I have yet to see ANY 4.6L go over 200k without a major problem-the 5.0L I have has run 215K with oil changes, tuneups and one water pump-never had an intake crack on the 5.0L.
I also have a 72 Econoline van that has over 450k on the original motor/3spd manual transmission(302)-oil changes and tuneups, and one water pump on that motor as well.
Like to see a 4.6L copy that feat.
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If the car next to you has a blue oval on the trunklid, tread lightly!
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