850 Engine Fitability Questions…

Hi guys! I have a 2010 850xp and long story short, it needs a crank and crankcase, new @ around $1800. Well, I found a used 2014 850xp motor and I assume it’s an HO for $2300. I called the dealer and they said that it would fit on the 2010 chassis, but they’ve been wrong before.

I was wondering if anyone on here has dealt with this issue or know for sure if the 2014 engine will fit. Appreciate any info!