Could someone please tell me what style of pulleys are needed for a 4x4 Sapphire Cosworth? 'V' groove or ribbed? I have noticed that the escos has a tappered aux pulley??

 

normally multy "v" i think about 7 or 8 grooves in them, early 4x4 saphs had dual belt pulleys.
the ecoz is the same as the later 4x4 saphs

 

I've got a late saph and 2wd engine that i'm converting to 4wd. So the mutli v is the one?? Does it need spacer washers or anything?

 

you are going to have to replace the waterpump pulley,the crankshaft pulley,the alternator pulley or alternator, the power steering pulley and relocate the power steering pump to the turbo side of the engine,not sure if any spacers are required, but you will need the spring loaded belt tensioner assembly and pulley.
might be best if you get a good look at a 4x4 and see the arrangement.

 

Sounds like a lot of work. Better get busy then. Cheers for your help mate