215 spark plug question
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Mountain Pass
Joined: Jun 2012
Posts: 177
Likes: 1
From: Arab, Alabama
215 spark plug question
Deciding on a spark plug for the 215. I would like to use the Iridium plugs but not sure which ones fit. Planning on using an HEI or Duraspark II dist. out of a 300 with an MSD 6A so it should be a hot spark which is why I am second guessing using the stock copper core plugs.
Anyone have experience with the Iridiums in the old sixes?
Anyone have experience with the Iridiums in the old sixes?
Posting Guru
Joined: Sep 2011
Posts: 1,409
Likes: 0
From: Clitherall, MN.
My BIL had put the iridium plugs in his Jetta before my daughter bought it. 3 years old and the electrodes were wore down to where there was hardly anything left. Almost 5 bucks a piece. Not worth the money.
Elder User
Joined: Jun 2015
Posts: 791
Likes: 11
From: Louisville
No need to go crazy on a low compression engine. However... the Load-a-matic advance unit leaves a lot to be desired. A distributor from a later model 300 can be modified to fit and introduce centrifugal advance. If you're the handy sort it isn't very difficult, see: Help with 215 OHV I6 2x1 set up - Page 2 - The Ford Barn Likewise the iridium plugs, just overkill on an old, carbureted, low compression engine. The plugs will foul out long before they wear out. No amount of spark can prevent that, especially on a straight six with a single, antique carb (read: two fat cylinders, two lean cylinders, two just right cylinders - if you're lucky.)
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