Originally Posted by PedroBMW
my buddy got a clean and running 318i w/ m10 for free recently, and this is the second I recall for under $200 without ever looking. My other buddy got himself an m42 (thats the 16 valve one from the e36s right) for $100 recently as well and thats a much more capable motor. I totally agree that different motors make cool different projects, but from a strictly $$/hp standpoint, the m10 would be very low on my list, meaning it would take alot of $$ for moderate horsepower. I would love to hear about a budget m10 ($5000 or less) that can make 250hp
There's a guy on another forum, well a few guys making that kind of power for way under $5000. I'll msg him and ask him how much his build bost was.
Here's a link to his cardomain page.