Yes parts are hard to find. The pre 83 turbo charged 8.2L had head gasket problems, this one is a non turbo 83. I also agree that they were underpowered for a large application. This truck doesn't get much use and wont pull much just looking to make a toy. I don't want to do the same swap everyone and there cousin has done. The parts that I will need can be found (fuel pumps, water pumps, ext). Everything else has to be rebuilt or made. On this particular sweeper all this motor did was run the drive gear, the application will work just fine (0-80mph highway). As you said you worked on them, reverting back to my original question I answered myself, no you do not need a lift pump the pump on the motor pulls from the tank and returns as well.