- Spark plug no longer aval . ac 43N | Hot Rod Forum
It looks like you have problems other than just spark plug heat range You went bigger on the camshaft, and just a touch on compression You will need to re-jet the carb richer, by a couple jet sizes, at least The "very white plugs" says you are running too lean now
- Spark Plug 43N please explain this - CorvetteForum
AC 43N R43N and the whole series of "N" plugs have always been threaded only half way up the OD The R43XLS, which is the extended nose version is threaded all the way up The threads in your heads is at the bottom of the hole and matches up nicely with the 43N or any other 1 2 threaded plug
- SPARK PLUGS - Chevy Message Forum - Restoration and Repair Help
It appears that the AC spark plug 43N is not made anymore Can anyone tell me what the new AC EXACT REPLACEMENT number is now? If you have the answer, where did you find it?
- 68 396 AC Delco Spark PLugs - 43N - Team Chevelle
My old Motor's book calls for the plugs in this to be AC Delco 43N Looked them up, actual 43N's are pretty pricey but I did see some equivalents that might be acceptable? I would probably also want to run a little hotter plug, always seemed to be that way "back in the day"!
- Big Block Spark Plugs - CorvetteForum - Chevrolet Corvette . . .
I keep hearing that the AC-43N is too cold for city driving or cruising, but unlike small blocks (whre there is the AC-43, AC-44, and AC-45), there doesn't seem to be a hotter plug alternative shown in the handbook
- Daimler Truck North America LLC - static. nhtsa. gov
Daimler Truck North America LLC (DTNA), on behalf of its wholly owned subsidiary, Western Star Truck Sales, Inc , has decided that a defect which relates to motor vehicle safety exists in certain model years 2020-2023 Western Star 47X, 49X and 57X vehicles manufactured March 19, 2019 through April 1, 2022
- Botetourt Co, VA – Injury Crash Causes Delays on VA-43N Near . . .
Botetourt County, VA (February 11, 2025) – A vehicle crash with injuries caused significant delays on VA-43 North in Botetourt County on Tuesday morning | Contact Police Accident Reports (888) 657-1460 for help if you were in this accident
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