well after selling the engine from my 405 some time ago (pretty poor really the 2.0 version mostly due to the inconsistant avac system) i kept the 405 and fitted a td lump.
I never really used it much as a td and ended up selling most of the items such as turbo etc.
Its been sat in dry storage for around 2 years and after looking around more they really are becoming rare!
So looking at gti6/2.0 turbo/hdi/v6 engines for it to be honest best value for money is the V6 can get a conversion package with manual box ecu loom shafts brake cylinder etc for around £400
iknow i will need to mod mounts etc but im sure this has been done, im sure ive seen pics on this site but cant find them now.
As per title really any hints tips would be great, think my biggest problem will be ARB as its in a stupid place on the 405 making ANY of the above converions a pain!!
