Originally Posted by ScotcH
It can be done. The bearings can be "rotated" into place, but I would never do it. Why do you think you need new mains, and if so, likely your crank needs to be polished anyway. Rod bearings can be done from below no problem.
I don't think I need new mains, it was more curiosity in case. Last year I was toying with the idea of a S54 swap, I'm just weighing options.
The porsche is out of the question due to the ridiculously high cost of parts and engine work as I found out.