Best Motor for a 1987 GMC Sierra

I’m just starting my project, so far I have pulled the engine exhaust and fuel system. Now I’m looking for the best motor for the truck. I’m planning on using Optimum batteries and only need a range of 25-40 miles between charges. I have some photovoltaic cells and am planning on integrating a drive generator aft of the transmission. Truly I am ignorant on the majority of scientific and math portions but I am a good mech and am willing to break things and have great insurance when I shock myself. Any help will be greatly appreciated.

“The only true Knowledge is knowing you know nothing at all”

  • Bill and Ted