Thermastat
With the stock 192* I have right now, I can have the car run at 194* all day or as high as 230* if I want to. It's all in the fan settings.
I have this motor in my k5 blazer and did not realize the importance of the orifice in the radiator for the surge tank bleed hose. So i made a small orifice (the same size as a factory radiator) and this morning it came right up to 210 and I had heat within a couple miles.
I had my radiator completely blocked off and still couldn't get heat. Now the radiator is unblocked and the hoses routed correctly with the proper orifice and everything is great.
Last edited by dieseltech71; Nov 2, 2011 at 10:55 AM.






