'05 4.7 heads - only 85k miles - Jeep Garage - Jeep Forum

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Old 10-03-2016, 12:31 AM
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'05 4.7 heads - only 85k miles

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So after a few P308 codes and eventually
the white smoke, decided to pull heads to
change gaskets and mill heads. #8 seems to
be culprit, as I've read others have.
A few questions :
- do I need to pull cam off prior to taking heads in ?
- is there a simple yet definitive way for 'shade tree'
guy to check block for 'straight' ( back by #8 ) ?
- are there replacement gaskets with a tad more
beef in area by #8, since others have seen this ?

signed, db

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Old 10-09-2016, 04:33 AM
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Re: '05 4.7 heads - only 85k miles

Do you know what caused the gasket to blow? Is this a common problem with the 4.7? What about valve seat dropping or is this more common on the hemi motors?
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