Vin and options





You can also order the delivery information - which will tell you where the car was delivered. (if you join NCRS)
The trans should have the last part of the VIN stamped on it. My 71- 4 speed did.
You can check most parts by the build date - usually within 2 to 5 weeks ahead of the cars build date.
If the motor is original the engine pad stamping will tell you the HP and trans type. The rear has a date code and ratio stamp.
Most Corvette parts have a date of manufacture and a serial #. The NCRS books will give you the info. You have to do some detective work to figure it out. Unless you have the build sheet or dealers sheets / window sticker - there is no definitive answer to the cars build.
If the parts #'s / dates match it's justification to assume it came on the car. (for me)
Hope this helps...
Last edited by BLUE1972; Nov 28, 2017 at 09:52 PM.
[QUOTE=BLUE1972;1596065362]I would suggest getting a NCRS book for your car.
You can also order the delivery information - which will tell you where the car was delivered. (if you join NCRS)
The trans should have the last part of the VIN stamped on it. My 71- 4 speed did.
You can check most parts by the build date - usually within 2 to 5 weeks ahead of the cars build date.
If the motor is original the engine pad stamping will tell you the HP and trans type. The rear has a date code and ratio stamp.
Most Corvette parts have a date of manufacture and a serial #. The NCRS books will give you the info. You have to do some detective work to figure it out. Unless you have the build sheet or dealers sheets / window sticker - there is no definitive answer to the cars build.
If the parts #'s / dates match it's justification to assume it came on the car. (for me)
Hope this helps...[/QUOTE]
Your original transmission would have a partial vin stamped into it. But if its not your original trans then once again, no way to know for sure.
There are no records available for your year car anywhere. GM claims they do not have them.
The transmission is stamped on the side of the main case's flange.
There are typically 2 stamps.
The first was done when the transmission was assembled and will indicate when it was built and in what configuration.
The second was done at the assembly plant, ( St.Louis for Corvettes), and indicates what vehicle the transmission was first installed in.
Regards,
Alan
I think there are some signs in the engine compartment and in the interior that are pretty good indicators if the car was originally equipped with the a/c option when it left St.Louis.
The stamps on the side of the transmission case.
Last edited by Alan 71; Nov 29, 2017 at 06:21 AM.
The Best of Corvette for Corvette Enthusiasts

Dash vents, center dash pod, holes &/or clips for hoses on the fender wells & radiator support, condenser, etc. etc.
It is rare that AC would be removed, and every single component would be eliminated & holes patched.
A few pics of the interior and engine bay will help in identifying what you have.
The lower vent on the driver side is blocked off , as is the Astro Ventilation in the rear on A/C cars. As stated above - Center vents and lack if the vent controls (slide handles) on the console also indicate A/C.
The rear yokes and universal caps can give info on the motor if thy are original.
The list goes on. You have to do some research and use the NCRS and Restoration guides - you can figure it out.
Power steering and brakes won't affect much - order parts as it is currently equipped. The shape of the hole for the power brake booster on the firewall can give clues to the original setup.
Take your time, read - use the books available, make a written list of what you find and you will figure it out.
I did my 71 when I got it. It was a running / driving basket case. I got the options 98%. I figured if it had power everything it had power steering - nope. A/C, Leather, PB, PW, Tinted Glass, ETC.
The original owner called and had the window sticker. I had everything correct but I added PS to the list. Well my list is correct now - I added PS.
My car has a fiberglass piece protecting some plumbing that goes through there from the AC.
It makes it extremely difficult to reach the top bolt that mounts the radiator support on that side. Trust me

















