New engine noise (with video)

[digitalslacker]

Anyone have an idea what it could be?

New-ish engine went in 4500miles ago, noise started today.
http://s417.photobucket.com/albums/pp259/thedigitalslacker/?action=view&current=VIDEO0002.mp4

 

[MazdaSpeeder]

Sorry dude, that sounds like bad news. Rod knock? Maybe a spun bearing? How is it under throttle?

 

[Boosted_Speed]

you deff broke something in that motor..

 

[digitalslacker]

It seems about the same power wise as it has been. I'm too scared to turn it back on at this point.

 

[digitalslacker]

http://s417.photobucket.com/albums/pp259/thedigitalslacker/?action=view&current=VIDEO0004.mp4 Not sure if thats better or worse video