Re: Spark Plugs

Posted by Owen_Dyneto On 2012/5/19 17:47:23

According to the AutoLite website, the currently recommended plugs matching the OE specifications for 1955 Packard are:

#437 for 7/16 reach
#65 for 3/4 reach.

I run #65 in my 56 Packard V8 with excellent results.