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78 Engine Numbers

captainfrank

New member
Joined
Jun 17, 2007
Messages
3
Location
Oxford Mi
Corvette
1978 Candy Apple Red T Top
I've been trying my best to confirm if the engine block in my 78 vette is an original. Bought 2 books that I thought would help but with no luck.

On the block there are 2 sets of numbers.

The first is in smaller letters "141451877" is followed by larger letters "K03 07 CMR".

The VIN specifies the L82 engine.

I found that the "CMR" is for a L82 engine.

Can anybody steer me to some place to confirm these codes?

Thanks.....

Captainfrank
 

duke94

Well-known member
Joined
Jan 30, 2007
Messages
277
Location
Ann Arbor, MI
Corvette
71' convert and 78' both Red
The last digits of the VIN get stamped on the stamp pad located on the right front corner of the block. If these numbers agree, you have the original block.
 

KOPBET

Well-known member
Joined
Jan 31, 2003
Messages
1,355
Location
Tulsey Town
Corvette
'73 Silver LS4 4 speed
Is that a Canadian car? It's got a Canadian engine.
 

captainfrank

New member
Joined
Jun 17, 2007
Messages
3
Location
Oxford Mi
Corvette
1978 Candy Apple Red T Top
Does the VIN end with 51877???

No it doesn't.

The VIN is 1Z87L8S426958

I think the "S" stands for St Louis.

I think the "K" in the Engine Number makes it a Canadian engine.

I don't know what I have.....

Captainfrank
 

6880 Mike

Well-known member
Joined
Jun 30, 2006
Messages
2,723
Location
The Bluegrass State
Corvette
1968 convertible; 1980 L-82
...141451877...K03 07 CMR...

Sorry to bring bad news, but these are not Corvette numbers. Your engine has been replaced. The engine identification suffix CMR indicates an L-82 with manual transmission, but the K plant code ensures the engine is not Corvette. All Corvette small blocks were assembled at the Flint, Michigan, engine plant and are coded V. 0307 indicates the engine was assembled on March 7th.

VIN derivative 141451877 is also an incorrect format for Corvette and shows a consecutive unit number of 51877. Only 46766 '78 Corvettes were built, including Pace Cars.

Info from The Corvette Black Book.

:)
 

captainfrank

New member
Joined
Jun 17, 2007
Messages
3
Location
Oxford Mi
Corvette
1978 Candy Apple Red T Top
Sorry to bring bad news, but these are not Corvette numbers. Your engine has been replaced. The engine identification suffix CMR indicates an L-82 with manual transmission, but the K plant code ensures the engine is not Corvette. All Corvette small blocks were assembled at the Flint, Michigan, engine plant and are coded V. 0307 indicates the engine was assembled on March 7th.

VIN derivative 141451877 is also an incorrect format for Corvette and shows a consecutive unit number of 51877. Only 46766 '78 Corvettes were built, including Pace Cars.

Info from The Corvette Black Book.

:)
Thanks Mike......I was afraid of this.

Frank:confused
 
Joined
Jan 1, 2002
Messages
7,246
Location
Washington, Michigan
Corvette
'67 Marina Blue Convertible
That engine was a 1974 350/145hp 2-barrel automatic, made at the McKinnon Industries engine plant in Canada (now the St. Catherine's engine plant), originally installed in a 1974 Chevelle built in the Oshawa, Ontario assembly plant.

:beer
 

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