I would differ on the Audi V6 being the ONLY one that fits in the
Vanagon. However, I would agree with the fact that some work is
involved(no bolt-and-go).

My old van with the 2.8L Chevy V6 fit (with some scraping of the
deck-lid insulation, and without spacing the engine carrier lower)

I'm sure any 90-degree V6 would fit fine(since the 60-degree V6 fit
with some clearancing), considering the width would never exceed that
of the flat-4.

Just my $.02 worth.
Sudhir

On 5/2/07, John Reddick <SVYOLO@yahoo.com> wrote:
> Mitsubishi patented, in the early 80's, a counterbalancing shaft for
> I-4's to eliminate the nasty second harmonic I-4s produce.  They charged a
> fortune for the license and thus only Porsche ever paid them to use it
> (944).  The patent is now expired and I believe many companies now use
> it.  You are seeing much larger I-4's in the last couple of years:2.4-2.5
> liters are getting common. I-4's are going to get larger, and better.
>      The only modern V6 that fits, almost, into a Vanagon is the Audi/VW
> V6. It is very doable but the engines are expensive and not available in
> nearly large enough numbers to support 10 conversions a month.
>
>     John
>     Vanaru.com
>