Does anyone know how to tell a 5 quart 292 oil pan from a 6 quart pan? I think I have both. Both engines also had the dipsticks broken off, so I need to know how much each pan holds.

The one I think is a six quart pan looks like this one on ebay
 and has no relief on the back by the drain plug

One that I think may be a five quart pan has a relieved area at the back of the pan, like the one here

Anyone know off the top of their head?

Thanks
Chaz

Last edited by 66Submarine; 11/04/2013 8:14 PM.
Some of my crap:
1963 C-30 flatbed dually 292/SM420
1965 C-10 LWB fleet 250/column shift 3 speed
1965 C-30 9' stepside 250/SM420/4.10 gears (my DD)

Website I made for my crap:
http://www.66submarine.com