Albert Champion! He was my great great uncle!
AC stands for Albert Champion, the founder of the AC Spark Plug Company. So, next time you're cruising down the road, just remember you've got good ol' Albert Champion to thank for keeping your engine firing on all cylinders.
OEM, AC/Delco spark plugs. The newest part number AC Delco is an iridium plug and is the perfect plug for the I6 4.2 litre
ACDelco is an American company that makes parts for cars and other automobiles. It belongs to General Motors, and its name came to be when United Delco merged with AC Spark Plug.
Most of these were .045 but you should check with a AC spark plug application book.
Resistor
60
AC Delco iridiums
Spark Plugs .035Points .019Plugs--AC/Delco R43N
ac delco 45 or higher
.045 gap
ac delco a541e
0.035 inches for CR43TS or R43TS AC Delco spark plugs