Hi Ernest,

The magnetic flux will stay in the loop formed by those thin metal
plates.  You shouldn't see much effect from the bolts going through the
holes in the ends.

I believe these coils are bolted to a steel bracket with steel bolts in
the auto application.

Bob W.

On Tue, 09 Oct 2007 22:56:18 -0400
Ernest Christley <echristley@nc.rr.com> wrote:

> I spent the evening laying out my firewall forward.  I was going to wait
> till everything aft of the firewall was complete, but I've got to get
> the general layout settled so that I know where the hoses and wires are
> going to pass through.
>
> Anyway, I'm using the LS1 coils, and plan to mount them on the engine
> below the spark plug as several other have demonstrated...strung
> together with 1/4" all-thread and spaced with some 3/8" aluminum tube.  
> But then I started to looking at what I'll be running that all-thread
> through, a bundle of thin metal plates that is supposed to keep the
> electrical energy concentrated within the coil.  What will be the effect
> of running a steel rod through them?  Will it connect them all
> electrically?  Am I being goofy?  Inquiring minds want to know.
>
> I got my degree, but I never really ever got a handle on how those
> magnetic fields work.  I can't even remember the proper names for all
> the parts.
>

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