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Topic: Need help in deciphering this engine ID

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Need help in deciphering this engine ID (1/8)
 6/8/22 2:49pm
Mark Laird
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Milford, DE - USA

Vette(s):
1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black


Joined: 11/6/2021
Posts: 58

Sorry its upside down as you can see/

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Re: Need help in deciphering this engine ID (2/8)
 6/8/22 2:52pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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Used to own a 1979 Corvette now owned by JB79


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Re: Need help in deciphering this engine ID (3/8)
 6/8/22 3:03pm
Mark Laird
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Milford, DE - USA

Vette(s):
1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black


Joined: 11/6/2021
Posts: 58

Thank you

Re: Need help in deciphering this engine ID (4/8)
 6/8/22 3:19pm
Mark Laird
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Milford, DE - USA

Vette(s):
1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black


Joined: 11/6/2021
Posts: 58

I cleaned up that bottom set of numbers and its the same as my vin. So, I know its the original motor. Not sure what the upper set mean though.

Re: Need help in deciphering this engine ID (5/8)
 6/8/22 3:52pm
F4Gary
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1237

CLA is a 350ci 180hp automatic transmission.

I don't have the decoder for the date stamp.



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Re: Need help in deciphering this engine ID (6/8)
 6/8/22 3:59pm
Mark Laird
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Milford, DE - USA

Vette(s):
1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black


Joined: 11/6/2021
Posts: 58

Thank you. Its original for sure..Maybe 1203 is the build date for the engine since its a 12/11/76 assembly date for the car. V ehhh don't know..Maybe plant?



|UPDATED|6/8/2022 2:59:54 PM (AZT)|/UPDATED|
Re: Need help in deciphering this engine ID (7/8)
 6/8/22 7:47pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 19992

"V" is the Flint Engine assembly line, 12= December, 03= 3rd day of December. The serial number gives the year, in this case it is 1977. "CLA" is L48, 350ci engine, Federal Emissions, for a turbo 350 trans, as has been stated. So the engine was assembled and date stamped at the Flint Engine plant on December 3rd, 1977. The VIN was stamped at the St. Louis assembly line.



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Re: Need help in deciphering this engine ID (8/8)
 6/8/22 7:51pm
Mark Laird
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Milford, DE - USA

Vette(s):
1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black


Joined: 11/6/2021
Posts: 58

thank you

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