Spark plugs which type?

[Sebring]

Hi there guys a quick question what type of spark plugs would you recommend for my 73 satellite with a 318 in it ? (Original motor with a mild cam) and the gap size too thanks in advance, sebring

 

[slepr1]

NGK #GR4
.035 gap

 

[ODZKing]

Rock auto has excellent prices on plugs, that is where I purchased my NGKs for my 73 and 67.
One comment, many recommended the NGK plugs over the Champion. Everything is a matter of preference certainly but I noticed no difference between the two. Yes I would get the NGK plugs again but as far as I can see, nothing wrong with Champions as well. My 2 cents.

 

[Sebring]

Rock auto has excellent prices on plugs, that is where I purchased my NGKs for my 73 and 67.
One comment, many recommended the NGK plugs over the Champion. Everything is a matter of preference certainly but I noticed no difference between the two. Yes I would get the NGK plugs again but as far as I can see, nothing wrong with Champions as well. My 2 cents.

Thanks to all much appreciated

 

[Sebring]

Thanks to all much appreciated

While I've got your attention what about wires and cap?

 

[ODZKing]

I ordered Mopar wires from Chrysler, dealer item. Cap from NAPA, they have the correct color (tan).
Summit Racing or Jegs as well.

 

[Sebring]

I ordered Mopar wires from Chrysler, dealer item. Cap from NAPA, they have the correct color (tan).
Summit Racing or Jegs as well.

Thanks

 

[mopar73dge]

I used Bosch platinum no tip for 15 years ran great switched to NGK for a few years until I found a NOS set of Mopar Champion in the boxes, they work great the car has good power. The plugs are well plated on the outside too.

 

[ODZKing]

As I said before, many recommended the NGKs over the Champions and when asked why, some replied that the Champion plugs now came from China or Japan. Where do you think NGKs come from? Japan!
I have had fairly good luck over the years finding NOS Champion plugs at flea markets at car shows. Know what you need before you look and buy as many as you can if they have them.
The original Service Manual calls for N13Y for 318 2bbl.

 

[Sebring]

As I said before, many recommended the NGKs over the Champions and when asked why, some replied that the Champion plugs now came from China or Japan. Where do you think NGKs come from? Japan!
I have had fairly good luck over the years finding NOS Champion plugs at flea markets at car shows. Know what you need before you look and buy as many as you can if they have them.
The original Service Manual calls for N13Y for 318 2bbl.

Thanks for the info

 

[71Beeper]

Try the NGK Iridium tip plug - an excellent plug.
They are pre-gapped, so no need to set the gap on them.

 

[Sebring]

Try the NGK Iridium tip plug - an excellent plug.
They are pre-gapped, so no need to set the gap on them.

Thanks Beeper,would there be a number to go with these plugs? Ps l used to live in Kitchener

 

[idrivemopar]

Try the NGK Iridium tip plug - an excellent plug.
They are pre-gapped, so no need to set the gap on them.

I wouldn't count on the gap being 100% on, always check your stuff before you install.

You can always use Champion plugs, I don't know why everyone doesn't like em, I am running RN12YC in my 340 and she is running much better with the carb tuned and a cooler plug that what my builder recommended. If your engine is stock or close to it, the recommended plugs in the owners manual should be just fine!

 

[Dennis H]

NGK. Everything I own.

 

[71Beeper]

Here's the listing from the NGK website.....

 

[Slap Stick]

Isnt the n9y the stock plug for a 340? If so s n14y is hotter, not colder if my pornographic memory serves correctly.

I'm running Autolite 3923s, one step colder in my 318.

 

[RJRENTON]

Gentlemen,
Which spark plugs are best is a matter of personal preference. Many people feel NGK or AUTOLITE or BOSCH or Champion or even AC are best. Reason: mostly based on personal "feeling" that the car runs better, starts easier, gets better fuel mileage, sounds good, etc. Cost and availability are important issues as well.
Some guys swear by ________ (fill in the blanks) is very much akin which beer is best........domestic vs import vs light vs laugher vs pilsner vs ......
I believe which plug is best is up to the individual based on some trial and error experiences. If sone one recommends say NGK of a certain design, heat range and features and you purchase the recommended brand and type and the result is a damaged engine.....who will be blamed?? Do your own du dilligance. There are many engine variables that effect spark plug selections: compression ratio, spark advance characteristics, fuel distribution, cam selection, operating conditions, final drive ratio, etc. If contemplating a change proceed cautiously.....its far easier to replace a cold fouled plug than to replace "holed" piston or damaged valve. Do not be influenced by price or someone else's opinion.
In my 1970 RS23V0A GTX, l use Champion UJ-11G or Champion HO-8A.....because this is what works for me. In my instance...this is what's best....for me.

 

[Speedbird]

Many variables, but if you are running a basic stock 318.
(This one has 360 heads. Cop motor).
My daily driver.
Almost 80 miles a day 5 days a week for 15 years and across country twice before that.
Two nights ago it started running rough on the way home from work.
What I found.
This is the second time I've worn out AP65s in it that I remember.
Can't say for sure that I've ever run anything else.
Tips eroded and the car was still running fine.
That's what I use.
Shout out to FBO Systems for a very good spark in a stock looking box.
It was throwing almost 1/2 inch to the manifold.
Wonderful product.
Car really gave me no indication of a problem till the wires let go.
(I've been busy and this car has been neglected. What can I say.)

 

[Speedbird]

For reliability, I wouldn't run anything else.
Most important to me.

 

[72sunroof]

Isnt the n9y the stock plug for a 340? If so s n14y is hotter, not colder if my pornographic memory serves correctly.

I'm running Autolite 3923s, one step colder in my 318.

Correct ND this is the correct plug to run on this 318. With ethanol you may even need to go colder n7y.
Running Champions in my very warmed over 340, 0 issues and great power.