Hi, I have an Audi A4 sport 190. The head gasket has given up so I removed the head and once I took the cams out I could see a lot of damage on 1 of the cam bearings. I took the head to benchsound who said its not really repairable. It has scored up the exhaust cam quite badly too. He had 2 new heads there but none of them had the egr hole at the back. I'm struggling to find a head with a code Bex that isn't broke. Is there any other heads I can use from a different engine code?