Will the head from an 85 or 87 5kt fit on my >89.5 200 tqw engine? Got an angle on a "built" head from both of the above [long story], and I would like to switch the same onto my car, but don't want an Audi disaster to strike. Any problems with this trade? The guy wants to keep one, but "give" me the other--from either of the above. Thanks for your help!!! Bruce