Re: AC 43LS Spark plugs

Posted by Owen_Dyneto On 2007/4/13 8:13:34

Brrrr, that's a mighty cold plug! According to my 1962 AC catalog its about the equivalent of Champion H-14Y which is also a pretty unpopular number. Only application I saw was 1961-62 Studebaker 6 & 8 cyl.