I'm having various stainless steel flanges cut for my turbo conversion, two of which are to bolt onto the head.
If anyone wants a pair, I should be getting the quote in the next couple of days with any luck.
The port bore I've used is 34mm which is slightly larger than the port (which in itself is a funny shape). Each flange covers three cylinders so there'll be two per engine.
This is for the M20 which in my case is from a 1985 model (not sure if later cars are different)
Post here if you're interested
Cheers!
Alex



