Random lifter rattle
Sound like a little bit of an oil pressure leak down after you shut it off.
Do you have mechanical rockers on a hydraulic flat tappet cam and lifters? If so you may need another 1/4 or 1/2 turn on the preload adjustment.
Also the oil filter using the angle adapter or not.
Like using these Carquest Brand Tall oil filters with the Red Silicone Anti-Drainback Valve.
Even just putting a tall oil filter on it if you have the room as it gives you more oil reserve in the system ready to go.
Couple things to try, let us know how it goes.