COPO 9511

[Nova Research Project]

Hey All,

Consistent repeatable facts are what will make (or break) this review.

Let's start here as this is where the order process began:

1. The 1969 Nova Order form. On the Back of one would be the Available RPO axle options.

2. The Salesman Order and Price Guide. Specifically the <span style="font-style: italic">Vehicle Price Schedule</span>. This is from the catalog not the pocket price guide. This document has the limitations associated with the RPOs. Including what axle ratio was available (or not) with certain engine / transmissions combinations. It also included the power team chart and the associated ordering procedures.

These prices guides were updated at least quarterly. As things may have changed, it would be good to reference as many versions as possible.

I do not have hard copies of these documents. I will look to see if I have digital copies. If any one else has them please post.

Greg

[Schonyenko2]

I have a copy of the ad for Kevin Suydamn's 69 Yenko Nova. It shows 4.10 rear. Does not state BE, or BV. Marlin, you explained the other day that the people who restored the car thought it was a COPO until they figured out that the info was not lined up correctly on the sheet. Any insight from that sheet to add to this discussion? It was my understanding that the 69 Yenko Novas were BV. If they started life as L78s are there docs on how they were ordered with rear codes?

I'd like to see docs on anything higher than 3.55. I've had an e mail stating 3.55 was all you could get in 69 without going through the 9511 process.

[Nova Research Project]

Hello Ken,

The original order form would have the non-standard axle ration written in on the Special Ratio line and the ZQ6 Performance Ratio box checked. Of course it would have to meet the rules in the Vehicle Price Schedule.

The non-standard axle ratio would be listed on the Window Sticker. Either under the order code listed above or possibly as ZQ6.

Axle code would not be listed on the Fisher Body sheet. However, the Engine code could be for L48, L34, and L78 in 1969. I believe that was the part that started the COPO thought (by it being on the wrong line due to a printer misalignment).

Another document that would show the axle code would be the GM Chassis Broadcast sheet. Line 6 Box 236. I have only ever seen one for 1969. While I have seen about a dozen for 1970.

And finally the POP would show the broadcast code.

Greg.

[Nova Research Project]

As review, here are the listed RPO Axle codes and the associated broadcast and order codes:

1969 Nova....<span style="text-decoration: underline">Broadcast Code</span>
RPO...Ratio..Standard..G80 (Posi)
G76...3.36...BC*.......BD*
G92...3.08...PA*.......PE*
G94...3.31...BM........BS
G96...3.55...BN+.......BT+
G97...2.73...BI*/BP*...BQ*/PX*
GT1...2.56...BA*/PB*..BB*/PC*
H01...3.07...BL#.......BR#
<span style="color: #FF0000">None..3.73...BO........BU
None..4.10..............BV
None..4.56..............BW
None..4.88..............BX
</span>* 10 Bolt
+ Standard for L78 Manual
# Standard for L78 Auto

This is from published Chevy documents. Which only means these would fit into a Nova not that you could actually order them. As the Camaro shared the same parts, it makes the research tricky.

<span style="font-weight: bold">So the question is, which of these were available in a 1969 Nova, and if so how was it ordered?</span>

1969 Nova....<span style="text-decoration: underline">Broadcast Code</span>
RPO...Ratio..Standard..G80 (Posi)
<span style="color: #FF0000">None..3.73...BO........BU
None..4.10..............BV
None..4.56..............BW
None..4.88..............BX
</span>
Greg