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My overheating, radiator solution

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Vanquished

Number of posts : 13
Location : Massachusetts
Registration date : 2015-06-01

My overheating, radiator solution

Post by Vanquished on Sun Jul 16, 2017 4:03 pm

Thought I'd share the solution I used for my 350 overheating issue. My van was running at 230 degrees in the matter of a few minutes. Pretty extreme heat issue. I recently replaced the water pump with a Milodon high flow pump. Replaced the radiator with an aluminum one from Howe, part number 342A2816NF. I also used an aluminum Howe surge tank, part number 3424. I am using a 180 thermostat, with dual electric fans, pushing and pulling. My van is now running at a steady 190 degrees, in 90 degree weather. Hope this can help anyone still searching for a cure. I'll try to post some pics.
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Eds-68-Chevy

Number of posts : 64
Location : Massachusetts
Registration date : 2011-10-17

Re: My overheating, radiator solution

Post by Eds-68-Chevy on Sat Jul 29, 2017 2:48 pm

I've been thinking about getting that same radiator for my 68. How did you mount the bottom of the radiator? Do you have any pics of that?
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kookykrispy

Number of posts : 1453
Location : Tacoma, WA
Age : 44
Registration date : 2009-05-22

Re: My overheating, radiator solution

Post by kookykrispy on Sun Jul 30, 2017 8:24 am

I like your surge tank. Where did you get that?
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Vanquished

Number of posts : 13
Location : Massachusetts
Registration date : 2015-06-01

Re: My overheating, radiator solution

Post by Vanquished on Tue Aug 01, 2017 6:30 pm

I'm using stock style bottom mounts, with the rubbber insert that it sits in. Top mount is just sheet metal bent around top with flat rubber under it. The surge tank is a Howe tank, I ordered through JEGS.
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No1rascal

Number of posts : 277
Location : Toms River, NJ
Registration date : 2013-02-19

Re: My overheating, radiator solution

Post by No1rascal on Wed Aug 02, 2017 9:02 am

How many rows is the radiator? thanks
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Vanquished

Number of posts : 13
Location : Massachusetts
Registration date : 2015-06-01

Re: My overheating, radiator solution

Post by Vanquished on Thu Aug 03, 2017 12:14 pm

It's a two row.
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vrod64

Number of posts : 67
Location : Katy Texas
Registration date : 2013-07-20

Re: My overheating, radiator solution

Post by vrod64 on Tue Nov 28, 2017 5:26 pm

My van cooled off 15 degrees by just putting on the belly pan. a MUST.
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67VanHelsing

Number of posts : 96
Location : Los Angeles, CA
Registration date : 2014-03-04

Re: My overheating, radiator solution

Post by 67VanHelsing on Wed Dec 06, 2017 12:25 pm

Thanks for the post!
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67VanHelsing

Number of posts : 96
Location : Los Angeles, CA
Registration date : 2014-03-04

Re: My overheating, radiator solution

Post by 67VanHelsing on Fri Jan 05, 2018 8:51 pm

Hey Vanquished,
I went ahead and bought your setup but I have a questions; What did you use on the side with the AN fitting? I was thinking of using a AN coupler to an 1.25" fitting. Something like this
1.25" fitting
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JackeFriend

Number of posts : 441
Location : La Mesa CA
Age : 59
Registration date : 2016-05-06

Re: My overheating, radiator solution

Post by JackeFriend Yesterday at 7:57 am

Well, I was not alone in my NEW heat issue it seems! Glad to have company in the heat!
I bought and I am having the Milodon High Flow water pump and High flow thermostat installed this week.
I have a new 4 core radiator and expansion tank already. I had not driven much while getting the van going. Now that I am driving it more, I see the heat gauge going to 230-240 within 12 miles of travel.
I had to take it back to the radiator guy to make sure the radiator was fine (brand new only 100 miles)? It was... now it must need a new water pump, I think the old original one is still on the engine.
It will be great to not be sweating bullet's with the box cooking next to my leg! I actually got a burn and blister it was so darn hot!
With summer fast approaching I gotten get this fixed!

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Re: My overheating, radiator solution

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