Big problem.... just realized the steering kits the oil pan hard. Also oil pan is touching the k-frame. I was so focused on getting the headers to fit I over looked this stuff. This is turning into the swap from hell.
If it helps, I believe the 402 pan may be the shortest pan depth behind the sump without the CL notch. My '69 CL just scrapes the bottom at right lock. I also removed the lip on the K member bottom for added clearance for the passenger side sump front corner. A 971 pan would surely need a CL notch or your right turns get to be wide.
My passenger side valve cover is about 1-1/2" in front of the firewall. And yeah, fan clearance is still an issue.