350 vs 6.2 410 vs M6di

[bhile]

Trying to wrap my mind around the different engine options. In the process of shopping for a 2014-2018 23LSV but want to make sure I understand the engine details. 

From what it appears 2014 has the 350 GM engine that is quieter than the 6.2L? I have read that the 350 could be a little under powered when using surf gates, could I get a 2nd opinion on that?

2015-19? they were putting mostly the 6.2L Monsoon made by indmar, but is a Ford Raptor engine? Wanting to confirm this. After reading threads it seems there there is a group that deems these louder and causes more problems but not seeing any consistent problems. Could someone provide more input? Is the 6.2L Monsoon something to stay away from?

M6di is when they switch back to a GM engine? Any insight in moving away from the raptor engine while it seems other manufactures were continuing to run the raptor engines?

Would appreciate any help to clarify anything related to these engines as I want to ensure I know exactly what I am buying.

 

[dizzygti]

I'm no expert on the 350 or the Monsoon, but the biggest "advantage" of the M5/M6 is they are direct injection engines with camshaft phasing.   This means higher compression ratios and broader torque curves vs engines lacking those things.   

[teamerickson]

I also think the transmission ratio with the 350 was 1 to 1.5, vs 1 to 1.7 with the 6.2 raptor?