Oil pan?

[Fras]

On that link that you sent it has the depth dimension of 5.75" on the mast pan.

It seems the autokraft pan has a litlle bit shallower sump and has better baffling and the mast one has an o-ring. Someone on ls1 tech says the mast pan has a depth of 5.75inch at the oil drain plug . The autokraft is 5.5". I don't see the depth on mastmotorsports website though, its kind of odd that they don't have it. Because of that I would choose the autokraft pan. By the way I have a canton pan which is like the autokraft.
http://www.mastmotorsports.com/2010/..._pan_views.pdf