I am in the process of finishing up the shortblock on my 312/333 Y and fitting the windage tray.  I have installed 351W main studs for windage tray in the main caps to allow the 302W rear sump windage tray to work in the Y.  The windage tray needs several tweaks to fit inside the Y block, but does nestle down quite nicely with patience and a cut-off wheel.  This is the third windage tray I have fitted, and it is the first one that the oil pan didn't want to fit with ease.  The Thunderbird pan has two baffles that will need to be bent down to clear the tray, and a slot cut out to clear the oil pick-up tube and dipstick.  Other than slotting the mounting holes, it goes in and looks like it was made for the Y.  Here are a few pictures of the install.  Joe-JDC

JDC