^^^^^^^^^^^
Keep the original engine and upgrade so a swop back is available.
If you're thinking of mine, there's no point. The swap was made nearly 15 years ago and so much was done in terms of changed engine mounts, exhaust routing, radiator, fuel system and ancillaries it was pretty much a one-way job. It would be an enormous amount of work to go back to original.
Plus, who would want to do it? If one wanted a tuned, sorted 165bhp 4/4 that had loads of performance and handling mods then mine would be a good one to buy (if it was for sale, which it isn't). If one wanted al 1980's 4/4 with a CVH I'm sure there are plenty around for sensible money. Buying mine and then trying to put it back to original spec would be frankly a bit mad.
