What is involved in swapping a 5.3 to an F-body oil pan?

It's a bolt-on pan swap with a few details:

• Why: the truck pan is over 8 in deep; the F-body pan is about 5-5/8 in at the sump, more than 2 in shorter. It's one of the most popular LS swap pans.
• Capacity: Speedway lists the F-body-style pan at about 5 qt. Their own steel swap pan holds 7.
• Pickup: use the pickup that matches the pan. Pickup O-ring: lubricate it generously with oil when installing the pickup. Speedway warns a dry O-ring tends to tear and cause oil pressure problems.
• Oil filter: check where the filter mounts on the pan you buy — some swap pans don't have a filter mount and need a remote filter kit.

Measure your clearance and filter pans by sump position and depth in the oil pan picker; drawings are in the oil pan guide.