440 build

Ok I recently pulled a 440 out of a 76 champion motorhome and I'm planning on putting it in my power wagon. I want to do a few small things while its on engine stand and I was hoping you guys would enjoy sharing some of your knowledge. I'm wanting to do cam and lifters, a set of headers, and considering intake. Not sure on any brands just yet. I'm looking for low end torque and a little rumble. Truck is a 78 3/4 ton all time 4 wheel drive.
some of the motorhomes came with a funky crank flange so you may wanna check that out. what heads are on it? and buy you a set of Hooker headers, you will probably be happy with them