Can a had accept a rocker arm assembly from another engine (of course same model)... Will the camshaft still spin ok?
I recently had to do this on my Honda civic... It turned out to be fine (at lease for now).. just a little bit noise if listen carefully, but that could be valve lash adjustment. Civic does not hydraulic lifters....Or maybe it just needs some break-in.

I am wondering if you can do that on a 6g64... People may argue that the holes for camshaft was drilled with caps on and each cap belong to its own location in its own head....... It maybe true for Porsche or something.... I think Honda and Mitsubishi have already made this part interchangeable... am I right???