258 engine complete rebuild - JeepForum.com
 
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post #1 of 6 Old 07-07-2013, 06:48 PM Thread Starter
tjeep1
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1978 CJ7 
 
Join Date: Oct 2012
Location: northeast
Posts: 171
258 engine complete rebuild

what spark plugs are you guys running in these engines,e3-ngk-champion-etc. any input would be great again motor is fresh all rebuilt bored 20 over thanks in advance

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post #2 of 6 Old 07-07-2013, 07:06 PM
only in a jeep cj
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The regular champion the ....RFN14LY or whatever the numbers are

Ed
1975 CJ-6 1983 CJ-8
1986 CJ-7 Laredo 1986 TJ-7 Trail Jeep
2003 Inca Gold TJ Rubicon
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post #3 of 6 Old 07-07-2013, 07:07 PM
petey156
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Champs
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post #4 of 6 Old 07-08-2013, 10:05 AM Thread Starter
tjeep1
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thanks guys champion it is
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post #5 of 6 Old 07-08-2013, 11:56 AM
WindKnot
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I agree with the Champions and I'll go further... Forget all about platinum, iridium, unobtanium, etc. and stick to good old copper plugs. They may be effective with newer designs, but even with a HEI replacement ignition system, all the 258 needs is a copper plug. The others will cost more and do no better; save your money on this one!

I'd rather be lost on the trails than found at home!

Phoenix Rising- A Flame Off Restoration? http://www.jeepforum.com/forum/f8/ph...ation-1807257/
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post #6 of 6 Old 07-08-2013, 01:04 PM
Hawk4097
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I went NGK with My HEI distributor
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