What thermostat should i use? I can be hard on my truck. I am just now getting the 83 running and before i start driving it i would like to replace the thermostat with something i know will work and be good for the engine. I beleive stock is a 195* which seems high. I am not super hard on engines but i can be at times. I am a person who likes to get to my speed then take it easy from there. I will romp on it from time to time no doubt. What would be a good temp?