Is there a post or thread somewhere that explains the significance of these codes? Maybe also giving some hints as to which are more and less valuable? Thanks.

 

I bet there is but I don't know of it. The k code was the 271 hp solid lifter car. The A code was the factory 289 with 4 barrel and 225 hp. I think C code was the 200 hp 2 barrel stang. U will get your answers here for sure. Most of these guys are very sharp. I have owned my A code since 1970. I am not up on too many of the others now as I have the old age problem of cant remember ????.
Dan

 

If you look in the faq section you should find the answers there. In 65-6 the base gt engine is an a code the upgrade was the k code no gt's came with the c code as far as I know. The j should be the replacement code in 68 when they were changed from 289's to 302's when you start getting into r,s,q and z and some others you are getting into big blocks and bosses at this point. Try googleing mustang engine codes there should be plenty of info on this.

 

try google it.
this was just a quick click away..
Model 65 66 67 68 69 70
170 V
200 T T T T T T
250 L L
260 (V8) F
289 2V C C C C
289 4V+ D
289 4V A A A
289 HiPerf K K K
302 2V F F
302 4V J
302 4V Boss G G
351 2V* H H
351 4V** M M
390 2V Y
390 4V S S S
427 4V W
428 4V P
428 4V CJ O O
428 4V SCJ R R
429 4V Boss Z Z

+ 64-1/2 -only-
* Cleveland -or- Windsor
**Cleveland -only-

ok, Sh#$, forgot this thing cant do spaces like that.. oh well you get the idea

 

Actually, 1967 was the only year you could get a GT with the C code 2V engine Why? Who knows. But it was a possible option and I have seen a couple '67 C code GT's.

 

I'll have three G codes and a Z code to go please............

 

Ok, so, as I understand it, if I have a '68 Coupe with an I-6 that would be a 'T code', correct?

I would imagine that a 'T code' wouldn't necessarily add any extra value, other than the fact that it's a Mustang, overall condition, etc., since I have never seen anybody play up a 'T code'.

Also, this brings up another question. I've seen some links here about rust-bucket body shells for sale that are played up as 'A code' or whatever, so I have to wonder... if the engine is no longer in the vehicle, why would it matter?

 

sometimes depending on the classic reference book it'll subtract value for a I-6[:@]

 

For restoration purposes, a car that was originally an A-code will be worth more once a proper 289 is dumped in it than a T code car will be, both because A codes are more rare and because a V8 conversion car is nearly useless from a show standpoint. However, it's more the high performance VIN codes that get the attention. I've seen a rusted shell of a 67 Shelby GT350 go for $15k, just because it can be restored to factory condition with enough time and money, and somebody will buy it once it's restored.

 

I think a v8 conversion car would do fine at a car show unless it is a show that is tailored to original unmoded cars. My father's car has won plenty of shows and it started life as t code fastback. Now it has a strong running 302. If your main goal is to win shows with a car I would recommend a nice shiny RED paint job. I have awesome looking cars get beat out by red crappers alot. I try to pay attention when at shows what may help a car win and this seams to be the trump card around here.