broken exhaust stud update, where do I buy a stepped exhaust stud ? Options

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I'm trying to change out a snapped off 4cylinder exhaust stud
its snapped off pretty short... between the head and the push rod tubes... nothing sticking out.

I can only get one nut on, not two

I've tried heat, pliers, etc...
I have a set of metric stud extractors.. but they are too big of diameter to fit on the stud. (the stud is pretty close to the side of the head)

I'm going to try and borrow a welder tonight and weld a nut on
does anyone know of any other trick or tool that would work in such a tight location?


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[brant]

just an update for any future soul searching this topic.

the correct stud from a 1972-1983 transporter is a stepped 8m/9mm stud and just a tiny bit shorter...

however that stud is NLA and crazy expensive if you can find one.
I found some in canada, but with shipping it was going to be about $40 for 2 studs

what the VW bus guys are doing is using an aftermarket stepped stud. It is also 8m/9m and about 56mm long. This is perfect for us since we need 53mm

still expensive at about $8/each
and shipping in a US flat rate box is better than international shipping.

I had the option of trying to heli-coil mine. mine is already drilled out by the PO to 9mm so I wasn't sure if the 8mm helicoil would work or not. There is also the option of going to a stepped 8m/10m which is much more common and much more available.

just because mine is already drilled to 9m and the threads are intact
Also because I don't know how cocentrically (sp?) the last guy drilled it
I decided to order the 9mm stud rather than take the gamble of having drill problems. Finally I rationalized that I would be leaving the material in the head in case I have to drill it in the future.

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