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I'm an original owner of a '99 Grand Sport with 3.3 and 170K. The tranny is running fine but the engine may be done. I'm hoping to get a few more miles by swapping the heads with a pair from the junk yard off a 2000 3.3. The rear head is not getting sufficient oil and the front head on the far right is close to dry. The plan, or Hail Mary pass is to unclog the oil galleys with the heads off and hope for the best. A few questions: Should I use gasket sealant for the head gaskets? Do any intake or head bolts require thread locker?
Any suggestions on how best to clean the head and block surfaces are welcome. I've yet to find a sticky on any site with a DIY guide on head replacement. Any tips are much appreciated!
Any suggestions on how best to clean the head and block surfaces are welcome. I've yet to find a sticky on any site with a DIY guide on head replacement. Any tips are much appreciated!