Scott,
I used 1/2" plate and lightened it up with lots of lightening holes.  For the bolt pattern,  I just placed the original oil pan on the plate in the proper aligned position and prick punched the hole locations with a transfer punch.  Then I used a pin point wiggler in the drill press to locate each prick mark, center drilled, then drilled out the hole.   I didn't have to rat-tail file a single hole.  They all ligned up perfectly.

Dave Clifford
-------------- Original message --------------
From: Scott <squiggles@yahoo.com>

> Hello All...
>
> Well I've given up on another attempt at an engine
> mount( fabricating an alternate alternator mount pad
> which lined up extactly and allowed the right belt
> tension did this one in ) and am throwing in the towel
> to go with the sandwhich plate approach.
>
> I was hoping someone might have already had the holes
> plotted in a tool which I could just print out and
> tape to my plate and start drilling.
>
> Additionally, in Tracy's rotary conversion guide he
> suggests a 1/4" 2024 plate, is this still the
> prevailing wisdom?
>
> Thx...
> -Scott
>
>
>
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