How do i Identify of a real GTO 64 or 65 since there is a 37 on firewall tag.

Asked by Sep 08, 2015 at 06:12 PM about the 1965 Pontiac GTO

Question type: General

I'm actively pursuing the purchase of a 1965 GTO I'm look for what
delineates a REAL GTO. I know that the cowl tag has to have a 42 vs at 37
(which is a LeMans) but it seems to me that 64-65 all seem to have 37 and
the 42 doesn't seem to appear until 66 and later. How can I tell if a 64 or 65
is a "real" GTO? Is there something on the Bill of sale or on the car that will
satisfy  the identification. What are the qualifier(s) that will ID the car as a

17 Answers

The 1964 GTO had headlights side-by-side horizontal and a very definitive GTO on the grille

3 people found this helpful.

A 1964 will have a 389 with 3 - two bbl carbs

2 people found this helpful.

1964 Le Mans. Only has 'Pontiac' on the grille. As for paperwork, it's been like 45 years.. so that I can't help with but I had a '64 GTO

1 people found this helpful.

But the next year, they put the headlights vertical.. a '65

2 people found this helpful.

Not sure we are answering his question. Sounds like, by body style, he has a 65 but does not know if it was made as a GTO or another model (lemans, tempest, etc) and cloned later in its life to appear to be a true factory GTO. Anyone know of a key in the VIN that would tell him what is came off the production line as?

9 people found this helpful.

Good point taver91. Just doing the best I could. But really - if the grille is gone, which is understandable on a 50 year old car- man idk

1 people found this helpful.

Contact Allied Vaughn will your vehicle identification number. For $50. you can get a copy of your specific car's factory to dealer invoice. That'll show you exactly what you have. Google "gm media archives" to find Allied Vaughn. HTH. -Jim

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Jim. My man. Thanks, on behalf of the OP

1 people found this helpful.

A 1964 "Tempest G.T.O." as outlined in The Encyclopedia of American Cars 1940 thru 1970 shows the following model numbers: 2227 Sport Coupe, 2237 Hardtop Coupe, and 2267 Convertible Coupe. For 1965 five digit model numbers are used: 23727 GTO Sport Coupe, 23737 GTO Hardtop Coupe, and 23767 GTO Convertible Coupe. Also, in 1965 the GTO was "absorbed' into the Tempest LeMans line. Model number prefix 237. Then the last two digits defined the specific body style and GTO or non-GTO. If Pontiac was doing their vehicle identification numbers, in 1965, like they were in 1970. Those five model number digits will be the first five characters of the vehicle identification number. Then a "5" to designate a 1965 model, then a letter, which was the assembly plant, then finally the last six digits are the sequential unit number of the car. For example my '70 Catalina vehicle identification number decodes as follows 25236OE------. 252=Catalina, 36=six passenger station wagon, 0=1970, E=Linden, NJ Assembly Plant, the last six numbers were the unit number of my car. HTH. -Jim

3 people found this helpful.

You're welcome, Fordnut. I was still typing when you posted, lol. Anytime. -Jim


Hey Jim, In reading your comments above I have a question. here is my manifest which says model 237....shouldn't this say 2237 for a 64 GTO?? seems to almost say that its an absorbed 65 tempest lemans..but its a 64 manifest. what are your thoughts? thanks alot

3 people found this helpful.

Not sure how well this photo is going to reproduce but it's from my Encyclopedia of American Cars 1940 thru 1970. It appears to me that the first 2 in 2237 simply designated Pontiac Division of GM. Then the model number of 237 indicates a LeMans or GTO hardtop coupe body style. The GTO was essentially an option package for the LeMans. Both were the same body "shell" so they both have the same model number of 237, in your case. Other option codes are what changed it to the GTO status. HTH. -Jim

2 people found this helpful.

thanks a lot Jim....Travis

1 people found this helpful.

You're welcome, Travis. Glad to help. -Jim

65 GTO will have an "N" on category 5 on cowl plate on fire wall.. depicted as 5N


1964-65 the GTO was an option on the Tempest LeMans. 1966-71 it was its own model with 242 VIN. 1972-74 it was an option again. Contact PHS Online with the VIN and get their report. It is the gold standard as anyone in POCI or GTOAA will tell you. Please ignore suggestions about getting one from any other vendor. Any real buyer will insist on PHS docs and will dismiss anything else.

1 people found this helpful.

fordnut...64 came with a 325hp 389....the optional 348hp 389 was extra $$...tri-power as I was called was available until 66...67 came only with 4bbl qudra-jet....64 and 65 was part of tempest/lemans...66 was a separate name.

1 people found this helpful.

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