Quote:
Originally Posted by Jmclendon
What I can't make sense of though is why the shorter plug won't fit into the 2 4 6 side of the engine. Is what turbobill suggested the most likely cause? Someone has swapped a head at some point?
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The plugs (long and short) are interchangable. The threads are the same. I can't see why they wouldn't fit unless something weird did go on like stripped threads and re-threading or a new head.
Edit: I just re-read your mismatch post. Stripped threads are my guess. Someone either busted out some rusted, frozen plugs or they over torqued them and stripped it. Either way, thank goodness they were shorties or you would have had the entire thing stripped out!