Thanks mate. I am finding there is almost like this "hidden" market of F85/F86 engines that are posted up as just X5s or X6s. That leads me to a question, would an F85 engine be a direct fit into an F86?
Yes, I am wanting to do all that I can to keep the car, and it is sounding like whether I rebuild or replace, at some point an engine is going to have to be stripped down. Personally, I wouldn't rely on a "warranty" either, but more for some confidence, if that makes sense.
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