Greetings,
I am new to this forum. I owned a '78 280Z and now drive an '04 350Z. Would someone explain the "Z33" number on the home page. I thought the Z34 in the VIN was the Coupe and Z36 was the Roadster.
Later...

 

No, Its an internal designation. I don't remember what the zx series was, but the 240-280Z was the S30, the first 300zx was the z31, next 300 was z32, and 350 is z33

 

Thanks for replying... What do you mean by internal designation? Do you mean like Camaro's Z28 designation? If you look at your VIN number you will find a Z34 for the coupe, and I was told you would have a Z36 if you drove a Roadster. My brother and I both have a coupe with AZ34 in it. So what or where did the Z33 originate and what does it represent? Thanks again for replying. By the way... nice Z!!
Later...

 

Z33 is the chassis code for the 350z. The engine code is VQ35DE.

 

There's a thread that'll explain the Z34 in the VIN number, but it has nothing to do with the chassis code, which is Z33 for the 350Z. IIRC, Z34 means Z-car, 3rd in the series (as in Z31, Z32, Z33 series), and 4 means coupe (6 being, obviously, the roadster). Hope that helps.

 

This should help

http://www.courtesyparts.com/specs/vin.html