I did a google search and can't figure it out.
CVCT is written on the engine of my 2005 Nissan Altima.
What does it mean?
Are you sure its not CVVT? Continuously Variable Valve Timing Control System.
I'm sure. The first C is outlined and then follows is the vct.
2005, Nissan Altima 4 Door Sport Sedan, 2.5 Liter 16 Valve CVCT 4 Cyl. EFI/Gas
CVCT = cute, very cute transportation (an English translation)......
The link below discusses VCT and has detailed engine photos. See if this helps. I don't know what the first C would mean, but VCT does seem to fit.
Here is a link that might be useful: Nissan link
Continously Variable Camshaft Timing.