Hey Glenn, there are no Scat markings, but they have the dimple like the better Chevy rods.
Did Chevy make performance 6.385 rods?
They do have the ARP bolts and not the studs with nuts.
I was told Scat and never really looked into it.
Also have the 4 1/4 crank that came with the rods. It's 10 under.