can anyone help me out with this quick question?

will the clocks from a 94 uk zed work in my 90 jdm?

No, the uk 94 will have series 2 connectors whereas the jdm 90 will be series 1. Your best bet is to look for an early uk spec for the clocks.

With a bit of work you can make them work in your z

so what year did they change from series 1 to series 2?

i have seen a set from a 92 uk tt and in the advert it says fits all up to 95.

that was from andy300z on ebay, believe he is also a member on here.

here we go again....

 

 

http://www.300zx.org.uk/model_variations.htm

 

if you search on clocks you will see the difference of the plugs at the back and I think the wiring of the connectors is also different . see the FSM..

page 41 & 42 on here...

 

http://stadzport.com/FSM/EL_Electrical.pdf

so what year did they change from series 1 to series 2?

i have seen a set from a 92 uk tt and in the advert it says fits all up to 95.

that was from andy300z on ebay, believe he is also a member on here.

 

I have noticed before Andy300z getting his series mixed up, so don't take it as gospel, I would expect those clocks will fit up to mid to late 94 but certainly not 95.