Conversion vs Swap. Thoughts?

[lkv0315]

So after many months of thought, I’ve not made it very far. This is a long shot for the future for me, but depending on the path I take, I may be able to start doing some of this soon/incrementally. Without further ado, what is more feasible; an e53 with a bulletproofed, twin turbo M54, or an N54?

As far as I’ve looked on the internet, no one has documented if an N54 will fit and play well with the E53. I just think trying to add turbos to the M54 is going to basically necessitate a full engine rebuild, since I passed 170k today, along with a new exhaust, new ecu, etc. I don’t even know if the ecu problem can be avoided in either case.

So what are your thoughts? I’d love to hear them! And if anyone knows of someone who can did this and documented it, please link that too.