the X25xe/X30XE's etc are of the same ilk as the saab engines.
small package, fairly narrow V so revving is off the cards, but cheap and pleantiful.
F/I the bitch and you will be laughing (although S/C would be wiser than turbos for packaging reasons)
@ trying to work a GB out for a massive conevrsion simply to blag the costs down.... cant beat that kind of chancing
The X25/30 are cast iron blocks, bit weighty!
was under the impression they were ali, never mind im sure the saab variant is ali
are they not 60 degree V angle , or some horrible VW abortion
they arent I6's if thats what you are implying with a VW comment

