cpark_12 Posted February 17, 2013 Share Posted February 17, 2013 I put an N42 head on my f54 block and was looking at the difference in the plugs I had in my p79 head and the ones that came out of the N42 head originally. It looks like the N42 plugs are a little shorter. Is there a reason for that? If so, which plugs do I use? Will the plugs for the p79 head be too long? Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted February 17, 2013 Share Posted February 17, 2013 The only reason I can think of for different length plugs is the P90 and P79 have a higher combustion chamber roof. I'd use plugs for 75-76 280z. Quote Link to comment Share on other sites More sharing options...
cpark_12 Posted February 18, 2013 Author Share Posted February 18, 2013 That was my initial thought, I just wanted conformation. Thanks Quote Link to comment Share on other sites More sharing options...
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