LS3 spec ?

I am getting a custom lightweight flywheel made and will be using a Tilton twin disc with the push release bearing. I have all the specs I need except for one as I have the trans and the engine I plan to use is still in the trans am outside, in the cold, and other projects are on the lift right now. So if someone has a block with a crank installed this would help me a ton.

I need the crank face to engine block bellhousing mounts. So does the crank face stick out past where the plate will mount or below that plane. It might even be even.

Thanks.
Troy