what plugs for 383 street eng mild cam - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer what plugs for 383 street eng mild cam

Print Thread

what plugs for 383 street eng mild cam #2158276 09/20/16 08:23 PM 09/20/16 08:23 PM
Joined: Mar 2015 Posts: 514 georgia M moparpro OP mopar
moparpro OP mopar M Joined: Mar 2015 Posts: 514 georgia	hi po street car b body.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2158294 09/20/16 08:50 PM 09/20/16 08:50 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	champion 12 or 13 or equivilent would be close. wallace racing has good plug heat range pics/info. what is your SCR? higher needs colder live every 24 hour block of time like it's your last day on earth

Re: what plugs for 383 street eng mild cam [Re: RapidRobert] #2158300 09/20/16 08:55 PM 09/20/16 08:55 PM
Joined: Mar 2015 Posts: 514 georgia M moparpro OP mopar
moparpro OP mopar M Joined: Mar 2015 Posts: 514 georgia	compression range will be 9.0 to 9.8.champions foul out pretty quick that is what i have now.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2158331 09/20/16 09:47 PM 09/20/16 09:47 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	there have been some good threads on plug type, iirc NGK got good reviews & that most all of em are made overseas now live every 24 hour block of time like it's your last day on earth

Re: what plugs for 383 street eng mild cam [Re: RapidRobert] #2158573 09/21/16 04:52 AM 09/21/16 04:52 AM
Joined: Jun 2013 Posts: 870 Keizer, Oregon U.S.A. E elmor353 super stock
elmor353 super stock E Joined: Jun 2013 Posts: 870 Keizer, Oregon U.S.A.	I've been using Autolite 85's in all my big blocks, with good results. They don't foul and they last. I've used them in 383's, 400's and 440's. Compressions have run the gamut from 7.8 to an honest 10:1 and everything in between.

Re: what plugs for 383 street eng mild cam [Re: elmor353] #2158766 09/21/16 02:45 PM 09/21/16 02:45 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Yup the Autolite 85 or 86 is a very consistent plug. On my oil burner I used Champions out to RJ17YC extended tip and it still fouled faster than the autolite, but my oil burner was at 1 Qt per 100 or 200 miles. NGK have always been made overseas along with Nippondenso (ND) which also made the Accel U-groove plugs. Both very nice plugs. I keep saying use AC plugs, they have been consistent high quality for me. With my oil burner I went through a lot of plugs. R. Last edited by dogdays; 09/23/16 02:03 PM.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2158819 09/21/16 03:48 PM 09/21/16 03:48 PM
Joined: Jan 2008 Posts: 486 Sonoran desert, Arizona, USA M moparjo68 mopar
moparjo68 mopar M Joined: Jan 2008 Posts: 486 Sonoran desert, Arizona, USA	I like the AC Delco R45S. Never a problem. Never fouled out. And the price is right too!

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2158933 09/21/16 06:55 PM 09/21/16 06:55 PM
Joined: Mar 2005 Posts: 660 F fury4speed mopar
fury4speed mopar F Joined: Mar 2005 Posts: 660	I have been using NGK XR5's , good plug for the price.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2159947 09/23/16 10:10 AM 09/23/16 10:10 AM
Joined: Oct 2008 Posts: 411 Harleysville, PA USA T Tommy D mopar
Tommy D mopar T Joined: Oct 2008 Posts: 411 Harleysville, PA USA	I second the Autolite 85's...at least for our 440 engines. Street or race. They don't foul. I'm guessing if you have the correct plugs and you're still fouling them, there are some tuning issues to overcome.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2160072 09/23/16 01:37 PM 09/23/16 01:37 PM
Joined: Aug 2003 Posts: 43,223 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,223 Bend,OR USA	Champion RJ12YC or RJ14YC, try the colder (RJ12YC) one first. Autolite # 85 or the non resitor #75 work well also Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2160335 09/23/16 07:12 PM 09/23/16 07:12 PM
Joined: Oct 2015 Posts: 732 Michigan B BlueRacer69 super stock
BlueRacer69 super stock B Joined: Oct 2015 Posts: 732 Michigan	I know many of you guys are down on Champion plugs and that's okay, everyone is entitled to there opinion, that is what makes the world go around. But I'm here to tell all of you that I installed a set of Champion RJ12YC in my mildly cam 440 engine back in year 2000 and I'm still running them today. Granted the car only sees 200-250 miles a year or so to car shows but times that by 16 years and you get 3200-4000 miles with zero issues. I even pulled a couple of the plugs out this summer to look at them and they still looked fine. I'm not saying I'm a Champion guy, I'm just stating facts and whats worked in my car.

Re: what plugs for 383 street eng mild cam [Re: moparpro] #2161565 09/25/16 08:15 PM 09/25/16 08:15 PM
Joined: Mar 2005 Posts: 3,145 Central NC gch master
gch master Joined: Mar 2005 Posts: 3,145 Central NC	Ran autolite for years and would today with ne regrets.I switched to NGK years ago and am happy.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1