- Oct 20, 2016
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I have a 2004 Mustang GT one of the plugs has blown out of the heads I bought a tap 14mm 1.25 to rethread the head, the tap is to small for the strip spark plug hole, so I try the tap on another spark plug hole and the tap is still to small but when I bought plugs for the car I bought for a stock and all plugs fits with no issues. How can I fix this? I bought the tap at O'Reilly's for 10 bucks!