Any body know where I can get hold of a 200 tdi to place in a series 3 ?
Ebay probably easiest.
Although I'd be hesitant to put a Tdi in a Series. Been there done it... twice.
I like the Tdi engines and their power delivery when tweaked. But there is no denying they are gruff, noisy and very unrefined. In a Series this is pretty terrible IMO. The mpg was good and general performance and it did allow my to make very good use of my S3 88. But I'd not choose to do it again. A Defender Tdi isn't all that refined or quiet inside, a Series is far far worse. No matter what anyone will tell you.
If I was doing it again I'd probably go for petrol unless planning on doing 12,000-20,000 miles a year in it.
Rover V8 is a known and well proven swap.
Although I quite fancied going down the 2.0 litre Rover T-Series (Mpi) route. Got the bell housing ready, but sadly sold the vehicle before taking the Tdi out. T-Series engines are rare these days though, but still a possible option.
Other options if you fancy a project. Make a 2.5 petrol turbo using the petrol 2.5 engine and the 2.5TD turbo bits or similar. I've heard of someone doing this. Wouldn't need to go crazy with power, but a nice setup I'd recon.
Other swaps could include Ford V6 (The Essex used to be a common swap at one point). Or maybe even a BMW 2.8 petrol six pot, as per the S. African Defender 90s.
If you really want a diesel I'd be tempted to look at a Td5, although I'm not sure how easy it would be to retain the Series front. Would certainly be more work.
The 2.0 litre L-Series could be an option too (as fitted to Freelanders). I'm sure I've heard of this being done before, but it'd be a more involved swap. I'd guess the BMW Td4 might be an option too, although it used a different gearbox, so I'd assume different bell housing bolt pattern.