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Right now I have the stock style L48 radiator and a flex fan running. She stays cool cruising between 38-72 but outside that range tends to heat up and at idle temps simply skyrocket. Now to fix this, I was going to go with a DeWitts L82 style radiator and a 16" 2900cfm Be Cool electric fan. Now, uncle sam hit me a little harder than I was expecting this year so the DeWitts radiator is a bit out of my price range. Are there any other good AL radiators out there that will perform comparably for the time being? Also, is running the 16" e-fan without a shroud ok?
You have some good options. Obviously if you can afford it go with a Dewitt's. Top notch. But as you said budget constraints may limit you. Luckily there is a Northern radiator, through Summit, that is a fairly cheap aluminum radiator, built here in the USA, that'll work wonders for you.
I am looking for the part number now.
As for the fan, staying on the budget mind set, I would suggest a Lincoln MarkVIII fan, either from Ebay or a salvage yard and a variable speed controller from Delta.
The rad shipped will be just over $300 and the fan and controller would be another $200 or less.
Not bad.
Also make sure you seal all the way around the radiator so the only air goes through it.