Spark Plug recomendations

[cobaltcliff]

I am currently using AC plugs in my Mercuriser 6.2. No problem with them, just wondering if there is any thing better out there.

 

[mkast]

Re: Spark Plug recomendations

If you are not experiencing any problems, why change? You can find more expensive spark plugs, better, doubtful.

 

[windsors03cobra]

Re: Spark Plug recomendations

I prefer AC's in a GM engine.
IMO AC made good stuff for mostly good GM stuff, too bad their all bankrupt and on welfare.

 

[gadget73]

Re: Spark Plug recomendations

Mercruiser seems to waffle between AC Delco plugs and NGK plugs for their motors. Never had issue with either, but I seem to recall the NGK being slightly more expensive. I run AC in my motors.