Re: Spark Plugs

Posted by PackardV8 On 2011/9/7 18:16:43

THe AC R43XLS should be way too cold of a plug for the PackardV8 or even any engine unless it's running under extreme heat/load conditions. R45XLS should be alot a closer. For rather cold intermittent use of the engine a R46XLS or 47 mite be even better yet.

AS for the other brand of plugs listed it's difficult to determine (maybe except for AL and MotorCraft) because they change their numbering system about as often as i change my socks.