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68 coupe engine identification

Old Jun 21, 2015 | 05:25 PM
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Default 68 coupe engine identification

Hello,

I have a 68 coupe with VIN 1943785415117 wich I think is an early ´68.
Car has 6.300 redline tachometer, I was told it´s a 427 car.
The engine numbers are K12 20 TJB at the front of the pass side head and 3970010 at the rear.

What do you think? I don´t know what engine is.

Thank you in advance!
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Old Jun 21, 2015 | 10:49 PM
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Originally Posted by thunderclap
Hello,

I have a 68 coupe with VIN 1943785415117 wich I think is an early ´68.
Car has 6.300 redline tachometer, I was told it´s a 427 car.
The engine numbers are K12 20 TJB at the front of the pass side head and 3970010 at the rear.

What do you think? I don´t know what engine is.

Thank you in advance!
According to your vin, your 68 was built in early April of 68 and the 3970010 casting number indicates a 69 or later 350.
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Old Jun 22, 2015 | 09:31 AM
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K12 20 TJB

K = McKinnon Assembly Plant
12 20 = Dec. 20th (There should be a date code cast on the rear of the engine to give you the year it was built.)
TJB = The "T" indicates Truck. A "C" would indicate passenger car. Could be either a 1973 350/160hp 4bbl conventinal cab truck or 1979 350/165hp 4bbl forward cab truck.

Last edited by Revi; Jun 22, 2015 at 09:40 AM.
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Old Jun 23, 2015 | 12:27 PM
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Originally Posted by thunderclap
...I have a 68 coupe with VIN 1943785415117 wich I think is an early ´68...
Early April, anyway. Last built March car was #15000, so your car might be an April Fool's Day car. Yours is the 15117th 68 assembled. What is your time build date on the trim tag?

My 68 is #16660 coming along behind yours on 4/20/68.

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Old Jun 28, 2015 | 03:55 PM
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Thank you for all the inputs.
I will check my trim tag.
To be honest, I am a little disapointed with the engine...I am pretty sure it was a 427 car, and finding out a truck engine in it...
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Old Oct 13, 2015 | 04:34 PM
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Hello,
I recently bought the corvette fellow thunderclap with VIN 194378S415117, I'm doing a complete restoration, I want to remove the bodywork, paint the chassis, engine change (the current is 350) and restore all its parts with original components, the problem is that which is not his motor home, 327? or 427?

I have some hints that the car is a 427;
- The hood is the 427 model, (but may have changed)
- The fan has the engine is very separate from the radiator, this tells me that previously had a longer engine
- The reboluciones account has the red line at 6500 RPM
- No return petrol tank (this may have been removed)

I searched the printed order over the fuel tank, but this is not

I found a web (NCRS) that can investigate where the vehicle was purchased, it costs $ 40

For me it is a very special car and I do not spend my money on a 427 engine, but I worry about than your motor home

As I can know 100% if it's 427 or 327?

Sorry for my English translator

Thank you
PedroJ

Last edited by Pedroj68; Oct 18, 2015 at 12:49 PM.
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Old Oct 13, 2015 | 09:29 PM
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Originally Posted by Pedroj68
Hello,
I recently bought the corvette fellow thunderclap with VIN 1943785415117, I'm doing a complete restoration, I want to remove the bodywork, paint the chassis, engine change (the current is 350) and restore all its parts with original components, the problem is that which is not his motor home, 327? or 427?

I have some hints that the car is a 427;
- The hood is the 427 model, (but may have changed)
- The fan has the engine is very separate from the radiator, this tells me that previously had a longer engine
- The reboluciones account has the red line at 6500 RPM
- No return petrol tank (this may have been removed)

I searched the printed order over the fuel tank, but this is not

I found a web (NCRS) that can investigate where the vehicle was purchased, it costs $ 40

For me it is a very special car and I do not spend my money on a 427 engine, but I worry about than your motor home


As I can know 100% if it's 427 or 327?

Sorry for my English translator

Thank you
PedroJ


Hello Pedro,

I have just sent a message.
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Old Oct 13, 2015 | 11:28 PM
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Surprised nobody mentioned this: The vin, VIN 1943785415117

That number "5" in the middle is actually the letter "S". A common mistake, but if it shows up on your title you should get it corrected.


http://media.collectorcarpricetracke...0770225187.pdf

Last edited by PRNDL; Oct 13, 2015 at 11:33 PM.
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Old Oct 14, 2015 | 07:51 AM
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Originally Posted by thunderclap
Hello,

I have a 68 coupe with VIN 1943785415117 wich I think is an early ´68.
Car has 6.300 redline tachometer, I was told it´s a 427 car.
The engine numbers are K12 20 TJB at the front of the pass side head and 3970010 at the rear.

What do you think? I don´t know what engine is.

Thank you in advance!
How are the U joints held in on rear axels attached to rear end ? U bolt or Cap strap with 3/8 fine thread bolt
How wide is radiator ? front springs would be heaver duty also
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Old Oct 14, 2015 | 08:01 AM
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Originally Posted by Pedroj68
...I found a web (NCRS) that can investigate where the vehicle was purchased, it costs $ 40...
The NCRS may have shipping data for your 68 provided your VIN is in their database. The files are not complete.

The shipping data will tell you only the name of the original dealer where the car was shipped. The information will not provide any information concerning options the car may have had.

Congrats on the 68.
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Old Oct 14, 2015 | 03:25 PM
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Thanks thunderclap
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Old Oct 14, 2015 | 03:28 PM
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PRNDL Thanks for that link, I also found this but says the same thing;

http://www.c3registry.com/index.php?...e&car_id=16451

True, the "5" is actually an "S" it was a mistake to do copy and paste

530planeman, I have done these measures, thanks

Easy Mike, thanks for the info, this car is beautiful, now has a new blue paint lemans, have ridden all exterior badges and out like a new car
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Old Oct 14, 2015 | 05:37 PM
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The radiator is Mark Harrison and is 28 x 20 ", the front springs have much rust but I bought a new 550 lb central corvette and apparently are the same size and thickness

Deputy dropbox link with pictures of these components;

https://www.dropbox.com/sh/9jdzk9zvf...KLfy_Ymga?dl=0
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Old Oct 21, 2015 | 03:33 PM
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Hello, I finally decided to buy a motor 427, but it is hard to find



in the door plate it indicates H28 (March 28), but the vin tells me it's the beginning of April,

which is the correct collector admission, 3937795 or 3919850?

What is the correct block number for my car?

Thank you.
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Old Oct 22, 2015 | 12:31 AM
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If your car is in fact a 427 car the correct block # should be 3935439, I believe they stopped using the 3916321 block around the end of January. According to your VIN the car should have been built in very early April so should have the 3937795 intake manifold.

Last edited by dugsgms74; Oct 22, 2015 at 12:42 AM.
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Old Oct 22, 2015 | 04:36 PM
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Thank you very much,

this is very complicated, little information, there is no exact date for the change from one block to another, only information recorded as correct number of cars and indicate that in April even block 3916321 was mounted by this information I think the block has be 427-400 HP (early) L68 3,916,321 and 3,919,850 admissions, which investigated other cars in late April and have the block of 3,916,321, my car is in front of them;

http://www.c3registry.com/index.php?...e&car_id=18411

http://www.c3registry.com/index.php?...te&car_id=4328

My car;

http://www.c3registry.com/index.php?...e&car_id=16451

We have requested a quotation for a complete engine to David Crane, I think that will get us out of doubt, hope to have a fair price and to restore my car with the engine home had
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