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Tell me about these spark plugs

Scott Kiger

Scott Kiger

FBBO Gold Member
FBBO Gold Member
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So I bought a 68 road runner that had the numbers matching engine rebuilt several years ago. It wasn’t in the car though. I totally believe that’s it a new engine, but will still tear it down just to check everything before putting it into the finished car. These spark plugs are in it. They are brand new but the part number isn’t familiar. Anybody have any info in these?
 
Scott Kiger said:
View attachment 1260626 View attachment 1260627 So I bought a 68 road runner that had the numbers matching engine rebuilt several years ago. It wasn’t in the car though. I totally believe that’s it a new engine, but will still tear it down just to check everything before putting it into the finished car. These spark plugs are in it. They are brand new but the part number isn’t familiar. Anybody have any info in these?
Click to expand...
@HALIFAXHOPS may be able to help here.
 
Scott Kiger said:
View attachment 1260626 View attachment 1260627 So I bought a 68 road runner that had the numbers matching engine rebuilt several years ago. It wasn’t in the car though. I totally believe that’s it a new engine, but will still tear it down just to check everything before putting it into the finished car. These spark plugs are in it. They are brand new but the part number isn’t familiar. Anybody have any info in these?
Click to expand...

The spark plugs shown are 3/8" reach, medium heat range, with a resistor, made by Champion for Mopar. They are equilivant to Champion RJ-13Y. The OEM supplied spark plugs would have been Champion J-11Y or Mopar P34 P. Both were NON RESISTOR type. The plugs will work just fine for a street driven car. You may want to consider the Champion J-11Y or Mopar P34P later. Autolite AP85 or AC R43S would be good alternatives......then there is the NGK guys that won't use anything else. The NOS P34P plugs are available on line or eBay or perhaps Halifaxhops may be able to help.
BOB RENTON
 
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