Assembly Number location at the 328 series retreived
What we know is that nearly every Ferrari has a so called assembly number. This number is more relevant than many people are aware of. It is not the Serial Number that shows the chronological built order, but the assembly number. This is most obvious on the "post-series" Enzos. Cars with very early serial numbers indicate that those cars have been built after the final official Enzo (#141920, ass. # 59050).

With early 348s and late Mondials the Factory waived the routine to assign model-specific assembly numbers and assigned consecutive assembly numbers.

On very few models the ass. # is visible from the outside (F40, 348, F355, Enzo and the 360, when you are lucky and the car has a rear Challenge Grill). On many cars ass. # is visible if either the front or the rar hood is opened. If you want to follow the location of the ass. # on the different models, just have a look at our "About Chassis Numbers"-section:

http://www.f-register.com/about-chassis-numbers

The cars of the 308-series have the ass. # stamped into the frame in the engine bay on the driver's side where the frame makes a bend. It is quite often painted over with wrinkled finish paint.

At Modena Motorsports Trackday, we have seen 328 GTS S/N 68695 and we have quite often seen 328s with an open rear hood but this car had a red mark at the inner side of the frame in the position where the 308 bears its ass. #.

Having a closer look, we really found ass. # 1071 being stamped there! The first assembly number we spotted on a 328 ever!

That sure leads to further research and the first results are coming in. Obviously there are separate ass. number sequences with GTBs and GTSs, probably as well with LHD- and RHD-cars.

The early 328s did show the ass.numbers in the same position than the 308s. At a certain point, that number did slide on the inner side of the frame - upside down...

Have a look at our collage in the "Picture Box".

http://www.f-register.com/images/Bild1.jpg