SPARK PLUGS

[Northeast300]

I am looking for the best (reasonable priced) spark plugs for my 1979 Chrysler 300, 360. Stock motor, edlebrock carb, no lean burn system

 

[PurpleBeeper]

Champion copper

 

[Lionized]

Delco.

 

[Darter6]

The Champion # is RN12YC. That's what I have used for years.Between 2 to 3 bucks each,BUT if you want exotic BCH 4479 Bosch Platinum + 4. Cost twice as much.

 

[NOSTRT980]

NGK's

 

[Dennis H]

NGK's

 

[khryslerkid]

I just paid $1.59 each for NGK XR5 at Summit

 

[hashmaker]

NGK's~ they last long and surprisingly my 440's love em. I thought I would never run asian plugs in an american muscle car but after trying them I will never use anything else.

 

[Billccm]

I'm replacing the spark plugs in my road runner. It's a 383, slight cam, msd street fire. Runs good, but has autolite 86 plugs. Previous owner put these in and I believe autolite 85 is the correct plug.
Anyhow what ngk number do you recommend for this car?
Thanks for the advice.

 

[1967coronet440]

I'm replacing the spark plugs in my road runner. It's a 383, slight cam, msd street fire. Runs good, but has autolite 86 plugs. Previous owner put these in and I believe autolite 85 is the correct plug.
Anyhow what ngk number do you recommend for this car?
Thanks for the advice.

What’s your compression ratio? If 9-10:1 I’d say probaly the BRK6e

 

[DeltaV]

As far as brands go, I have had problems with NGK on two separate occasions. One out of six plugs went electrically open...NO SPARK.