I may be mistaken but I think you have a Cosworth? If so one of the owners has started a thread if you fancy joining in? Best wishes Richard :-)

Thanks that's great
Very helpful
Cheers!

Hi Mate,
They are Prodrive GC-010E Forged Monoblocks, Manufactured by Rays engineering in japan, Only 2 sets of these have ever been made in this unique matt anthracite colour direct from the factory.
The size is as follows
8.5 x 18"
114.3pcd
ET50

No issues at all with any rubbing or anything on the car, even after altering all the suspension and dropping it approx 50mm
Cars going great at the moment thanks

Hope this helps
Rob