Originally Posted by cadillackid
I thought the spaerk plug issue was fixed in later versions when ford got back to using 1 piece plugs again.. I havent heard of issues with people I know of operating later V10s having plug issues.
I think that fixed the issue of spark plug failure but I think there's still the issue of people overtorquing them and stripping the aluminum threads. Instead of using a torque wrench, some just like to go by feel or give it an extra crank for good measure which is not good. Best to follow the torque spec provided by Ford.