Going through my parts, and, I have found 4 - 5 from 396's also maybe 427 and 454 pans.. How the heck can I tell the differences??? R there part numbers on them??? Thanks!!! T.
Camaros, Chevelles, and Novas got the BB oil pan with the gradual up-slope from the sump area toward the front of the engine.
Impalas and the like got the oil pan with the secondary step before the gradual up-slope.
Corvettes got their own special oil pan when a windage tray was used. These were L/71, L-88, ZL-1. I don't believe the L/36 or L/68
had the windage tray provision. Not really sure what oil pan they used.
Hope this helps a little....
Steve