there are pluses and minues to both studs or bolts.
What I like about studs is it's easy to get the nut off, especially with
heat, if the nut is rusted or stuck on there.,
what I don't like about studs is you can't easily sneak in there and
replace the exhaust port gasket.
  You can with bolts ...but sometimes the bolts get stuck in the head,
and that gets a little nervous-feeling, gettting those out sometimes.
stock-original is ...like from the factory ..
each head has studs on one end, and takes bolts on the other end, I
believe. fwiw.

On 9/21/2013 1:54 PM, Dennis Haynes wrote:
> I would just use bolts as is done on one side. With bolts in place of studs,
> if you need to pull a head you can without removing a pipe. M8 X 25 or M8 X
> 30 will work.
>
> >From Westys at rainy Watkins
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> TonyCollins
> Sent: Friday, September 20, 2013 1:18 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Help with replacement exhaust studs
>
> Ok in need the powers if cross reference.
>
> Say I needed to get exhaust studs for a  1985 vanagon and the friendly flaps
> counter person had a pea brain that did not function with out their parts
> catalog because they do not speak metric.
>
> Which modern car would you tell them to look up to get a m8 1.25 pitch X
> 40-50mm exhaust stud?
>
> Please refrain from directing me to our fabulous vendors. It could be to
> late for that :)
>
> Thanks
>
> Sent from my iPhone
>