S50 crank into an m20 ?

[sacbmwdriver]

I've got an s50 crank laying around and want to do something with it, was thinking of doing a 24v swap in my e30 but I've seen somewhere you can put the s50 crank into an m20, so I think I'd like to see how I could go about doing this, I think I need a different crank spacer and probably s50 Rods and different pistons, anyone ever put an s50 crank in an m20 or know where I can get more info on this?

[TurboJake]

You use it in the 2.9l M20 stroker.