click on each pic for a larger better view.....
in the first one, you'll see the "box" in the sump with the trap doors, aligned diagonally with the pan.....the first pictures shows the "brace" from the front corner to the front of the pan, it is half the height of the box,allowing
oil to flow from side to side, right/left.......same with the opposing rear corner..
Now in the next set of picutes, the brace from the corner of the pan to the sides of the pan is the same height as the box,basically dividing the pan in 2 sections front to rear,but feeding both side sections...
the pan in the last photos is off a 351-W,but same pan, showing the crank scraper and windage tray.......box/trap doors/braces are identical.....
when the pan is full (8 quarts)
oil level is just below the bottom of the windage tray as checked with 8 quarts of water.....
the
oil draining from the rear of the engine/shallow part of the pan feeds the rear section,which in turn will feed the box from both sides,oil from the front part of the engine feeds the front section and both side.......since the "brace" is only half the height of the box in the front/rear,oil will equalize from side to side in the front/rear sections.....but since the brace is the full height side to side,it will hold the old better front to rear sections....
Hope this makes sence, now compare to Pete's AVAID pan......lot of difference.....the one thing I don't like about Pete's pan is the "cover" over the 2 side compartments, I don't see how much oil can ever get into the side compartments......front to back is no problem as in accelerating/braking,side to side does bother me,can't see how it would function properly the way it is made and side to side is where he's losing pressure in long sweeping turns......
David