the heater core in my ef is toast and I had bought a core a while back but can't find it. I do have 2 da cores sitting here but i'm not sure if they're the same.

Unfortunately I can't compare them as my civic is 500mi away and the da cores are right beside me.

Anyone know for sure? or at least have pix/measurements of an EF/ED core? i've looked but haven't been able to find much detail