Right, i'm looking for some advice for me and my boyfriend. We have a 1970 series 3-88, and before we begin ripping into to it, were unsure as to wether to leave the 2.25 engine in or convert to a 200 tdi. Any suggestions please??

Just joined, Dad has owned series 3 and now has discovery. Loved them since was little. Hopefully might have one myself eventually. So may need help :).