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Old May 29, 2014 | 09:01 PM
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Default Engine code help

Hey Guys,
I was looking for engine codes on my 76, I found 197000 on the left rear near the bell housing, H205 in the right side.
Is the H205 the date code (July 20, 1975)? If so, would a motor built in 75 go in a 76? Are there numbers stamped somewhere else that would be more helpful?
thanks!
- Jay
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Old May 30, 2014 | 07:47 AM
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197000 should be 3970010, it can be hard to read at times. It's the part number for the 350 block. There's about a zillion of them out there.
H205 is the date code for when the block was cast. Yes, a July 75 engine block cast date would be installed in a 76.

Look on the engine block just in front of the passenger side head, you should see a stamp pad with numbers in it. If it is the original engine you will see a set of numbers with the partial VIN of the car and the assembly date of the engine. Post a picture or let us know what you have.

It will look something like this,

Last edited by Revi; May 30, 2014 at 08:06 AM.
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Old May 30, 2014 | 08:02 AM
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Since the 76 model year corvettes came out halfway through 1975 that would make complete sense... they keep slowly moving the production year advertising earlier and earlier..... eventually you will be able to buy the a model year vehicle on the first day of the previous year making them a whole year off from what they really should be... stupid marketing.
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Old May 30, 2014 | 10:13 AM
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By the way, H205 is August 20th, 1975, not July.

Ed
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Old May 30, 2014 | 05:21 PM
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By the way, H205 is August 20th, 1975, not July.
I stand corrected.
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Old May 30, 2014 | 05:42 PM
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Wow, some of these letters are almost gone, probably full of paint.
Best I can tell its 16S401886, and VO321C... last 2 digits are gouged out.
I don't see any part of my VIN in either number.
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Old May 30, 2014 | 05:48 PM
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16S401886 is the partial VIN of the car it came out of. In this case it's a 1976 Corvette, assembled at the St Louis, MO plant, and the last 6 digits of the VIN are 401886. That's not the last 6 digits of your VIN?

V0321C.. is the suffix code for the engine.

V - Assembled at the Flint, MI plant
03 - March
21 - March 21st (1976)
C.. is the engine code

Too bad it's messed up. Can you post a high resolution picture of the stamp pad? Maybe we can make something out.

And man, this block sure sat around waiting to be built! Cast on August 20th, 1975 and not built until March 21st, 1976! 7 months later.

Ed

Last edited by restoman1; May 30, 2014 at 05:55 PM.
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Old May 30, 2014 | 05:59 PM
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my last six is 123191!
Hmmmm When I'm ready to sell I'll have to say "Numbers correct" instead of "Numbers Matching".
I almost wish I had not checked it now, it just makes me curious!
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Old May 30, 2014 | 06:54 PM
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Originally Posted by restoman1
16S401886 is the partial VIN of the car it came out of. In this case it's a 1976 Corvette, assembled at the St Louis, MO plant, and the last 6 digits of the VIN are 401886. That's not the last 6 digits of your VIN?

V0321C.. is the suffix code for the engine.

V - Assembled at the Flint, MI plant
03 - March
21 - March 21st (1976)
C.. is the engine code

Too bad it's messed up. Can you post a high resolution picture of the stamp pad? Maybe we can make something out.

And man, this block sure sat around waiting to be built! Cast on August 20th, 1975 and not built until March 21st, 1976! 7 months later.

Ed
Probably the V0321Cxx is actually V0821Cxx which would be a 1 day delay between casting and assembly. Not rare.

Car serial number 01866 was born around Sept. 2 1975 which also makes sense.

Originally Posted by psycho dad
my last six is 123191!
Hmmmm When I'm ready to sell I'll have to say "Numbers correct" instead of "Numbers Matching".
I almost wish I had not checked it now, it just makes me curious!
That's not a valid VIN for a '76. Is it a state issued VIN? As restoman said- post a pic of the pad after the dirt grease and paint has been gently removed.

Please don't even joke about using the phrase 'numbers correct'. 'Numbers matching' is bad enough.
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Old May 30, 2014 | 07:45 PM
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just kidding about the numbers matching thing, i think everyone is familiar with the way engines are misrepresented.
Just got out the state issued title, last six is actually 423191.
this is the best I can do as far as a photo.
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Old May 30, 2014 | 10:39 PM
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If you can take some paint remover to the pad, we might be able to make it out. DON'T use sandpaper though.

Ed
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Old May 30, 2014 | 10:41 PM
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I'll try that tomorrow. thanks
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Old May 30, 2014 | 10:56 PM
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Old May 31, 2014 | 07:48 AM
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Originally Posted by Mike Ward
...Probably the V0321Cxx is actually V0821Cxx...
August 75, not March 76.

...Car serial number 01866 was born around Sept. 2 1975 which also makes sense...
Yep. Makes the August 21 date look good.

Original VIN was 1Z37*6S4001886. *L for the L-48; X for the L-82.


Last edited by Easy Mike; May 31, 2014 at 07:55 AM.
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Old May 31, 2014 | 09:55 AM
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Looks like last three is CKX.
Small number is 16S401886, NOT my VIN.

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Old May 31, 2014 | 10:18 AM
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Originally Posted by psycho dad
Looks like last three is CKX.
Small number is 16S401886, NOT my VIN.
That makes it an L48 with automatic, 49 state emissions. Since your car now has a state issued VIN, this is an unusual case of a car having it's 'factory original born-with engine' but is not 'numbers matching'.

Where's that guy that was making a big fuss recently that there's nothing wrong with the 'numbers matching' phrase.
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Old May 31, 2014 | 02:16 PM
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now I'm confused
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Old May 31, 2014 | 02:32 PM
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Originally Posted by psycho dad
now I'm confused
You said that your car has a state-issued VIN that ends in 423191. Most states do not re-use (or know) the original OEM VIN when they issue their own. Your car appears to have had the original VIN of 1Z37L6S401886.

Any idea why there's a state issued VIN on the car? Theft? Salvage?
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Old May 31, 2014 | 02:51 PM
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That's the number on the A-pillar. I didn't mean the state (VA) issued a new VIN, though that is possible I guess. I was thinking someone swapped the engine at some point, although finding THAT motor with a similar build date would be unlikely (and not very desirable).
The guy I bought it from had it painted and some other repairs done, but never had it titled in his name, which I thought seemed a little odd at the time.
Isn't 1Z37L6S423191 a valid VIN from 76?
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Old May 31, 2014 | 04:52 PM
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I get it now, the confusion was on my part. The car VIN is correct for a '76 so for reasons unknown, someone swapped in the engine from '76 car 401866.

Here's a link I found to an eBay auction for your car where the seller says that 'all the numbers match as far as he knows'

http://media.collectorcarpricetracke...0473283166.pdf
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