I need to know the diameter, and how big the center hole should be. This needs to be large enough for the stock subframe mount to seat to (spacer going between chassis and stock mount).

I'm getting a quote from a metal shop for a custom radiator mount, figured I'd call and throw in the subframe spacers as well. (for SBF swap)

And there's 4 mounting points, right?

 

Anyone have an estimate? How about someone who's installed solid mounts, what was the size on those?