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Topic: Engine code stamping

in Forum: C3 Engines

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Engine code stamping (1/3)
5/23/25 9:21am

steves73
Limited Member
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Greensboro, NC - USA

Vette(s):
1973 corvette 454 4sp

Joined: 5/11/2025
Posts: 1

Anyone ever seen a block with letters reversed? My 73 454 should read CWM but mine reads CMW vin is correct and block pad has never been tampered with I can’t be the only one with this issue

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Re: Engine code stamping (2/3)
5/23/25 10:14am

F4Gary
Standard Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.

Joined: 8/26/2006
Posts: 1519

Dyslexic assembly line worker?

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Re: Engine code stamping (3/3)
5/23/25 9:46pm

Adams' Apple

Lifetime 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: 20211

Not unheard of for assy line worker to load one or more of the stamp characters upside down. Assuming this was done on the line, it's possible it was caught immediately and corrected, or there may have been several more stamped like that before it was noticed. Typically, however, mistakes would have been ground out and re-stamped.

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Joel Adams
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