C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Numbers location & retrieval

Thread Tools
 
Search this Thread
 
Old Sep 7, 2011 | 09:26 AM
  #1  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default Numbers location & retrieval

I may be looking at what's "supposed" to be a number matching 70 this weekend. Personally I don't care about numbers much but the overall car and deal look attractive so I might as well go verify the sellers #s claim.

I have seen where the numbers are on the block and this site explains it pretty well:
http://web.archive.org/web/200805070...m/location.htm

...but have never looked at the transmission, carb, alternator, etc.

Can someone point me in the right direction as to where to look for the numbers on parts other than the block? Front/back/left/right/etc. (links or pictures would be cool too)


Also, I was told by the seller that you are unable to see the last few digits on the block since it was painted....are there any quick and clever ways to make those numbers appear more? Rub a wire sponge over it? Rub it with sand paper? Pour some acid over it

Thanks
Reply
Old Sep 7, 2011 | 10:03 AM
  #2  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

To clean the block pad, use some lacquer thinner. It will take some rubbing but the paint will come off. Never use any abrasives on a pad as it will be destroyed. I verified all of my component numbers during the build but don't remember exactly where most of them are - just do a google search and you should find the information. I do remember that the trans has the VIN stamped vertically (perpendicular to the ground) on the main casing on the passenger side (I think). I would definitely get that paint off of the pad. Good luck
Reply
Old Sep 7, 2011 | 10:10 AM
  #3  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Default

Originally Posted by rafalc
...Personally I don't care about numbers much but the overall car and deal look attractive so I might as well go verify the sellers #s claim...
Why? If it's the car and the deal you're after and if you don't care about the numbers, wait until you get the car home to look for them.


Last edited by Easy Mike; Sep 7, 2011 at 10:13 AM.
Reply
Old Sep 7, 2011 | 10:12 AM
  #4  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default

Originally Posted by Easy Mike
Why? If it's the car and the deal you're after and if you don't care about the numbers, wait until you get the car home to look for them.

Because if the numbers claim does not check out, I would then try to knock down the price some more based on these findings
Reply
Old Sep 7, 2011 | 10:13 AM
  #5  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

Also, the only parts that have the VIN stamped in them are the block and trans. The block and trans also have part numbers on them with casting dates. Numbers matching means that the VIN on these matches the car VIN tag, the part numbers are correct for the car, and casting dates are within a few months prior to the car build date.

The remaining parts (mostly) have part numbers and casting dates. Numbers matching for these parts means that the part numbers are correct and that the casting dates are within a few months of the build date of the car.

There are alot of old posts on this topic and I'm sure that others will chime in. I hope that this helps. It sounds very complicated but its really simple if you have the right resources - pick up a copy of "chevy by the numbers."
Reply
Old Sep 7, 2011 | 10:15 AM
  #6  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

Originally Posted by rafalc
Because if the numbers claim does not check out, I would then try to knock down the price some more based on these findings
Good strategy. I would also post pics and information on this site for opinions on the price. You get lots of varying opinions and would be a very informed buyer at that point. This is fun stuff
Reply
Old Sep 7, 2011 | 10:19 AM
  #7  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

http://www.amazon.com/Chevrolet-Numb.../dp/0837609569

This also shows you location of the part numbers. Its a very good resource.
Reply
Old Sep 7, 2011 | 10:34 AM
  #8  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default

Originally Posted by DJordan442
http://www.amazon.com/Chevrolet-Numb.../dp/0837609569

This also shows you location of the part numbers. Its a very good resource.
Thanks for the link. Not quite sure if the book would get to me in time. I'm taking a 4hr drive to see this car and do not plan on making the drive again....I either pick it up or not. I'll do more searching on the net for resources.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Sep 7, 2011 | 10:44 AM
  #9  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

