Spark Plugs ???

[thejanster]

Hey guys usually run ac delco cr43ts plugs this time I found some cr43tsm plugs are these any diffrent? can I still run these or should I takem back?

 

[RUQWKNF]

Welp, I know it's from Ebay, but their chart shows that plug is mainly for the 4.3L V6 Chevy motor.
eBay Motors: Spark Plug CR43TSM 94,95,96 Blazer,K1500,K2500,S10,G10 (item 8057080754 end time Mar-11-07 18:52:01 PDT)

And pretty much every other link I've found on Google shows the same info.

AC Delco CR43TSM spark plug - Google Search

I personally wouldn't run those. I've always had the best luck with Autolite #23s gapped at a tight .032 myself. These are what Sarah runs today.
The Autolite #24 would be stock heat range from what I remember.

HTH

Patrick

 

[yullose]

I've been running the R42's in mine.

 

[Ttype83]

tsm and ts plugs are emission type plugs and should be avoided.
I use R43's myself, but it depends on boost level, timing...etc.
I maybe moving to the R42's