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Old Aug 19, 2018 | 04:59 PM
  #1  
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Default New guy question

Numbers matching... all important for originality and ultimate value.
can someone please describe the easiest way to verify a car is "matching numbers"?
Thanks!
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Old Aug 19, 2018 | 05:08 PM
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No easy way. It depends on what you are looking at and how far down the line do you want it to match. Engine tranny rear ? Carborator alternator starter? Glass radio? Etc etc. then there are the date codes. Something could have the correct GM code but wrong date code. I am exhausted just thinking about it!!

So so grab some books heavily research the forum and educate yourself on what to look for. And the most important part is post anything you are considering buying on the forum for review by many eyes and expertise.

Oh oh by the way did we talk about restamps?????😂😂😂

Dont get discouraged. Not the purpose of my response. Just do a lot of homework if originality is important to you. And if we are talking big $$$$ then hire an expert after you have gone thru everything to verify it. Ike

Last edited by general ike; Aug 19, 2018 at 05:09 PM.
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Old Aug 19, 2018 | 05:58 PM
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Default Thanks

good stuff....
i think I am most concerned about engine, trans, dif.

I am shopoing for a driver river and while not critical, the correct numbers do ad value.

I’ll post what I am looking at next week

thanks again!
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Old Aug 19, 2018 | 09:51 PM
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There are a couple of books and a couple of web pages. This is one that I like.

https://www.corvsport.com/c3-corvett...rk-generation/

Good info in one spot. Ike
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Old Aug 20, 2018 | 12:14 AM
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Save your money. If you want a driver car, just buy a nice C3 in good condition (mechanically and physically), save some money, and forget about the "numbers" thing. Basically, it's nothing but a "can o' worms" that doesn't net you any return (pay the premium on the front side; get it back on the sale). There are lots of very nice C3's...many with modern upgrades...that will make the car more enjoyable and probably less expensive.
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Old Aug 20, 2018 | 06:37 PM
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Suggestion:
Step 1:. Join NCRS
Step 2. Have it judged.

There are MANY items that are numbered and dated. Really too many to list here. The judges will know and walk you through it all.

NCRS membership is inexpensive and qualifies you for numerous discounts and publications, plus you'll gain access to a huge Corvette braintrust.

Hope this helps
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Old Aug 21, 2018 | 08:18 AM
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LOTS of components have "numbers" on them. You can learn to decode them and verify them but for a driver you might not spend much time on that. Unless it is a particularly special car the numbers are just numbers at this point. If you were to check anything, you would check the engine block codes first if only to help you make maintenance and modification decisions later.
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Old Aug 21, 2018 | 08:24 AM
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Originally Posted by 7T1vette
Save your money. If you want a driver car, just buy a nice C3 in good condition (mechanically and physically), save some money, and forget about the "numbers" thing. Basically, it's nothing but a "can o' worms" that doesn't net you any return (pay the premium on the front side; get it back on the sale). There are lots of very nice C3's...many with modern upgrades...that will make the car more enjoyable and probably less expensive.


I was looking at a real survivor C3 and glad I didn't buy it. I'd be too squirrely about changing anything and would have heart failure with every rock chip. Got a nice driver instead and have loved working on it.
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Old Aug 21, 2018 | 08:39 AM
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If someone is selling you a car and claims it to be numbers matching then I would ask for documented proof. Typically you are seeking engine, and transmission, that match the VIN plate on the A-Pillar; and exterior and interior color that matches the plate on the drivers side door opening near the hinges. Unfortunately, all of that can be duplicated, restamped, and you can build a nearly perfect fake car now.

If you want a nice driver I would suggest you may replace the engine and transmission, maybe the differential, maybe add rack and pinion steering; maybe Vintage Air A/C; new seat belts; new seat covers; etc. The key, to me, is that you drive your car and enjoy it without worrying so much about "Value". The market is not great for most of our cars now, and there are a lot of them available for sale, so buy what you want to own and drive.

I put a 350HO GM Crate Engine; Tremec TKO 500 transmission; side pipes; and a newly built rear end in my 1977 and it ran well and was fun to drive. It was a driver, and I loved it. Whatever you do, have fun.

Good luck with your decision and best regards,

David Howard
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Old Aug 21, 2018 | 08:47 AM
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Originally Posted by AllVettes4Me
...If someone is selling you a car and claims it to be numbers matching then I would ask for documented proof...
Interesting. What would you accept as "documented proof"?

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Old Aug 21, 2018 | 08:59 AM
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Originally Posted by Easy Mike
Interesting. What would you accept as "documented proof"?
You are fishing Mike, but I get your point.. You know as well as I do that all documents can be forged, many have been. My documented proof is referring to documentation in the form of an approved inspector that has verified the presence of correct VIN and VIN derivatives in the locations matching the VIN of the car and Title. A-Pillar; engine pad; transmission; and frame all have the VIN or VIN derivative on them. If a build sheet is available, that helps a bunch as well. My point is that provenance, or documentation, showing the legacy and history of the car is something buyers should insist upon seeing before believing the car is truly numbers matching; and then it is no guarantee; but it sure helps.

Taking the word of the seller is not sufficient.

Share if you disagree Mike.

David Howard
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Old Aug 21, 2018 | 09:03 AM
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If your C3 budget is $15K or less, buy the nicest, rust-free car you can find, fix what you need to to be safe, drive it and enjoy it!

If your budget is more than $15K, follow the instructions above, and invest the balance.

A driver-grade C3 is not an investment, it is a toy. For $15K you can get the nicest vinyl bumper C3 in your area. It won't have been worth it to anyone to forge an engine stamp, and you won't be worried about paint chips or blowing up a smog motor. If you want a chrome bumper driver, great! I love seeing them being driven.

Last edited by Bikespace; Aug 21, 2018 at 09:30 AM.
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Old Aug 22, 2018 | 07:05 AM
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Originally Posted by AllVettes4Me
...You are fishing Mike...
Nope. Not fishing. Just curious as to what might constitute "documented proof".
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