what plugs are best

[hifitunes]

Hello everyone I have a Chrysler 105 (model# 10574)picked up used...I removed the plugs to replace there were 2 different sets , so I went to the local store to get new ,well they pointed out a 3rd type was suited for the 105 (Champ L82C)......they have been known to be wrong so I figure ask the people that know the best and thats here .....thanx guys hope to hear back soon.....

 

[scotiany]

Re: what plugs are best

The L82C is Champion's replacement for the L4J. That was a common plug for '70s era Chryslers. If you have the original manual, that would have the information.

 

[hifitunes]

Re: what plugs are best

I have a manual on order should be in next week ...would you have any idea what these plugs are for -CHAMP L78V or CHAMP L76V........thats what the last owner had in there .....not sure if they were placed in there to keep things dry inside but they look brand new......going with the L82C but curious about others ...thanx

 

[scotiany]

Re: what plugs are best

The 1967-1974 use the Champion J4J with .030 gap if it has flywheel magneto ignition.Champion UL18V if it has Magnapower 1 or 3 ignition. The 1975 and later models use the Champion UL18V plug. There is no gap adjustment on the UL18V plug.

 

[eurolarva]

Re: what plugs are best

L20V is the plug for three cylinder chryslers. The L82C is for a two cylinder. If they dont make the L20V get it cross referenced at NAPA

 

[hifitunes]

Re: what plugs are best

but its a 1974 and its a 4 cylinder

 

[timfromfc]

Re: what plugs are best

According to the Seloc manual, the L76V works with 92-99 40hp, 50hp, 90hp, 120hp. Also 91-93 70hp, 94-99 75hp and 90-94 150hp. The L78V isn't even listed.

 

[scotiany]

Re: what plugs are best

There's a good reason they don't list them. They quit making the Chrysler brand about 1984. BTW, this topic is about plugs for a Chrysler 105, not a Force engine.

 

[ricksonntag]

Re: what plugs are best

For what it's worth, my '91 Force 50 came from the factory with UL18V. One time I could not find exact replacements, and the auto parts guy gave me L82C. Both ran fine - I could not tell the difference. The last time I went back to UL18V because they had them. I prefer the UL18V, because you can't screw up the annular gap.