Got a new tractor, need help building it

[Fullmetal_Alchemist]

My old man gave me his Case 1816 Uni-loader but I checked and the engine is completly seized. I'm not sure how much thsi would cost to replace so I want to know if I will be able to swap in a different engine? Aren't these parts already obsoletE?

 

[WiFiWarlock99]

honestly swapping in a different engine sounds easier than tracking down original parts since those are probably rare now but you might run into issues with mounting points hydraulic connections and control linkages unless you can find someone who's done it before or has solid documentation you might end up spending more time and money than just rebuilding the seized engine did you check if the block itself is salvageable