BBC Oil Pans any differences???

[opelitis1]

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.

[nuch_ss396]

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