4 vs 5 quart oil pan fitment?

[6T7 C10]

Hello everyone.
Been a fan for years and am restoring an old crusty but stock 67 C10. I am putting together a L31 5.7/350 small block for it. Looking at stock type oil pans at a popular online parts website and I am seeing a 4 and a 5 quart capacity oil pan (not including the filter capacity). Will the 5 quart pan clear the crossmember and fit okay? The 5 quart pan is only about 1/4" deeper at the rear but in the middle has a much steeper angle.