All Syty will have a Z in the VIN for the engine. However the Z code doesn't actually correspond to the Turbo Sycone-Typhoon motor, it corresponds to the LB4 motor which other S-Series came with.
The guy who is hot tanking my motor and honing the cylinders wanted the engine code, so I just wanted to make sure I gave him the right letter. This is the correct letter for something like that right?