Can I use a EG radiator instead of a EF radiator? thanks

 

u can, but minor mods will be required
eg rad is taller
u'll have to do some notching and make your own bracket

 

It's a big pain unless you have good fabrications skills. You need to either rig a custom bracket to set the radiator lower than the stock mounts and at a bit of and angle and/or notch the cross-member. I think the easiest way is to get an after-market cross-member with EG radiator supports. JimFab makes one and Full Race should have one by now.