[puddleglum]

So, I've abandoned my original idea as a poor one. I explored the coolant tank heater idea, but have moved away from that as well. I don't have a block drain in this engine and the thermostat is in the lower rad hose. Using the 2 heater hoses will give poor circulation IMO. I did some more reading on the oil pan pad heaters and decided this MAY be the best route to try first. The more I read about preheating the oil and the coolant, the better I like the idea. My problem is that there is no flat surface on the pan large enough to place the heater. Has anyone successfully used something to level out the voids so I can make this work? Would JB weld work or is there something better? I'm wondering if I could live with a single contour if I could eliminate the compound contours? What do you think? Here is a picture of the pan.