Trouble finding Engine Stamp on 64ss - Impala Tech
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post #1 of 15 (permalink) Old 02-24-2008, 08:50 PM Thread Starter
 
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Trouble finding Engine Stamp on 64ss

Hello all,

I just purchased a 64SS and bought it under the description of it having a numbers matching 327 300hp motor. From the research that I have been able to do, I understand that I should be able to find the engine stamp on the "nub" that is at the front of the block just below the passenger head. Well, I found the nub, but no stamp. The motor was rebuilt about 2 years ago. It was painted Chevy Orange, so I even sanded down the nub, but still no number. It has a 650 Edelbrock and an Edelbrock RPM intake. The motor still has the old canister style oil filter. Additional info on the car: It's a 2speed powerglide and has factory air.

Thanks all for your help. This is a great site and intend to visit often!!

Shannon
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post #2 of 15 (permalink) Old 02-25-2008, 12:10 AM
 
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They might have decked the block which removes the numbers off of the block. Numbers matching on a 64 Impala is really done by date coding which is on the back of the block and under the valve covers. The numbers on the front of the block would just tell you that it was a 64 chevy motor and automatic/3/4 speed and I think maybe carb were the motor was built. horsepower and a few more things. You will need to look at the build date on your trim tag above the firewall/ under the pass side hood.



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post #3 of 15 (permalink) Old 02-25-2008, 02:02 PM Thread Starter
 
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Thanks for the reply. Do you have any pics or additional info on where I can find the number at the back of the block? I looked last night and could make out GM, but there is a bracket on the back of the motor that supports the kickdown lever to the tranny. Is it possible that the number is below this bracket?

Let's say that the code on the back of the motor cooincides with it being a 64 327 300hp. Is that really all I can do to verify that it is original to the car? I was under the impression that the stamp that is planed off held a partial match to the vehicle VIN?

Thanks

Shannon
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post #4 of 15 (permalink) Old 02-25-2008, 03:00 PM
 
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They didn't put particals vins on the 327's but maybe the 409's but I'm not sure about.



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post #5 of 15 (permalink) Old 02-25-2008, 03:02 PM
 
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I have a 327 out right now I can take pics for ya. If you hang on I will do that for ya right now. This one is a 327 250 hp.



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post #6 of 15 (permalink) Old 02-25-2008, 03:23 PM
 
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Ok here is the link http://rides.webshots.com/album/5566...vxOqU?start=24 hope that helps I think you will need a mirror and jack the body up above the frame.



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post #7 of 15 (permalink) Old 02-25-2008, 03:28 PM
 
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The trim tag I have pic's of is 02D build date = Feb 4 week all other parts need to be date code earlier than that. The block says A254= Jan 25 1964, Heads date code B204 =Feb 20 1964. The rearend has a date code also. See what I mean?



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post #8 of 15 (permalink) Old 02-25-2008, 08:36 PM Thread Starter
 
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Thanks for the pics!!!

Yeah, I think I follow. I think I should be able to see the numbers on the back of the block similar to what you have taken pics of. There is a bracket in the way of the #'s that are next to the "GM", but I should be able to remove it.

When I get the number's read, I will post them.

Thanks again for your help!!

Shannon
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post #9 of 15 (permalink) Old 02-25-2008, 08:45 PM
 
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It's alot harder to see when motor is in the car.



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post #10 of 15 (permalink) Old 02-25-2008, 09:50 PM Thread Starter
 
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Well, I was able to read the date casting on the back of the motor. Couldn't get the casting from the other side though. Will have to do that over the weekend since I have to remove a bracket.

The code is K862

I guess it's a 1962 block? Any chance that it could have been installed in a 1964SS from the factory?
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post #11 of 15 (permalink) Old 02-25-2008, 10:23 PM
 
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I think you read it wrong K862 would be Nov 86, 1962. the 2 numbers after K need to be 30 or less. I would say noway a 327 1962 block would be in a 1964 from the factory maybe a 409 but I doubt that to.



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Last edited by 1964 Impala Dude; 02-25-2008 at 11:43 PM.
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post #12 of 15 (permalink) Old 02-26-2008, 06:55 PM
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From what you have described I could state that this doesn't qualify as a numbers matching car.

Generally a "Numbers Matching" car has the original motor with the partial VIN still stamped into the block. With the correct date coded heads and intake manifold, exhaust manifolds, and water pump. All of these parts have date codes which were cast generally two to three weeks before the motor went into the chassis. Further the tranny should have the same VIN stamp and the rear end has stamps indicating it's assembly date. All parts were assembled seven to ten days or more before the car was assembled (not years).

MORTEC.com has all of the date codes and casting numbers, but a better source of casting number minutia is "Chevrolet by the Numbers: The Essential Chevrolet Parts Reference 1960-1966" by Alan L. Colvin who wrote a series of four books covering from 1955 to 1975.

Available at http://www.amazon.com/

Big Dave
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post #13 of 15 (permalink) Old 02-26-2008, 07:52 PM
 
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Dave I have 2 numbers matching 1964 Impalas both 327's neither have ever had a partial vin stamped on the block. The 4 speed tran did but I don't believe the powerglides do. You read alot of things in books that I know for a fact is wrong.



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post #14 of 15 (permalink) Old 02-27-2008, 08:59 AM
 
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Here is a web site that I found useful when trying to look up chevy parts. Even though it is a Camaro web site they have included numbers for all years of Chevy.

http://www.nastyz28.com/decode.php
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post #15 of 15 (permalink) Old 03-02-2008, 11:14 PM
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Hi guys,
Just want to help clarify. Chevrolet did stamp the VIN on the 327/300 hp versions in 1964. This may not always have been done but many were done depending on assembly location. They did not stamp the VIN on lower HP small blocks. So on the 283 and 327 low HP you will not find it. On the 327/300 you should look for a VIN, and on the 409 it better be there (at least for me to be convinced).
In any case you should have at least the assembly date code on the front pad unless it has been surfaced off.
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