It looks to me like you are correct - watercooled heads and air cooled
cylinders.  The two huge pipes facing the back of the engine are to
evacuate hot air during flight.

2008/10/16 Kenneth Lewis <kdlewis@northstate.net>:
> Interesting. Sure looks like a WBX block and heads.  Air cooled cylinders?
>
> Ken
>
>
>
> On Thu, October 16, 2008 12:53 pm, thomas LaPointe wrote:
>> This will make your van FLY  ;  )
>>
>> http://www.limflug.de/index.php?page=products_motors_75-125kw_L2400DTX&lang=eng
>>
>> --
>> 1985 Full Westy "Rustfalia"
>> 1982 Full Westy "on the mend"
>> 1972 Honda Z600 2 cyl
>>
>>
>

--
Chris S.
Disclaimer: "Death and serious injury may occur"