Years ago at one of the old Mopar drag seminars one of the Mopar engineers said they had put a plastic window on the side of the oil pan on one of their dyno testing mule motors and found that there would be between 1.5 up to 3 full quarts of oil being blown around inside the motor when revved up so they suggested to not worry about over filling a BB V8 or 426 hemi oil pan by one or two quarts
I have built motors and intentionally left the timing cover off on the engine stand so I could see how much oil it would take to fill it up to the bottom of the windage tray, 6+ quarts on the 402 pan and almost 7 full quart o n the 1966 to 1969 stock street Hemi pans
I'm going to check a new 440 block pump gas stroker motor I'm getting ready to assemble with the 1970/1971 Hemi and 440 6 pack 6 quart oil pans, I'm betting it will take almost 8 quarts to get to the bottom of a stock Mopar windage tray
I'll try to post the results on here before the end of this year, hopefully