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Engine casting number

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Old Apr 6, 2024 | 03:02 PM
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Default Engine casting number

The engine casting number on my 1963 corvette is 3782870.
i would be a interested in finding more about the engine/car.

Thanks in advance
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Old Apr 6, 2024 | 03:09 PM
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There is also a date cast as well as numbers (two sets) stamped on the engine pad. Post those or pictures.
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Old Apr 6, 2024 | 03:27 PM
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Numbers on the right side (rear) appears to g11124.
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Old Apr 6, 2024 | 03:27 PM
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The 870 block was used from 62-65 for ALL 327 engines.
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Old Apr 6, 2024 | 04:01 PM
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Numbers on right rear
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Old Apr 6, 2024 | 04:04 PM
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August 12 of 64. So that makes it a 65 model year engine. Anything on the stamp pad
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Old Apr 6, 2024 | 04:06 PM
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Stamp pad is obliterated .
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Old Apr 6, 2024 | 04:14 PM
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Originally Posted by Spowell637
Stamp pad is obliterated .
Steve,
See if you can clean it up and take some clear pictures. Pictures below of stamp pad area.


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Old Apr 6, 2024 | 04:30 PM
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I think I'm seeing double,, could be the whiskey
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Old Apr 6, 2024 | 04:45 PM
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The HP code looks correct. I can see the A/C muffler and the P/S. Should be a 4 spd car. I need to study the broach marks longer.

I think it's just a double tap at St. Louis, I'm ok with that.
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Old Apr 6, 2024 | 07:05 PM
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Originally Posted by 65hihp
I think I'm seeing double,, could be the whiskey
Put the bottle down, Don. It's an authentic double strike.
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Old Apr 6, 2024 | 07:07 PM
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Originally Posted by 63driver
The HP code looks correct. I can see the A/C muffler and the P/S. Should be a 4 spd car. I need to study the broach marks longer.

I think it's just a double tap at St. Louis, I'm ok with that.
It is and the broach marks are there...just faint. She's legit...Patrick Boyd and others have looked at it and approved
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Old Apr 6, 2024 | 07:39 PM
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Originally Posted by Spowell637
Numbers on the right side (rear) appears to g11124.
Based on the picture you posted, that is an “H”, which stands for August. The 12 is for the day of the month, and the 4 is for the the year.
August 12, 1964
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Old Apr 6, 2024 | 08:19 PM
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Originally Posted by Spowell637
Numbers on the right side (rear) appears to g11124.
Steve, you have received some excellent comments here, what are you looking to accomplish? You seem to have disappeared.
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Old Apr 7, 2024 | 07:50 PM
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What would be the best method to clean up the stamp pad? And thanks for all replies.
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Old Apr 7, 2024 | 08:01 PM
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depends on what your trying to clean? if paint use a chemical type cleaner. never any type of abrasive
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Old Apr 7, 2024 | 08:21 PM
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Thanks so much for your reply.
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Old Apr 9, 2024 | 08:44 PM
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Originally Posted by Vet76te
Based on the picture you posted, that is an “H”, which stands for August. The 12 is for the day of the month, and the 4 is for the the year.
August 12, 1964
A 12 Aug 64 block/engine in a '63? OP said it was a 1963 Vette....
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Old Apr 9, 2024 | 08:47 PM
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Originally Posted by 76redvet
A 12 Aug 64 block/engine in a '63? OP said it was a 1963 Vette....
they casted the block until 65.
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Old Apr 9, 2024 | 08:54 PM
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Point was; if truly a 64 engine, it's not original to the vehicle.
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