Need 318 Gurus

I need some schooling on the mighty 318.

I recently picked up a couple of 318 motors. One is a long block (orange) the other is complete (blue).

I know there are 2 types of water pumps for the 318, and I seem to have one of each on these engines. Blue engine inlet is on the passenger side, orange engine inlet is on the driver's side.

So, the question is, can I use the water pump and PS brackets and pulleys from the blue engine on the orange engine?
Are there other components that are or are not interchangeable?
View attachment 1715794155

View attachment 1715794156

Also, the rocker arms and shafts are different. I'm not sure if they are both stock or not. Is there any benefit to one over the other?
View attachment 1715794157

View attachment 1715794158

Thanks in advance for any answers.


Check the radiator you want to use as well. Bottom outlet is in different positions depending on the year . and which water pump is used.