Help with Spark Plug Choice
 

I am going to change the plugs in my bone stock all original 72 c10 with a 350 4bbl. and 87,000 miles. If I keep the truck 10 more years I may, at the most, put 10/15,000 miles on it over that time. Other than installing the Pertronix Distributor, ignition wires and one of their 40,00 volt coils I have waiting to be installed and maybe putting a dual snorkel air cleaner on the truck in the future the engine shall remain stock. My research has told me there are 4 different types of plugs, copper, platinum, double platinum and iridium. The prices vary from 1.89 for copper plug to 8.25 for the iridium. Can you guys/gals give me some real world info on what you are using for plugs. If my old memory is functioning correctly I believe that unlike todays vehicles the plugs in these engines form the 70's needed plug changes every 10,000 miles

Re: Help with Spark Plug Choice
 

Stock truck and having no issues I would stick with what's already in it.

R45TS plugs:chevy:

Re: Help with Spark Plug Choice
 

Andy do you mean don't change them or replace them with what is already there.

Re: Help with Spark Plug Choice
 

i'd check them to see what the condition is first

Re: Help with Spark Plug Choice
 

I would pull them out and look at the burn on them. If they look good go with the same thing.
Back when I had the stock 307 I changed them every 15,000 but I would pull them and wire brush them good also if I thought I had a bad one. :chevy:



http://www.totallyamaha.com/snowmobi...s/image005.jpg

Re: Help with Spark Plug Choice
 

I go against the grain and have always run Autolite 24 Copper Core plugs.

Re: Help with Spark Plug Choice
 

Its funny you mention the Autolite plugs. Not knowing what wa sin the truck and how long they'd been there I went and pulled the one closest to front on drivers side and her it is . Its an Autolite # 26 and looking at it I think the electrode looks like it should but I would guess it has been in there a long time.

Re: Help with Spark Plug Choice
 

I would go with the ac plugs and don't forget to open the gap for the electronic ign to .045 should get you 15 easy if everything else is good . back then tolerences and points weren't as good as they are now 100,000 was a worthless engine now its nothing that's why plugs had to be changed so often . I do still have a spark plug cleaner I use for points