95 cavi z24 2.3 ?

This maybe a stupid Q but i will ask it any way

My sister owns a 1995 cavi z24 today i looked to see what motor she had under the hood looked at the sticker and it said it was a 2.3

I personally thought that was weird cause all i ever hear about are the 2.2 and 2.4s

i was just wondering if u guy knew anyhting about that motor or if it is diff and/or the same as the other motors

thanks in advance for any help