Could get dimensions from the inside of the core and have a machine shop cut
a piece of bar stock and mill a hole in the middle of it.. essentially all
it is.

Just a thought. I'm not sure what the PN is but a friend of mine had it
done this way.

JS

"2.3Sleeper" > wrote in message
...
>I need a part number for the little restrictor thingy that you are supposed
> to use when replacing a heater core in the 87-93 Mustangs.
>
> Anyone?
>
> Don Manning
>
>