option codes

[L72]

Happy New Year! I've got a couple option codes I can't find any info on,can't find my build sheet (YET?),but have printout from GM Canada...ZN1,ZP2,ZW1.. are these anything "special" 69 copo chevelle. thanks much.

[restorer]

L72, the GM printout on my Camaro lists the ZN1 as dual exhaust and ZW1 as an M-22 transmission, but it also lists the M-22 as a seperate option. I am curious as to why it is listed twice with different codes. Wes

[Keith Tedford]

ZP8 and ZV6 also show up some times. I've seen no rhyme nor reason to these numbers and Gm of Canada doesn't know either. I've seen ZN1 listed as a spring option in other cars. Neither of our Baltimore cars appear to have had build sheets either.

[Edited by Keith Tedford (01-04-2002 at 02:51 AM).]

[L72]

keith,my car is also a baltimore car,one of the previous owners,not knowing it was a copo,because of the L78 code,and missing engine,since recovered,remembers giving the build sheet to the next owner,so this particular car seems to hve had a sheet,hopefully there's another in the car yet... thanks for the help guys,i've got a boatload of questions yet,but am learning tons from this site..

[JoeC]

There is a lot of confusion on the Canadian RPOs. I have not found a listing for them. I was looking for some for a 300 Deluxe that has Canadian documentation. It has T93 LAMP TAIL & STOP (SPECIAL) but I can't find it listed anywhere. It appears that Chevy used additional repetitive RPOs for Canada documentation for some reason. The George Zapora Canadian documentation sometimes has conflicting information and I heard one guy recieved different information from them on the same car.
I have some in my notes but have seen different definitions for some of them so I do not know if these are correct. Maybe we can reference these to what other people have received from the George Zapora Canadian documentation.
ZN1 COPO AXLE 4:10
ZP1 COPO TIRES RWL F70x14
ZP8 MFG STATEMENT OF ORIGIN
ZV9 SPECIAL ORDER PROCESSING
ZW1 COPO TRANS M22
ZV7 M21
ZV6 M20
ZQ9 PERFORMANCE AXLE RATIO
ZK8 TIRE PRESSURE DECAL

[Edited by JoeC (01-04-2002 at 01:13 PM).]

[COPO PETE]

Ok, here's what I get off my sheets that I have available.
ZJ7: special wheel hub cap & trim ring
ZK8: tire pressure sticker
ZP1: COPO Tires
ZQ7: Canadian warranty booklet
Z23: Interior decore package
ZK3: deluxe seat belts & front shoulder harness
ZN1: 4:10 ratio, COPO package (heavy duty guts?)

OK now don't laugh anyone but here is my theory on the nexy four numbers
ZW1: M22 driveshaft
ZV7: M21 driveshaft
ZV9:turbo 400 driveshaft
ZV6: M20 Driveshaft
I have only seen ZV6 once and it was on a M20 COPO Chevelle. It should be the same shaft as the M21 but... Anyone want to tear that theory to shreds?????
Note: most these number came off Camaro sheets but some off Chevelle!
Go easy on me
Peter

[JoeC]

Pete, Your info and mine is pretty close except why do you have "driveshaft" ? Is that on the Canada documentation or is that on your build sheet?

[COPO PETE]

Joe, it's a complete shot in the dark. Those numbers always pretty much come up with the tranny combo. Everything else gets listed on the build sheets to tell the line which part to put on, what tells them about driveshaft. Box 19 on the build sheet lists the drive shaft code I believe. BY on the M21 cars and BA on the M40 cars. The GM of Canada code has something to do with tranny's or related parts. Comes from the GM microfilm that tells what parts came on the car. Like I said, just a shot in the dark, if nothing else it makes for good entertainment for the night.
Peter

[Mr70]

COPO PETE
I found the same thing on my Canadian Records.
These are twin COPO Chevelles built on Baltmore line,then Shipped to Canada for sale new.
One built with an M-22,the other an M-40.

The M-40 I have the Buildsheet,and it states BA in box 19.The Chevelle M-40 COPO:
ZK8-Tire PSI
ZN1-4:10 special axle
ZP1-RWL F70X14 tires
ZP3-Special Paint
ZQ7-Canadian Warranty Booklet and Literature.
ZV9-M-40 Driveshaft

The Chevelle M-22 COPO.No buildsheet,as per George Zepora:
ZK8
ZN1
ZP1
ZP3
ZP8
ZQ7
ZW1-M-22 driveshaft

Did you recieve my Fax number?
Rick

[Keith Tedford]

The information that I have on COPO cars holds true for the relationship of drive shaft codes to transmissions as well. Where I have complete information, ZN1 shows up every time. (KQ rearend probably).
Regarding ZP1 COPO tires, not all cars show this code. Ours doesn't and came new with PL5 F70 X 14 Uniroyal white lettered tires. Others with PL5 do show ZN1. A friend's COPO came with Firestone raised white letter tires. Our L78 car came with PW7 F70 X 14 white stripe tires. Question is, what is an L78 tire? Was there anything special? They seem to be the only difference between a 9562EA and 9566AA COPO Chevelle.
Some build sheets show the Zxx codes and some don't. I'm wondering if the shipping lists perhaps did the same thing, leaving things out from time to time.
More parts to the puzzle or more questions?

[Edited by Keith Tedford (01-05-2002 at 10:28 PM).]