That's WAY different than a poly 318. The heads are much more scalloped. If it is a 58 Dodge Super Red Ram, it is a 350 cubic inch engine. Probably make some good power.
My concerns would be if it will physically fit. If it will. what exhaust? Certainly, there probably are no stock manifolds that will fit that engine in that chassis.
I am almost 100% positive the mount ears are the same as they are on the early Hemi. That means all you have to do to get it to bolt in is cut one ear off the driver's side motor mount from the 273 and reposition it on the opposite side and weld I on. Done deal. But again, what in the world will you do for exhaust?
