Also put in new floors and trunk. Repainted the original black with black top. Also put in new interior. Car kept original heads and intake from original engine. He has the original 10 bolt and possibly the carb. Added power steering. No pictures but is sending all the receipts from the resto.

Owner 3 says owner 2 is the town drunk. No phone or anything. I got his name but it's not going to help.

So the final piece is to mind Mr. William Ledford from Maysville KY (at least in 66).

LeoP
Nov 10th, 04, 7:30 PM
I may be wrong, but I think an L79 car would have had a 12 bolt from the factory, maybe he means the gear ratio was changed.

notstock71
Nov 11th, 04, 9:45 AM
No, owners 3 and 4 both said it had a 10 bolt from the factory, owner 3 put the 12 bolt in. Owner 3 gave the 10 bolt to owner 4 when purchased,4 still has it. The protecto plate is engine cope EP for the H.P. 327 with Holley carb.