after blowing the headgasket and changing the antifreeze water mix, and also replacing the heater hose, i now get a noise coming from the heater core in the dash. it sounds like the fluid sloshing around in the core like there is alot of air in it. its not loud enough to hear over the radio, but it was never here before.

is this normal or did i mess something up?

 

getblown5.9,

Normal after a change. Keep an eye on the bottle and top up as necessary until all air is expelled from system.

 

There is a TSB for that noise...
http://dodgeram.info/tsb/1999/09-04-99.htm

I hope this helps...