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Spark plugs

Started by slyfox, August 26, 2009, 07:59:10 PM

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slyfox

August 26, 2009, 07:59:10 PM
Hi , I have a 383 4barrel rebuilt mild, I got champion plugs in the car right now number RJ12YC short end to them , are these the right plugs?  Thanks Sly

Ghoste

#1
August 26, 2009, 08:55:18 PM
That's the brand and range I use in mine.  You'll find a lot of detractors on Champion plugs these days but I haven't had any problems with them yet.

firefighter3931

#2
August 27, 2009, 09:07:35 AM
NGK XR5's  :2thumbs:


Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

greenpigs

#3
August 27, 2009, 10:54:44 PM
NGK XR4's. I have a low cr of about 8.5 and mancini recomends them for my 440.
1969 Charger RT


Living Chevy free

aifilaw

#4
August 28, 2009, 08:01:46 AM
greenpigs and firefighter are on the right track, I use nothing but NGK's for a reason, they are the best. The model of plug is dependant on the heat range (CR)
'72 B5 Metallic Blue Hardtop
426" Wedge - Hydraulic Roller Stealth heads

Ghoste

#5
August 30, 2009, 07:05:37 PM
Until they fail me, Champion are still my best.  :icon_smile_big:
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