Any real difference between factory 340 and 360 connecting rods?

NO..they are stock mopar size, the .927 is reference to the width of the big end of the rod, not the pin size. There were selling for 187 dollars and I bought a few sets...

Pin End Bore Diameter (in): 0.984 in.
Big End Width (in): 0.927 in
I`m probably the guy, in the past that posted about running the pin end , steel on steel w/ no bushing, full floater. I was building a 383 sbc, and I like full floating pins. The machinist that did the work on that block told me it would work, said he`s done it many times. So we tried it and no problems, was probly about 400-450 horse engine. It ran till I sold it ( low 11`s) and built a 406.