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I am putting a ls1 with over 450 horse in my 80 cj7 I wanted to know what radiator people are running. The best fit seems to be around 26X19 I want dual rows and a 1.25 or 1.50 tube. Just want to get the best cooling!!!
 

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I ran a 1.5 aluminum rad on my LT1 and there notorius for overheating and had no overheating probs. Also ran a 160* thermostate, oyah make sure u set it up reverse flow, fukin jiffylube kids hooked up a coolant flush backwards on my and hydro locked my cylinders. Bastards how to pull every plug. Goodluck with yours though.
 

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I'm running a stock 4.0 radiator with my 6.0, along with a 160 degree thermostat and taurus fan. Generally lives around 180-185 degrees offroad. I've only run when it's 70-80 degrees though, we'll see what happens when summer gets here.
 
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