A Vauxhall VVTI 1.8 (several have followed this route, but the originator has now stopped this kind of work for other avenues) Very effective, not quite as easily available) Tim (Hamwich on here) has this conversion. I'll let him give you the story from the horse's mouth.
Yep, I have this conversion and jolly good it is indeed, the Vauxhall Ecotec VVTi engine is powerful (165bhp with an MBE ECU), light, compact and perfectly suited to installation in a 4/4. You can get all the important bits from SBD Motorsport.
But: it's comparatively old tech, my conversion was done in 2008. I think these days I'd be looking to bung an MX5 motor in if I were going to change the engine.
