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Engin Identification

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Old Apr 29, 2025 | 05:28 PM
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Hello Fellow Corvette friends,
I was helping a friend clean out an old barn that was falling apart. We came across an old engine block with the heads off but it has the pistons and the crank. There were also a set of aluminum corvette valve covers, but they are cracked by the bolt holes.
The question I have is: Is this for sure a corvette motor and if it does is there any value? The engine block is very rusty, but it could possibly be restored.
The numbers on the engine block are:
Back driver side top of block, GM 3782870
Back passenger side top area: Date Code: A135
Back passenger side under bell housing: 852 and below H16 870
Front passenger top side serial number or vin area: 5K150406 FoI25EB

Is this just a old chevy motor or is this a Covette motor.
Any help is apreciated.

Thank you.
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Old Apr 29, 2025 | 05:43 PM
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1965 327/300 4 barrel carb, with a manual trans from a A body ( Chevelle, El Camano) built a the Kanassa city Leeds assembly plant. the engine assembled in Flint on Jan 25
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Old Apr 29, 2025 | 05:45 PM
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That EB suffix was used for some early 283s and also on 1965 327s in Chevelles since your date code looks right for a 1965 Chevy...A 13 5.
As for any value, depends on 'how rusty' it is and is it a stock bore or already .030 over.
Are the bolt holes on the finned aluminum valve covers straight across or staggered? Staggered were used for early engines and don't fit later 327s/350s.
Mike T - Prescott AZ
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Old Apr 30, 2025 | 08:29 AM
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Thank you both for the quick reply.
Do you think this is just a Chevelle motor or is there any possibility of it being a Corvette motor. If it is a Corvette motor is there any chance someone might want it or since it's been outside getting rusty for at least 20-years, should I just bring it in for scrap iron.

The aluminum Corvette valve covers were not on the motor and since they are cracked by the bolt holes, I will just use them as Wall Art
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Old Apr 30, 2025 | 09:36 AM
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It's 100% a motor from a Chevelle
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Old Apr 30, 2025 | 11:55 AM
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Originally Posted by notin
Thank you both for the quick reply.
Do you think this is just a Chevelle motor or is there any possibility of it being a Corvette motor. If it is a Corvette motor is there any chance someone might want it or since it's been outside getting rusty for at least 20-years, should I just bring it in for scrap iron.
Sorry, but absolutely not. 5K150406 is the partial VIN number for the car the engine originally came out of, and the "K" in the VIN indicates the Leeds (Kansas City) MO assembly plant were GM midsize cars (including Chevelle and El Camino) were being built in 1965. All Corvette VIN's (prior to June 1981) had a "S" where the "K" is for the Corvette's St Louis MO final assembly plant.. Additionally the "EB" suffix code at the end of the engine assembly date (F0125EB) is a passenger car (full size, Chevy II & Chevelle) engine suffix code. "EB was never used as a suffix code to identify a Corvette engine.

As far as the Corvette script valve covers, Chevrolet sold millions of them over the years. They were cheap (around $8 or $9 each in the 70's), they looked good and everyone bought them to dress up their engine and often to pretend they had a Corvette engine in their car.

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Old May 1, 2025 | 07:55 AM
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Thank you all for your great knowledge. It was worth a try.

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