Thanks for the comments and tips Marv. I am still at the cylinder and piston stage so pretty flexible as to the road ahead. I have seen some with radiators and water pumps, even a radiator fan, which must be pushing the limits of the engines output. Your description also highlighted a problem I had not taken into consideration. I live at an altitude of 5550 ft. so atmospheric pressure is only 12 psi. Time is my problem so the project is not advancing at a rapid rate.
Thanks again, HANS.