Just because something is posted on the net in a forum, does NOT make it true. Neither does it make it false. So readers have to do their best to discern what is or isn't fact from fiction.
Apply critical thinking to the issue at hand and decide for oneself whether the 'facts' pass the smell test.
For instance, does radios1 from Long Island who supposedly owns a Deere, and comes at Kioti threads like he knows everything about them and has nothing helpful or even slightly reasonable to say about them, and takes every possible opportunity to slam them on TBN seem credible to you? If so, then you're likely naive about how brand bashing takes place; sometimes subtly, sometimes more obvious.
This thread, and the other thread by the OP have only given vague details about the tractor in question. The one video clip of coolant gushing out of the engine/radiator, and we're told the block heater plug on the ground lead me to believe the block heater was installed incorrectly.As a result of the associated problems caused by it, the engine overheated, a valve collet failed and allowed the associated valve to drop into the piston and the engine was destroyed as a result of same. This is the most likely sceneario, given the 'facts' we have been told by the OP. And if only 450 hours, BUT actually off warranty for a year beyond the time limit; then any manufacturer has NO obligation to good will anything to the OP.
Could Kioti give the out of warranty customer a free replacement engine because of the OP's two threads on TBN? Yes, and pigs could fly any day now.
If this thread is what might, along with Eric's rants about how unfairly he has been treated by Kioti with his wildly modified in most every aspect NX series Kioti, one could imagine Kioti, and all other manufacturers giving away free engines at county fairs all 4th of July holiday, no questions asked.
Consider reality doubters, that what we've been fed so far does not add up without much more specific details already asked for by numerous knowledgeable poster's reasonable questions. Give us actual details and needed feedback. Make this tale, if possible, seem to be based in facts and maybe you can turn this around into something that could be useful to owners of Kioti tractors.