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for 10-12 more bucks online you can just buy a set of 8 motorcraft/beru's and save the guess,as to if they will last,or worst swell up in the head and break off when you go to change them, causing you to lift a motor,pull a head or two,replace head gaskets,and other gaskets required,and that's after the hard work of extracting the things,or paying a machine shop to do it.
short answer;
i doubt they're worth the dime to chance it.
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