valve seals

  1. F

    How common are these

    About to go look at a 97 GT with 100k miles on it in a few days. I read in a sticky that valve seals and timing chains can fail at 120k+ miles but I was wondering how common is it for them to fail? Is it a given that at that mileage I’ll run into the issue, is it 50/50 chance, etc. Besides...