Hi I have a 5.4 and the spark plug has been repaired before with a m14x1.25 spark plug saver kit. That has now blown out and the only other kit I seem to find Is 400+ dollars do they make a kit that goes from the 14x1.25 to a bigger size single or would I have to buy the whole set. Any recommendations helps I really don't want to replace the head
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Sunday, January 31st, 2016 AT 1:09 PM