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  • November 20, 2018, 10:44:24 AM

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Author Topic: Spark plugs  (Read 2371 times)

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Offline Sandeagle

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Spark plugs
« on: December 23, 2015, 01:53:54 PM »
After reading a bunch of stuff on this site I can never find what I am looking for. I just ordered a D.U.I. From 4 wheel drive parts, a recommended D.U.I. And the 8MM wires. I remember reading somewhere that some plugs are terrible. What are recommended spark plugs. Good plugs!!  Buy once cry once. Already have the 2150 m/c.
« Last Edit: December 23, 2015, 07:08:05 PM by Sandeagle »

Offline rommel1940

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Re: Spark plugs
« Reply #1 on: December 23, 2015, 02:05:55 PM »
When I did the big cap/coil swap I bought new autolite copper plugs and the car ran like crap,
I put back in the champion platuim plugs and it runs great, there like 5 bucks each but I recommend the champion platinum plugs
1984 Eagle Limited

Offline Sandeagle

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Re: Spark plugs
« Reply #2 on: December 23, 2015, 02:18:33 PM »
Thank you,I think your post was the one I was looking for. 

Offline eaglefreek

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Re: Spark plugs
« Reply #3 on: December 23, 2015, 02:24:36 PM »
I prefer standard copper NGK's myself.
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Offline JayRamb

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Re: Spark plugs
« Reply #4 on: December 23, 2015, 02:26:24 PM »
Champion or Autolite work great for me, gapped .35
Jayson H.
Best HWY Mileage of 87 Eagle:  26.2 MPG

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Offline macdude443

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Re: Spark plugs
« Reply #5 on: December 23, 2015, 02:34:11 PM »
I've run the Champion Copper in mine and the NGK Copper that Eaglefreek mentioned.  No problems.  Stock gap is .35, post-HEI gap is a suggested .45.
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Offline mo.eagles

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Re: Spark plugs
« Reply #6 on: December 23, 2015, 05:13:43 PM »
I've been changing spark plugs for 30 years and I prefer in this order Champion ,NGK OR Bosch ,Denso. I've never had autolite or ac delco last for very long.
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Offline mudkicker715

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Re: Spark plugs
« Reply #7 on: December 23, 2015, 08:58:15 PM »
My msd ignition runs autolites gapped at .45. Never a problem very good fire with them. My stroker turns the tires in 3rd sr4 manual with 2.73's on my sedan.



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Offline Sandeagle

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Re: Spark plugs
« Reply #8 on: December 25, 2015, 12:15:54 PM »
Thanks everyone, gonna order both champ.and NGK and will let you know which runs better. Copper seems to be the trick. I am running champions now.
« Last Edit: December 25, 2015, 12:17:36 PM by Sandeagle »

Offline carnuck

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Re: Spark plugs
« Reply #9 on: January 06, 2016, 01:00:52 AM »
Unless the plugs were dropped or something, the Autolites should be fine with the correct gap. (there were 2 completely different ranges for our AMC 6 cyls, depending on emission equipment and head design)

I still like the NGK 2288s the best (BKR6EK) which are double grounds and idle without a miss with my HEI and stock carb.
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Offline 86AMCEAGLE

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Re: Spark plugs
« Reply #10 on: May 12, 2017, 12:02:40 PM »
Copper conducts better, Platinum and Iridium last last longer.

Offline AMC1

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Re: Spark plugs
« Reply #11 on: May 13, 2017, 04:30:24 PM »
I've always had good performance with Champion & I'm probably the only who uses a torque wrench to torque the tapered plug to 11 ft./ lbs. The only plug I never liked was AC.
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Offline bradd04

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Re: Spark plugs
« Reply #12 on: July 12, 2017, 04:51:48 AM »
I personally like the performance and longevity of NGK.
« Last Edit: July 12, 2017, 04:53:36 AM by bradd04 »

 

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