I just noticed that your looking at a 70 so the book wont help anyway. Are you looking at a 350 car? If so, I wouldn't worry much about the originality of anything except the block, trans and rear. The remaining parts are plentiful and easy to find so wouldn't reduce value much IMO.
Reply
Old Sep 7, 2011 | 10:47 AM
  #10  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default

Originally Posted by DJordan442
I just noticed that your looking at a 70 so the book wont help anyway. Are you looking at a 350 car? If so, I wouldn't worry much about the originality of anything except the block, trans and rear. The remaining parts are plentiful and easy to find so wouldn't reduce value much IMO.
Yes, its a 350 car. I was planning to concentrate on the block and trans as well....but might as well see if I can find the other part numbers as well (just to knock the price even lower)

Thanks for the info
Reply
Old Sep 7, 2011 | 10:51 AM
  #11  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Default

Originally Posted by rafalc
...I'm taking a 4hr drive to see this car...I either pick it up or not...
Got a friend who knows what he/she would be looking at? If so, take them with you.

Good luck.

Reply
Old Sep 7, 2011 | 11:02 AM
  #12  
gq82's Avatar
gq82
Safety Car
20 Year Member
 
Joined: Sep 1999
Posts: 4,930
Likes: 11
From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

Originally Posted by Easy Mike
Got a friend who knows what he/she would be looking at? If so, take them with you.

Good luck.



Knowing where to look for numbers is one thing, knowing how to decipher them is another.....if you can't have someone go with you get yourself an NCRS Judging Guide for your year....it explains where the numbers are and what they mean. www.ncrs.org

Otherwise just offer the owner what your prepared to pay for the car.
Reply
Old Sep 7, 2011 | 11:07 AM
  #13  
joewill's Avatar
joewill
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2007
Posts: 4,458
Likes: 331
From: Indy Indiana
Default

if the vin derivitive on the tranny and block do not match the title and VIN tag, and the owner claims they do, then you either have a seller that is pretty ignorant, or he is evil. just feel him out with a good personal interview.

missing number under the paint? we have heard that one before... if he is truly trying to sell the car then a potential buyer would have asked him to clean it off and verify for them.. surprised that has not happened yet and makes my spider sense tingle. it would not be unreasonable to ask him to clean the pad off and send you a photo prior to your long trip.

all in all, it is just part of the numbers game.

condition and rust are more important here and supercede the numbers ( since you don't care ). especially on a small block. Since you really are not a numbers person, then all you really need to do is make sure that the car is priced according to its claims.
Reply
Old Sep 7, 2011 | 11:10 AM
  #14  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default

Finding the numbers and figuring out what they mean is not that difficult guys...I am kind of new to these cars but not incompetent

As long as I know where to look and have a write up of how to decipher them, its a piece of cake

I guess someone more experienced would be helpful with other things....parts that do not have any identification on them... telling a difference between an original seat rail vs a replacement from another year.... and such
Reply
Old Sep 7, 2011 | 11:43 AM
  #15  
DJordan442's Avatar
DJordan442
Pro
 
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Default

Some parts are really hard to get numbers off of with them bolted to the car - exhaust manifolds, heads, and distributor come to mind. For the heads, you need to take off the valve covers. Take a little mirror with you and put it on a stick with chewing gum to see hard places Seriously, a mirror can help in hard to reach places. Pressure to make a decision on the spot like this is the worst way to buy a car. Unless there are loads of people beating down his door, go home and think about a reasonable offer. That will give you time to digest the numbers. Worst case is you lose $100 worth of gas and an afternoon. My 0.02 Keep us in the loop on your journey.
Reply
Old Sep 7, 2011 | 12:03 PM
  #16  
rafalc's Avatar
rafalc
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Default

Yea....I don't plan on going crazy and checking the header numbers.... I'll just go for the block, tranny, maybe rear and carb....the stuff easy to get to.

