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70 Cuda-383- Spark plug re-placement #2857572 12/09/20 11:56 AM 12/09/20 11:56 AM
Joined: Oct 2017 Posts: 28 Ontario. Canada S SunnyMopar OP member
SunnyMopar OP member S Joined: Oct 2017 Posts: 28 Ontario. Canada	Hi, I would like someone's help on Spark plug replacement for my 1970 Cuda with stock 383- 4speed *Engine was kept stock, and just freshend up.. I have 2-options from my understanding: Champion plugs or NKG OR ....? If you have replaced used on your car the 2-brands of Spark plugs, Which ONE would you recommend?? Based on your experience or other name brand of spark plugs ...please give your opinion !!! I would greatly appreciate your guidance! Thank you so much! Mopar Sunny Last edited by SunnyMopar; 12/09/20 11:56 AM.

Re: 70 Cuda-383- Spark plug re-placement [Re: SunnyMopar] #2857594 12/09/20 12:53 PM 12/09/20 12:53 PM
Joined: May 2005 Posts: 1,966 Apollo, PA. B1MAXX top fuel
B1MAXX top fuel Joined: May 2005 Posts: 1,966 Apollo, PA.	Autolite #85

Re: 70 Cuda-383- Spark plug re-placement [Re: SunnyMopar] #2857596 12/09/20 01:00 PM 12/09/20 01:00 PM
Joined: Jan 2003 Posts: 1,251 Slidell, LA Ronnman pro stock
Ronnman pro stock Joined: Jan 2003 Posts: 1,251 Slidell, LA	I currently use NGK XR 51X Iridium plugs in my 71 Road Runner. I fine they have worked well and perform great since installed 13 years ago. I only operate the car sporadically, so they have worked for me. Years back I installed some Champion plugs in a 440 challenger. One plug fouled out in about a month. Reinstalled the NGKs platinums that came out and never looked back. So in my opinion, the NGKs are superior. Ron

Re: 70 Cuda-383- Spark plug re-placement [Re: Ronnman] #2857628 12/09/20 02:26 PM 12/09/20 02:26 PM
Joined: Sep 2003 Posts: 19,366 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,366 north of coder	i agree on the NGK's.

Re: 70 Cuda-383- Spark plug re-placement [Re: SunnyMopar] #2857669 12/09/20 03:29 PM 12/09/20 03:29 PM
Joined: Aug 2003 Posts: 43,129 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,129 Bend,OR USA	Champions or Autolites for me Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 70 Cuda-383- Spark plug re-placement [Re: Ronnman] #2857681 12/09/20 03:45 PM 12/09/20 03:45 PM
Joined: Feb 2009 Posts: 3,821 New State kidmopar master
kidmopar master Joined: Feb 2009 Posts: 3,821 New State	On the NGK numbers , I actually came up with ...... "BP5S" & "BRP5S" & "3011" ??? Ordered some on Feebay for $1.50 each ! Last edited by kidmopar; 12/09/20 03:46 PM.

Re: 70 Cuda-383- Spark plug re-placement [Re: SunnyMopar] #2857871 12/09/20 10:52 PM 12/09/20 10:52 PM
Joined: Jan 2003 Posts: 4,712 Moved to N.E. Tennessee GomangoCuda master
GomangoCuda master Joined: Jan 2003 Posts: 4,712 Moved to N.E. Tennessee	NGK. XR5. In theory, there is no difference between theory and practice. In practice, there is.

Re: 70 Cuda-383- Spark plug re-placement [Re: GomangoCuda] #2858808 12/11/20 11:38 PM 12/11/20 11:38 PM
Joined: Feb 2003 Posts: 10,201 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,201 Someplace you aren't	I ran autolites for years until they stopped making them in usa. Now I run ngk and will until they stop making them in Japan. Then what, I dunno I want my fair share

Re: 70 Cuda-383- Spark plug re-placement [Re: SomeCarGuy] #2859331 12/13/20 12:37 PM 12/13/20 12:37 PM
Joined: Jul 2005 Posts: 1,770 Wethersfield,CT Ray440 top fuel
Ray440 top fuel Joined: Jul 2005 Posts: 1,770 Wethersfield,CT	I just installed these Bosch Platinum plugs in 440 in my Road Runner. Very happy with them so far. Rock auto has them on sale for 87 cents each, that is why I decided to try them. I always ram Autolite 85 before. https://www.rockauto.com/en/moreinfo.php?pk=272206&cc=1228711&jsn=1062 1969 Plymouth Road Runner 440 auto 2017 Ram 1500 Quad Cab 5.7 Hemi

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