New Factory Replacement Engine
Elder User
Joined: Feb 2007
Posts: 601
Likes: 1
From: Chicagoland
About the aluminum heads issue, that's mostly been taken care of. Ford cheaped out on the mod heads in the early years by not putting enough threads in the plug holes and it came back to bite them 100k later. They've wised up since then but not before making sure Heli-Coil will be in business for a long time 
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