The overall deal looks good to me whether number matching or not (speaking from what Ive seen over the past few months)... 350 4 speed, paint a couple years old-looks great, interior in great shape, frame on restoration (frame detailed and painted), engine bay detailed and painted. Of course a description and pictures can only tell so much, so I'll definitelly see what it looks like in person. Asking 16k and claiming numbers matching. Seller states that he can't go much lower than asking price...but we'll see. The only things mentioned as non-working or non-original are the wheels, the switch to close the wiper doors needs to be replaced and the carb needs some tuning (it idles rough at low speeds/stops)

From what I've seen....for 16k there are 350 cars that look waaaaay worse than this one. Then again, I missed out on having a 69 BB for $17,700 and another for $18.

I'll try to post some pics of the car soon.

I guess I'll see in a few days as anything can happen. I'll let you guys know how I make out.
Reply
Old Sep 7, 2011 | 12:05 PM
  #17  
BBCorv70's Avatar
BBCorv70
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
Default

Originally Posted by joewill
if the vin derivitive on the tranny and block do not match the title and VIN tag, and the owner claims they do, then you either have a seller that is pretty ignorant, or he is evil. just feel him out with a good personal interview.
If the seller seems to be deceptive I'd pass. No telling what else he's hiding.

Originally Posted by joewill
condition and rust are more important here and supercede the numbers ( since you don't care ). especially on a small block. Since you really are not a numbers person, then all you really need to do is make sure that the car is priced according to its claims.
I'd say condition and rust should be #1 concerns followed by numbers if that's an important attribute to the buyer. Six million dollar question I've asked from time to time but rarely get an answer to is should it not be matching numbers, how much would you expect the price to be lowered? Whats the delta? How do we estimate a fair deduction?
Reply

Get notified of new replies

To Numbers location & retrieval

Old Sep 7, 2011 | 12:14 PM
  #18  
Mike Ward's Avatar
Mike Ward
Race Director
10 Year Member
 
Joined: Jul 2001
Posts: 15,892
Likes: 42
Default

You might want to ask the seller exactly what he means by 'matching numbers', there's some pretty creative definitions out there.
Reply
Old Sep 7, 2011 | 05:20 PM
  #19  
vettebuyer6369's Avatar
vettebuyer6369
Administrator
25 Year Member
Community Builder
Loved
Community Favorite
 
Joined: Jul 2000
Posts: 53,980
Likes: 6,207
From: About 1100 miles from where I call home.
Default

Originally Posted by rafalc
Because if the numbers claim does not check out, I would then try to knock down the price some more based on these findings
Good answer. Good for you.

Exactly the thought process a buyer should have,even if he doesn't care about numbers.

PS: A "Broach Buster" is a dynamite tool for easily checking numbers and fine detail.
Reply
Old Sep 7, 2011 | 05:24 PM
  #20  
srs244's Avatar
srs244
Safety Car
Supporting Lifetime
Veteran: Army
St. Jude 15 Year Donor
Active Streak: 120 Days
Loved
 
Joined: Sep 2005
Posts: 4,058
Likes: 99
From: Southeast, Tennessee
St. Jude Donor '09 thru '26
Default

Originally Posted by DJordan442
Also, the only parts that have the VIN stamped in them are the block and trans. The block and trans also have part numbers on them with casting dates. Numbers matching means that the VIN on these matches the car VIN tag, the part numbers are correct for the car, and casting dates are within a few months prior to the car build date.

The remaining parts (mostly) have part numbers and casting dates. Numbers matching for these parts means that the part numbers are correct and that the casting dates are within a few months of the build date of the car.

There are alot of old posts on this topic and I'm sure that others will chime in. I hope that this helps. It sounds very complicated but its really simple if you have the right resources - pick up a copy of "chevy by the numbers."
only the motor and trans can be verified as being from that exact car (unless the VIN tag was changed also which is a federal offense). all the other on a "numbers matching" car are date correct parts based on the car's build date.
Reply



All times are GMT -4. The time now is 10:48 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE