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Old 03-20-2024, 07:30 PM   #5
leegreen
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Join Date: Mar 2022
Location: Surrey BC
Posts: 704
Re: GMC LS Swap Radiator question

I agree, stock LS do not seem to be hard to cool. There is a lot more radiator in my original '52 than in front of either of two LS in our fleet right now. So if you have a good radiator in the truck now that will support a 15lb cap give it a shot.

the turbonasty rad looks right, hose sizes, steam port etc. Maybe ask them for specific radiator hose part numbers to see if they have actually supported the install before.

I'd also get them to confirm there is clearance between the rad hose outlet on the block and the water pump pully to that electric fan they sell. Looks to me those three are all going to be in the same spot. If they give you a vague answer you know you are on your own to make it fit.
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