I'll add that some think if the rods haven't bent after 150k miles, there is a chance they won't bend ever. I'd be careful about that, but it might be true. If a car was bought by someone who didn't floor it, the motor might not have seen the stress it would take to bend the weak rods. Then, one time during a high boost run the rod can't handle it and bends a little. Then the process of ovalling will begin at 150k miles.
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