Originally Posted by repoman
looks almost like what happended to my truck my truck few weeks ago!
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4.7 or Hemi?
I'm finding out that the valve seat issue in the 3.7 V6 and 4.7 V8 are a LOT more common than I ever thought.
A lot of times with even mild over-heats the valve seats go - the aluminum heads expand while the pressed-on, hardened steel seats don't and they just drop out - but they go unreported by vehicle owners because it's simply called "warped heads" by the mechanic. So A LOT of these head gasket and/or warped head issues we read about with the 4.7 all the time are in actuality the valve seat failure.
Although mine's never gotten over about 215* the whole time I've had it, so even though it's more common with over-heats, it can happen to any of 'em...
Hybrid Mode
