Replacing gen 3 motor with gen 4

Hi all,

I've got issues with consistent rough start on my 2012 prius V. I'm sure the gasket is toast. I see the coolant levels going down. I cleaned all the egrs, etc.. etc. Still rough start. It has 225,000 miles so I think it's about time I just get a new engine and not monkey around with just replacing the gasket.

Would this engine work?

https://www.ebay.com/itm/115889251207?fits=Year%3A2016%7CModel%3APrius&hash=item1afb89a387:g:cqwAAOSwULRk26yV&amdata=enc%3AAQAIAAAAwCPid49G701sGAnq5%2B5iI7b567EQxNLPLZ4vt%2B1HiwhCnynsU5SJA%2FxAv3jyeJ3ordaN88jEGldIc%2F3hI1w6jfu2elY0IHqkb4ie6Kgy7a%2FcXGyVBBLYvP2EShLlY9i3eq%2Ffjh9q9XtSRksvcDzrh5DEdvDmgt9JysnnpWVM%2FbtmqRsRas5FV7QefW4Sfol4flRWdDQHT2rp7haB9Ycfq7Hv06316JZHqCSBR7FXdtI9LQar3N5u6rwvIw%2BAo8C1aQ%3D%3D%7Ctkp%3ABk9SR_CzuaveYg


I don't under stand the JDM 2ZR-Y20 2ZR. What does the Y20 mean? I think 2Zr means it's just he 2ZR engine, but the Y20. I googled and I get no results.

Thanks,
Eleision