Heavy modifications? Rod casting numbers are the same. Rod ends are thicker, as in no side play. I cant get a .002 feeler in. Should be .010. #1&2 so far. 3$4 have. So im going to swap rods.View attachment 1715143492 ball joint press and 1/2 hour on the lathe. Goes pretty easy.
Just going off what is published on Allpar about the poly and what parts interchange. It's entirely possible that with the machining to get that poly crank into the LA block that they machines it to use LA rods.