3.2 litre, quad-cam.
Having just changed the V6 engine in an Alfa 164 (same sized engine bay as the Lancia Thema - the 164, the Thema, the Fiat Croma and the Saab 9000 were all built on a shared platform), I can tell you I would not like to try to fit that engine in an X1/9 and surely the Ferrari V8 would be bigger again.
The 8.32 engine is actually a 3.0 litre (2927cc capacity) quattrolvalvole... I own one, recently had it apart for its Ferrrai "major service" and I have every piece of information ever printed about it.
Owning both a Lanica Thema 8.32 and an X, I would think it an absurd waste of time and effort and huge expense to do this conversion. If you want a Ferrari 308 then buy one.
Putting a 308 engine into an X (if it is technically possible to do) is just a way of creating the most expensive to maintain X on the planet...the roar of the engine would be terrifying
acceleration intoxicating
and smiles would be permanently cast into the driver's face
DO IT!
Doing the conversion would be an interesting and I know a fellow here in Canada that has a Thema 8.32 engine with the idea of placing it in a Lancia Scorpion....but the project to date has not happened...the electrics for that engine are mind boggling and the fuel injection is a rare version only found on Ferrari mondials produced for the Swiss market...hard to find parts for sure and harder to find a CIS guy that can handle it.
I love the 8.32..it is the most sublime driving sedan ever built bar none, the best sound, gobs of torque at high speed, excellent road holding despite a luxury ride and it took sourcing parts from the following countries to do the 'Major service" ....Italy, Germany, South Africa, England, USA, Canada, Spain....ony in the age of the internet would anyone be foolish enough to own one of these cars...But I am one of possibly three such fools now in North America to have the honour to have a 8.32 in the garage.
Here I am playing on a private highway.
[ame="http://www.youtube.com/watch?v=XNHc1QC-XJY"]YouTube- Lancia - Ferrari Thema 8.32[/ame]
[ame="http://www.youtube.com/watch?v=dgasJ8Fdn5o"]YouTube- "The Sleeper" Lancia Thema 8.32 aka "Lancia by Ferrari"[/ame]
[ame="http://www.youtube.com/watch?v=3_k8xf-3DRg"][/ame]
Paul