Hey everybody was wondering if somebody could identify these pistons for me. Long story short I traded a local guy some parts for some engine parts. Eagle h beam rods with arp hardware He bought them used. He said the guy didn’t wanna remove the pistons from the rods so he just threw them in for free. He was told there wiseco 78.5mm. I checked them with a mic today and they’re 78.5mm. Only thing is their is no casting marks on these at all.

well from what I’m finding. If they're je/srp they must be from before 2004 since they have no casting marks on them.