340 windage tray to oil pan edge fitment

340 windage tray to oil pan edge fitment

Had the same issue but was more of a concern on my stroked 360. Edges were pushed in and the rods hit that rolled edge. Had to modify the tray to fit and clearance properly. On a 340 with shorter stroke that shouldn’t be a concern.

My original post about this:

Post on using the MP tray on a 360 with 4” stoke and oem rods:

12many said
Just thought I'd mention that if one intends on using the MP windage tray there will be some shimming and cutting required in order to clear the rods after the pan is installed. The tray kit comes with the studs, bolts and 8 washers, you double up the washers so the tray mounts a little further down to clear the rods bolt/nuts likely for stroker applications. That works fine until you install the pan. The windage tray has rolled edges that curl outward so when you push the pan home the tray is squeezed, reducing clearance. I had a few rods that hit the tray so I ended up cutting the rolled edges off. When the pan is installed the tray still is squeezed and sits tight to the pan sides, but there is ample clearance for the rods. This issue "may" only apply to the Blueprint stroker as they use the cast Scat 4" (iirc) crank with oem magnum rods w/arp bolts. Something to definitely consider if thinking about the MP windage tray.
Click to expand...

Note, when the pan is installed the edges of the windage tray (cut down, as shown in picture) fit close to the sides of the oil pan, so ignore the gap as shown between the tray edge and block.

The picture above shows how the un-modified tray mounts, the curled ends extend outward onto the block oil pan rails. Note how close the rods are to the tray, and if the pan were installed with the tray “as is” the tray will compress inward and the rods will then contact it.