Re: 1954 359 L8 / Iridium spark plug in place of Autolite copper resistor 308 spark plug

Posted by Owen_Dyneto On 2022/3/28 11:04:36

Absolutely, positively do NOT use a longer reach plug or serious engine damage will result!!

With no lead gasoline the standard Autolite 308 plug should give good service for 12,000 or more miles. Just my opinion but I can't see where a more exotic plug makes any sense.