Not Ranked
While I don't agree with Jerry that it's your fault, I AM surprised that you would have a bearing problem. If the 289 was properly built with all those special parts then 7400rpm should not have been a problem. And as Jerry did state, normally you'd experence an RPM related valve train issue, not bottom end. I've seen my Boss302s bounce off of 8k quite a few times with no ill effects and that is with mostly stock rotating parts. Of course they are Boss parts but certainly no better than what you described in your engine. In short, I'd be looking for another issue other than over-speed. Not saying that it had nothing to do with it, just that unless something else were amiss it shouldn't happen as you described.
JMHO, Steve
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