1971 Ford Mustang 429 Production Numbers

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Adrian Clements

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I do not own a 1971-1973 Ford Mustang, but am requesting admission to the forum so that I can learn about these cars.
I own 6 1967 FoMoCo products: 5 1967 Ford full-size cars, and 1 1967 Meteor (a product of Ford Motor Company of Canada, Ltd.).
Folks,

Here are the production numbers for the 1,865 Ford Mustangs produced during the 1971 model year with the C-code 429-4V CJ & SCJ non-Ram Air engines and the J-code 429-4V CJ & SCJ Ram Air engines:

C-code 429-4V CJ non-Ram Air V-8: 294 total

- 91 4-speeds: 5 hardtops, 0 Grandés, 7 SportsRoofs, 78 Mach 1's, 1 convertible

- 203 C6 automatics: 6 hardtops, 12 Grandés, 12 SportsRoofs, 164 Mach 1's, 9 convertibles

C-code 429-4V SCJ* non-Ram Air V-8: 59 total

- 39 4-speeds: 6 hardtops, 0 Grandés, 8 SportsRoofs, 25 Mach 1's, 0 convertibles

- 20 C6 automatics: 3 hardtops, 1 Grandé, 3 SportsRoofs, 13 Mach 1's, 0 convertibles

J-code 429-4V CJ Ram Air V-8: 958 total

- 251 4-speeds: 7 hardtops, 1 Grandé, 9 SportsRoofs, 230 Mach 1's, 4 convertibles

- 707 C6 automatics: 14 hardtops, 20 Grandés, 5 SportsRoofs, 648 Mach 1's, 20 convertibles

J-code 429-4V SCJ* Ram Air V-8: 554 total

- 367 4-speeds: 6 hardtops, 1 Grandé, 29 SportsRoofs, 326 Mach 1's, 5 convertibles

- 187 C6 automatics: 1 hardtop, 3 Grandés, 13 SportsRoofs, 167 Mach 1's, 3 convertibles

* Denoted by a V-code 3.91:1 Traction-Lok or a Y-code 4.11:1 Detroit No-Spin rear axle

I hope that this information proves to be interesting to you.

Yours in old Ford iron,

Adrian

 
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1971 mustang Mach 1, 429CJ, J Code SOLD 3/2016

1971 Boss 351 Mustang
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Folks,

Here are the production numbers for the 1,865 Ford Mustangs produced during the 1971 model year with the C-code 429-4V CJ & SCJ non-Ram Air engines and the J-code 429-4V CJ & SCJ Ram Air engines:

C-code 429-4V CJ non-Ram Air V-8: 294 total

- 91 4-speeds: 5 hardtops, 0 Grandés, 7 SportsRoofs, 78 Mach 1's, 1 convertible

- 203 C6 automatics: 6 hardtops, 12 Grandés, 12 SportsRoofs, 164 Mach 1's, 9 convertibles

C-code 429-4V SCJ* non-Ram Air V-8: 59 total

- 39 4-speeds: 6 hardtops, 0 Grandés, 8 SportsRoofs, 25 Mach 1's, 0 convertibles

- 20 C6 automatics: 3 hardtops, 1 Grandé, 3 SportsRoofs, 13 Mach 1's, 0 convertibles

J-code 429-4V CJ Ram Air V-8: 958 total

- 251 4-speeds: 7 hardtops, 1 Grandé, 9 SportsRoofs, 230 Mach 1's, 4 convertibles

- 707 C6 automatics: 14 hardtops, 20 Grandés, 5 SportsRoofs, 648 Mach 1's, 20 convertibles

J-code 429-4V SCJ* Ram Air V-8: 554 total

- 367 4-speeds: 6 hardtops, 1 Grandé, 29 SportsRoofs, 326 Mach 1's, 5 convertibles

- 187 C6 automatics: 1 hardtop, 3 Grandés, 13 SportsRoofs, 167 Mach 1's, 3 convertibles

* Denoted by a V-code 3.91:1 Traction-Lok or a Y-code 4.11:1 Detroit No-Spin rear axle

I hope that this information proves to be interesting to you.

Yours in old Ford iron,

Adrian
Awesome information! Not just interesting but VERY interesting!

 

Rozz

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Thanks for the info Adrian. Like mike says very interesting..

 

TxBoss23

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Thanks for posting this. Now I know mine is one of 326 429 SCJ 4 speed Mach 1s.

 

vamach1

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Thanks for posting this. Now I know mine is one of 326 429 SCJ 4 speed Mach 1s.
The numbers check out with Marti's book which is where I assume they came from.

 

ponypastor

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Thanks for the production numbers for the 429. As a follow up question, does anyone have any experience or knowledge about the difference in $ value between a matching numbers 429 SCJ and a non-matching number but entirely correct motor? Thanks.

 

Rozz

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For me, it would be the difference between an apple and a orange. But that's just me.

 
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Thanks for the production numbers for the 429. As a follow up question, does anyone have any experience or knowledge about the difference in $ value between a matching numbers 429 SCJ and a non-matching number but entirely correct motor? Thanks.

Just my opinion, so this is not written in stone. A "Numbers Matching" powertrain probably carries a lot of weight in the big name auctions like Barrett-Jackson, Mercum , or to a Purist who will only accept such a vehicle, to the point of not even wanting one that had a blown engine replaced with a factory "Service" block or engine assy . My circle of friends who bought these type of vehicles (Big block Chevelles/Camaros, Chargers/ Roadrunners, 428,429 CJ/SCJ Mustangs/Torino's) drove these cars as hard and wide open as they would run.

Any thought of collectability or what their car might be worth 20+ years later was not on the radar. Most of these cars had at least a 24/24 powertrain warranty so blowing one up was not a concern. So if I were in the market for a 429 CJ/SCJ 71 Mustang and it had a replacement engine, as long as it was of the same caliber as the production engine all would be fine. Those 429's were about as tough as they came.

 
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Joined
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1971 Boss 351 Mustang
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Thanks for the production numbers for the 429. As a follow up question, does anyone have any experience or knowledge about the difference in $ value between a matching numbers 429 SCJ and a non-matching number but entirely correct motor? Thanks.

Just my opinion, so this is not written in stone. A "Numbers Matching" powertrain probably carries a lot of weight in the big name auctions like Barrett-Jackson, Mercum , or to a Purist who will only accept such a vehicle, to the point of not even wanting one that had a blown engine replaced with a factory "Service" block or engine assy . My circle of friends who bought these type of vehicles (Big block Chevelles/Camaros, Chargers/ Roadrunners, 428,429 CJ/SCJ Mustangs/Torino's) drove these cars as hard and wide open as they would run.

Any thought of collectability or what their car might be worth 20+ years later was not on the radar. Most of these cars had at least a 24/24 powertrain warranty so blowing one up was not a concern. So if I were in the market for a 429 CJ/SCJ 71 Mustang and it had a replacement engine, as long as it was of the same caliber as the production engine all would be fine. Those 429's were about as tough as they came.
I believe most would prefer a numbers matching first but a service engine replacement if documented should not be that big a deal. However there is a 71 Mach 1 on eBay now that is being advertised as a 429 Mach 1 which it is, but it now is sporting a 71 Boss 351 engine in its place. They go on how rare the 429 cars are and all the options this particular car has but still its no longer a 429 car. Just a strange thing to do with a 429 car in my opinion.

I'm betting someone with a Boss 351 would really like to have that engine in their Boss 351!

 
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