WHAT DOES JDM HONDA REPLACEMENT ENGINE MEAN?

I bought my MRS 3sgte again in 2020. Parker from NW Motor s named me and explained to me I was getting a one particular-of-a-type, clean up 3sgte motor. and he didn’t lie. I’ve received the photos to demonstrate it ahead of installation. I have never witnessed a motor this cleanse. Appears like it just came off the assembly line.The B-Collectio