1971 Q code

[Don65Stang]

Thanks guys for all the info on the car. I am super excited to get it!!

I think you just found your new avatar.

Let me know if you want to change your user name to MG42 - 71Qcode, MG42 - 1F05Q or some variant.

 

[trillizo_y_uno]

Man, is that a time capsule, or what? That is truly a sight to behold. More pics!!!

Don brings up an interesting point, the 3.50 ratio must have been mandatory on the 71 Q Code, which might explain why it's not the standard 3.25 with AC. Very interesting Marti report right there.

FYI, my 71 M Code also has the tapped holes for a rev limiter. I don't think that's much of an issue or a big deal.

 

[Don65Stang]

I also noticed that it was actually built on 7/29/71 which make it among the last of the 71s that were produced.

Ed, see if the engine tag is still present.

 

[Mikes73]

Beautiful car, love the green ones!

 

[PADave]

That air cleaner decal was used on 69 Shelby 428. Maybe added? Interesting.

 

[Boss1Ray]

Some things are not adding up...

From the 1971 Mustang Facts Book on our WIKI

April 71 Q code available for 1971 model





Ray

 

[MG42]

I will check to see if the engine tag is still present.

The pics he sent me of the care are really bad. It will be here Thursday morning so I can take some good ones.

Dave I wonder what was on the air cleaner from the factory and has anyone seen an original to say for sure.

It was a cobra jet engine with ram air.

Ed

 

[Paul of MO]

Man, is that a time capsule, or what? That is truly a sight to behold. More pics!!!

Don brings up an interesting point, the 3.50 ratio must have been mandatory on the 71 Q Code, which might explain why it's not the standard 3.25 with AC. Very interesting Marti report right there.

FYI, my 71 M Code also has the tapped holes for a rev limiter. I don't think that's much of an issue or a big deal.

My Dec 1970 built M code - ram air - c6 - 3.25 locking rear convertible has holes for the rev limiter also. I wondered about this but agree it is probably not a big deal.

- Paul

 

[72MustangSprint]

Sweet car, was sold out of Florida. Did you get it from there?

 

[MG42]

No I think im the third owner.

I don't know if it helps you guys or not but I have the original build sheet on the car.

She is on her way.

 

[Don65Stang]

Cool. Congrats! Post the build sheet in the Marti reports section or post it in both this thread and the Marti section

The Marti forum is a nice centralized place for this type documentation.

 

[71_resurrection]

Wow, this car will either be a complete mystery to all of us, or an excellent find! Either way, its gonna be an awesome car! Congrats on the purchase and I look forward to seeing more pictures!

 

[Adrian Clements]

Folks,

This looks like another case where the Car Facts binder and actual Ford assembly plant practices disagree.

Of the 79 Mustang Mach 1's with Q-code 351CJ Ram Air engines built during the 1971 model year, ALL of them had a 3.50:1 rear axle ratio. 52 of these 79 had the A-code rear axle (indicating a 3.50:1 non-locking unit), and 27 of the 79 had the S-code rear axle (indicating a 3.50:1 locking unit). The presence (or absence) of factory air conditioning made no difference, nor did the transmission type (4-speed manual or C6 3-speed automatic). Here are the build numbers broken down:

1971 Mustang Mach 1's with Q-code 351CJ Ram Air engine: 79

1. Toploader Wide Ratio 4-Speed Manual Transmission (TRNS 5): 29

a) 3.50:1 non-locking (AXLE A): 17

- non-A/C: 9

- A/C: 8

b) 3.50:1 locking (AXLE S): 12

- non-A/C: 11

- A/C: 1

2. C6 SelectShift 3-Speed Automatic Transmission (TRNS U): 50

a) 3.50:1 non-locking (AXLE A): 35

- non-A/C: 14

- A/C: 21

b) 3.50:1 locking (AXLE S): 15

- non-A/C: 10

- A/C: 5

MG42, I believe that your new car has the following VIN and production data:

VIN 1F05Q227226, DATE 07/71, BODY 63R, COL C, TRIM 5R, TRNS 5, AXLE A, DSO 24

I hope that this information proves to be interesting to the group.

Yours in old Ford iron,

Adrian

 

[Boss1Ray]

Big Thanks Adrian!

Ray

 

[c9zx]

Adrian great post! Thanks for taking the time. Chuck

 

[MG42]

Yes Adrian thank you for the information and time on the new car as I would like to know as much as I can about it.

Is it true that the 71 Q coded cobra jet engine came with functional ram air as well?

Ed

 

[Boss1Ray]

Yes Adrian thank you for the information and time on the new car as I would like to know as much as I can about it.

Is it true that the 71 Q coded cobra jet engine came with functional ram air as well?

Ed

From what I have learned through Adrian - ALL of the 1971 Mach 1 Q code cars had functional ram air. Ford had planned for all of the Q codes to have it but because of the 'emissions certification problem' the 4V motors were not allowed to have functional ram air after early 1972 model production. Some earlier 1972 Q code cars did have it. I believe the changeover date to be somewhere around Jan 1972. (not positive)

Ray

 

[MG42]

Thanks for the info Ray.

 

[Go Time]

welcome from Indiana

 

[MG42]

Hello all its been a wile since I have posted here. I got my elite Marti report on my car and it states out of the 29 4speed 1971 Q codes. Mine was the only green one made.

Ed