Originally Posted by 11echo
I'd be interested in hearing more about this "second" radiator your planning!!???
OK try to make this a short story. We have a 39 willys. As I understand it the factory used leftover 38 front fenders and hoods for the pickups. With the BBC in it the original builder placed a radiator down low (below any grille openings). No room for a tall stand up radiator and width of radiator in its present location is limited by the original front suspension and frame.
Ever since we purchased this we have had a overheating issue - pushing fluid through the overflow and out the catch tank. Can't drive more the ten miles. Since then I have reversed the electric fan from a pusher to puller, shroud around the fan as much as possible, run 100% water, tried water wetter, installed high flow water pump, switched to synthetic oil, had the headers jet coated, installed air dams to direct flow to the radiator, installed a good thermostat & cap, installed a surge tank high on the firewall - basically every suggestion that I found on this board or have been told.
Last season at Kalamazoo Street Rods we saw a 37 Willys coming our way with a blown BB. Flagged him down and asked how he was cooling it. He showed us an extra radiator that was tucked up in the wheel well and plumbed with an electric pump.
I am basically duplicating his set up and researching where to draw coolant from. Saw the 3/4 plug in the front of the head and it looked ideal. My return line will be to the heater hose connection on the mechanical pump.
I can hear it now - road debris punching a hole. I asked him about it - said he never had a problem - thought it might have something to do with angles involved.