Posted by Vaughn on Saturday, April 12, 2003 at 11:44AM :
In Reply to: Re: What spark plugs for a 55 PW posted by Arthur P. Bloom on Saturday, April 12, 2003 at 8:51AM :
You can always convert the AC tnumber to another brand of your choice. I prefer AC or Motorcraft personally , however I'm going to try the BOSCH 4T plug next.