Need some advice on water cooling loop

[Stemz]

so ive been upgrading my system little by little. my current setup is consists of. asus Maximus formula 7, intel 4790k, 16 gb or crucial ram, 2 gtx 760 in sli, evga 1000watt psu, 256 gb samsung 840 pro, 1tb western digital hdd. all of it is water cooled. got 2 xspc radiators a 360 and 240. xspc raystorm waterblock and 2 alphacool water blocks for my gtx 760. the mother board comes with water blocks as well its called cross chill. the pump i was running was an xspc pump/res combo. this pumped has died 2 times with my current setup. its a starter pump so i know im killing it with the set up i have. some people have told me not to use the cross chill water blocks due to restriction issues, is this true?? will having a stronger pump still die on me due to the restrictions?? or do i have nothing to worry about. the pump i just ordered thats going to replace my xspc pump is a swiftech mpc655 pump with the ek top. will this pump be strong enough to push water through my current setup??

 

[wss_003]

I have my system split into 3 independant loops which will help immensely on pump life but will require more pumps and res, as if you change to a higher powered pump make sure all your fittings and hoses can handle the pressure or you will have an exspensive mess