Interference Engine Question
 

I've a '84 928s and am concerned, for peace of mind, whether or not it's an interference engine. Responses appreciated! :)

The US '84 928 is not considered an interference engine.

There is some debate on whether the ROW '84 Euro is an interference engine. I do not believe that mine (the Stepson) is interference, but due to carbon build up and/or different valve relief in the various pistons used in 1984, as well as previous head work, some '84 Euro engines could be interference engines.

If your engine is not a ROW engine, you should be safe.