No, it's not stud mounted.

Surprisingly, the pan fit great with TONS of clearance between it and the K-member. Ground clearance with 7 qt capacity was the goal with choosing that pan. Milodon did great.

Tell me more about that 70-72 b-body k member. My goal in the end is handling but of course I don't have $5k to throw at a tubular piece. Will the 70-72 just bolt up? What else will I need? Will it move the motor, affecting the trans crossmember?

As far as modding the pan, I'm just picky that way. I've heard that from a lot of people and you along with all of them are probably right. I know there is nothing wrong with modding the pan. Hell, thats how Speed O Motive does it and they're pretty damn good at what they do. I just don't want to do it.