Vette Registry | '13' Digit VIN Decoder - Forums

Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

If you're trying to "decode" the VIN on your '75, just click on the "Research" button at the top of the pages....then scroll down to "Automatic Corvette VIN Decoder".

Welcome to C3VR, too!!

Joel Adams
C3VR Lifetime Member #56
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

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"13" Digit VIN Decoder

Posted: 6/27/10 3:10pmMessage 3 of 11

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75 Orange Flame

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Ballston Spa, NY - USA

Joined: 6/27/2010

Posts: 7

Vette(s): 1975 L82

Noooooooooooooooooooo!

I am not trying to decode my Vette.

I am looking for the formula!

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"13" Digit VIN Decoder

Posted: 6/27/10 6:01pmMessage 4 of 11

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Adams' Apple

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Duncanville, TX - USA

Joined: 11/8/2003

Posts: 22715

Not sure I'm understanding the term "formula", but I'll try...and since this is a '68 - '82 Corvette site, I'll do that.

For '68-'71

1 = Chevy Motor Division

9 = Corvette

4 = V8 engine

67/37 = Convertible/Coupe

6th digit = last number of year model

S = St. Louis

XXXXXX =sequential build/serial number(including a "check" digit as the first character)

For '72 - '80

1Z = Chev Corvette

67/37 = Convertible/Coupe(87 beginning in 1978 for coupes)

5th digit = Engine type(LT1, L82, etc)

6th digit = last number of model year(except 1980, which used the letter "A")

S = St. Louis

XXXXXX = Build number(including a "check" digit as the first character)

Is this what you are looking for? If not, please be a little more specific as to what info it is your are trying to ascertain.

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"13" Digit VIN Decoder

Posted: 6/28/10 5:05amMessage 5 of 11

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75 Orange Flame

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Ballston Spa, NY - USA

Joined: 6/27/2010

Posts: 7

Vette(s): 1975 L82

OK, the 17 VIN decoder has character Weights and a Transliteration Key...

VIN ----- 1 M 8 G D M 9 A _ K P 0 4 2 7 8 8

Transliteration key: values for VIN Decoding
A:1 B:2 C:3 D:4 E:5 F:6 G:7 H:8 J:1 K:2 L:3 M:4
N:5 P:7 R:9 S:2 T:3 U:4 V:5 W:6 X:7 Y:8 Z:9

Value -- 1 4 8 7 4 4 9 1 _ 2 7 0 4 2 7 8 8

Weight --- 8 7 6 5 4 3 2 10 _ 9 8 7 6 5 4 3 2

Products 8 28 48 35 16 12 18 10 (CKD) 18 56 0 24 10 28 24 16

What is the "Weights" and "Transliteration Key" formula for the 13 Digit VINs?

Any one know?

Thnx, Oz

75 Orange Flame2010-06-28 05:13:26

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"13" Digit VIN Decoder

Posted: 6/28/10 11:21amMessage 6 of 11

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Adams' Apple

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Duncanville, TX - USA

Joined: 11/8/2003

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Yer goin WAAAAAAY over my head here!

What possible purpose does this information suit? Is it more a mathematical deal, or does it actually translate into something on the vehicle? I'm soooooo confused! Wacko

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"13" Digit VIN Decoder

Posted: 6/28/10 12:08pmMessage 7 of 11

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Adam Wartell

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Eagleville, PA - USA

Joined: 11/1/2001

Posts: 27324

Vette(s): Used to own a 1979 Corvette now owned by JB79

If you are just trying to find an algorithm to determine if a 13-digit vin is VALID like a 17-digit vin has, you won't find one. They didn't start doing that until the 17-digit one came into use.

-Adam Wartell
NCM Lifetime Member #1222
Founder: Vette Registry

My first Vette, now owned by JB79: