Help id engine

I know that the engine has two alternators.
I will thake better pictures.
Does the fuel injected engines have the same kzt in the serial number?

Definataly not an A1, A2, A3, or A4

Kwakanuk wrote: Does the fuel injected engines have the same kzt in the serial number?

yes..
The frame numbers start ZGT30A-000001 in 1984 the engine number starts KZT30AE

Mark,
Here is a picture of the right side of the engine. Also left side view. As you can see it' s got two altenators. This is why i believe it's either a B2 or a fuel injected voyager engine.

Also in what way is my A3 cylinder block different to other models? As far as I can see the A3 c b looks just like the one in the pics.
I know that it's deffirent from the A1 and A2. Is it the same as A4 and A5 ?

Can someone post a ZG and ZN engine serial number to help make sense in this. I just want to understand the different sequencing.

I also think it's a A5 engine.

Also I have another mystery. My A3 engine has no serial number! Nothing. The location of the serial was left blank. That is somewhat unsual don't you think ?

Yes that does seem a bit weird.