There is no cosworth specialist within a 6000miles radius from where I am I am going to let the mechanics do their magic, but I want to provide them with correct information as to what to look out for etc. The car does about 600miles a year, so it doesn't really go out that much, but since I don't know what the previous owner has done to it, I don't want to take any chances. So basically all I want to find out is which parts would YOU replace if the head is coming off.