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new Dewitts on the way!

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Old 07-24-2009, 07:20 PM
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silver69
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Default new Dewitts on the way!

I've always had cooling problems with the original radiator so I ordered a new DeWitts.
I'm looking forward to driving without running the heater full blast in the middle of Summer!


Old 07-24-2009, 08:36 PM
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chris75stingray
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i'm doing the same project you are. rad and core support. i just ordered my dewitts rad today. does the core support pretty much unbolt and pull out?
Old 07-24-2009, 09:04 PM
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silver69
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not sure about your year but mine has 3 bolts on each side plus two at the bottom.
Once everything is disconnected the unit (core support,rad,shroud) pulls straight up and out.
Of course you'll need to wiggle and tug but it's not too difficult.
I had mine out on the floor in about an hour and a half without any help.
Good luck and don't forget new seals.
Steve
Old 07-25-2009, 10:11 AM
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schmegeggie
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Done both!
Yes the support pretty much unbolts, but make sure you've got the car supported well. The rad. support does provide stability to the front end.
I bought the DeWitt's dual fans for my stock replacement radiator, hasn't been above 195 since I first fired her up!
I would suggest mounting everything(the support, seals, radiator, fans) on a table/bench, then getting help setting it in place. All the support bolt holes may not line up perfectly. Mine took some wiggling, and working one at a time.
Good Luck!
Don't forget, you're going to need at least an 80 amp alternator to run those fans. I went with a 105 amp...
Old 08-06-2009, 07:03 PM
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silver69
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Installed the new radiator last night and drove it home.
hot weather (85+) and stop and go traffic but still never above 195.
I should have done this a long time ago.
If you're thinking about a DewWitts, do it now.
Old 08-06-2009, 09:27 PM
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thoyer
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I installed a new Dewitts in my 71 LS5 after chasing a high temp issue for a while. I checked and double checked everything, timing, hoses, plugs, mixture, fan clutch, shroud, shroud sealing........ etc. Nothing seemed to help. Once I put the Dewitts direct replacement in, I have yet to see it get above 190 or so, even in traffic on a hot summer day.

My original radiator, even though it "looked good" must have had build up inside it to restrict the flow enough to make it inefficient.

Some of the best money you will spend on the car.............

Tom

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