just did a quick search on ebay for the lowering blocks.. 

http://cgi.ebay.co.uk/ESCORT-CAPRI-CORTINA-LOWERING-BLOCK-KIT-2-BRAND-NEW_W0QQitemZ4587629738QQcategoryZ27377QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

dont suppose any one would know if these would fit or not?!?!?!

an i take it i would need 2 pairs

thanks

I have an English axle in my garage, I'll measure it up when I get the chance. Otherwise measure up your parts and ask someone like Rally Design in Faversham, Kent. They are on the net somewhere. It will mess up your geometery a bit but I doubt if it will matter for autocross.