15 to 30 dollars a set at most places these days.  but they are
available in a wide range of metric and sae sizes.
jimt
On Wednesday, Nov 6, 2002, at 09:47 America/Denver, George Goff wrote:

> In a message dated 11/6/02 11:18:02 AM, keepongrowin@HOTMAIL.COM
> writes:
>
> << Any suggestions? >>
>
> Install a Heli-Coil.  Because I have heard of some lost souls using a
> sprkplug as an ersatz drain plug, I believe the drain plug might use
> the same
> thread form as one size of sparkplug.  If so, the Heli-coil insert
> which you
> need should be available almost anywhere.
>
> Rich
>