Oil pan on 360 has different diameter ends on it. 273/318/340 are both same size. 360 car pan for A, B, E are stamped 392 on the bottom - and where the sump drops down, it is approx. 3" back from the front of the lip of the pan, C body 360 oil pan is stamped different number (think it may be 789 ???) and distance from sump to front lip is approx. 1.5" . . . . 360 truck oil pan is rear sump.

I just got schooled in this after getting a 360 rebuilt and having to locate a pan for it !

As others have stated, have to look on the side of the block to see the casting numbers (i.e. displacement size) . . .

Cheers

Mark