Well for those that know my car as well as many other does get hot but this summer i will actually be driving it unlike anyother year so the thermo needs to go. it old and bad and you can tell in 80 degree weather. (i crank the heat to cool it down bad) Any who i am looking at the parts now and the stock temp is 195 and thats the OEM. as far as i kno the block (302 V-8) is not aluminum. (All original car 1969) i will be getting an electric fan for the Super Hot days but i am thinking for now i would like to put the super thermo in.http://www.partsamerica.com/ProductL...OE+Replacement

MAIN Question is how much would a 5 degree cooler thermo change the car or 15. i am looking at either a 180 or 190 i just want to be sure the car wont run like shit but i do know the car needs to be cooler and the super stat deffinatly sound like the better bang for the buck. need opinions and curious what it will do to the car.