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Topic: Need help in deciphering this engine ID

in Forum: C3 Engines


Need help in deciphering this engine ID

Posted: 6/8/22 1:49pm Message 1 of 8
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Milford, DE - USA
Joined: 11/6/2021
Posts: 67
Vette(s): 1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black

Sorry its upside down as you can see/




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Re: Need help in deciphering this engine ID

Posted: 6/8/22 1:52pm Message 2 of 8
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Vette(s): Used to own a 1979 Corvette now owned by JB79

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Re: Need help in deciphering this engine ID

Posted: 6/8/22 2:03pm Message 3 of 8
Former Member
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Milford, DE - USA
Joined: 11/6/2021
Posts: 67
Vette(s): 1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black

Thank you




Re: Need help in deciphering this engine ID

Posted: 6/8/22 2:19pm Message 4 of 8
Former Member
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Milford, DE - USA
Joined: 11/6/2021
Posts: 67
Vette(s): 1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black

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

Posted: 6/8/22 2:52pm Message 5 of 8
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1525
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.

CLA is a 350ci 180hp automatic transmission.

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




   

Re: Need help in deciphering this engine ID

Posted: 6/8/22 2:59pm Message 6 of 8
Former Member
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Milford, DE - USA
Joined: 11/6/2021
Posts: 67
Vette(s): 1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black

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

Posted: 6/8/22 6:47pm Message 7 of 8
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
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

"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

Posted: 6/8/22 6:51pm Message 8 of 8
Former Member
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Milford, DE - USA
Joined: 11/6/2021
Posts: 67
Vette(s): 1977 C3 Auto Coupe Lt Blue/Dk Blue Prev. 1968 C3 convertible 4spd Red 1984 C4 Automatic Silver 2000 C5 Automatic Black

thank you




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