When I bought the engine from Smeding, they didn't install a windage tray

. I wouldn't think that would be an optional thing, but apparently it was. The Dart block requires the Dart windage tray installation kit and windage tray. I ordered one from LSXeleration.com on the recommendation from Outlaw. It shipped the same day so it was a good experience with a new company.
The windage tray fit perfect with no interference, until I tried to install the oil pickup tube. I had to cut the corner off by the oil pump to clear the pickup tube and thought I was good, until I tried to put the oil pan on. The pickup was now hanging down way too low and the pan would not sit flush, also the pan wouldn't sit far enough forward to bolt up as the lip on the back of the pan was hitting the rear most mount for the windage tray.
The bracket for the windage tray that the oil pickup tube now attached to was 1/8" thicker than the bracket that was used before, add to that the thickness of the windage tray itself and now the pickup was sitting about 1/8" taller than the bottom of the oil pan. This tells me that Smeding never checked the fitment and it had to have been very close to the pan before. The internet says it should be 1/4-3/8" from the bottom of the pan, obviously if that was true the pan would have cleared it with the tray although it would have been very close.
I cut 3/8" off the mounting arm for the pickup tube and added a notch to the windage tray to clear the tube. I then flattened out and bent the tube/bracket a bit to get my clearance somewhere between the 1/4" and 3/8" that it should be.
to allow the pan to slide forward I used a die grinder and an aluminum flap disk on my angle grinder. It took a couple hours, but I'm happy with the results and glad to have a windage tray now.
Once I got the oil pan on I finished bolting on as much as I could to get it up off the floor and out of the shop so I can finish the fab work on the core support and engine bay.