I think the 400 ex will,but I believe you have to use everything,spindles,tie-rods,ect.There are a few threads on this subject.Are you just talking about just shocks or complete front-end?
I have seen Honda 450r shocks on a Dale sometime ago,dont know what had to be done to make them fit though.I think YFZ shocks are to short.I know DS450 shocks are to long.I sold a pair of Ohilns to a buddy,the bolted right-up to his Raptor 660,hope this helps.
If you have a long travel set-up,raptor shocks will not work,unless they are l.t. also.Why not look into Moto shocks?They are L.T. and will bolt right up.