AC Spark plug mystery

[wrgway]

I have a set of AC Spark plugs i purchased a few years ago which are designated HSR87LP. Somehow I wound up with 11 instead of 12 and now I can't find anyone who sells that specific model. No luck finding anyone to talk to @ AC Delco either. Does anyone have any information on these. They were advertised as platinum fine wire when I purchased them. Appreciate any info.

Don Riggs
RV-7
Meyers 200D

 

[Gary Bricker]

AC plugs

AC-Delco doesn't make plugs any more. They are made by other companies and boxed for AC-Delco. The ones you have most likely have were made in the past for aircraft use by the aviation division. Like Champion it is a seperate company. Champion Automotive (Federal-Mogul) has nothing to do with Champion Aviation. Google the number and you can get some info. Good Luck.