[Unklejoe]

So it looks like we might not be able to swap the bolts easily without taking the unit off.

But the bolts definitely DO look replaceable. Time to find the perfect bolt!

If they are magnesium, there's a good chance the rest of the unit is also magnesium.

I am having a hard time finding magnesium screws. I wonder how the shop identified them as being magnesium rather than aluminum?

I know BMW uses aluminum bolts for the N52 with the magnesium block, rather than magnesium bolts.