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[Healeys] Cylinder Head Question

Subject: [Healeys] Cylinder Head Question
From: ab7vf at yahoo.com (jim)
Date: Thu, 22 Sep 2011 11:43:34 -0700 (PDT)
Just a thought .. spark plugs come in 'ER'  - Extended Reach - designations,
ie, the threaded portion of the plug is longer than 'normal'  plugs .. Could
these heads have been originally made for these "ER" plugs?

   Jim

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