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#1 |
Registered User
Join Date: Jun 2012
Location: maryville, mo
Posts: 302
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stock radiator question
Hi all,
so im trying to get everything sorted out before i do my swap but will the stock radiator work for a 350 motor. as far as i know my radiator is good so if possible and if it would save me from making something fit i would like to keep my original radiator |
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#2 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: stock radiator question
It will work fine. Don't waste your money on a Aluminum
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#3 |
Registered User
![]() Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,532
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Re: stock radiator question
If it is in good shape it won't have a problem cooling the 350. You may want to have the inlet in the top tank changed to take one that matches the hose for the 350 though as you have to find a flex hose with the small end if you don't do that.
I ran a stock 48 radiator with a 283 and then a 350 with no problems until the radiator died of old age. You have to run a low pressure cap though and leave room for expansion in the top tank. |
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#4 | |
Registered User
Join Date: Apr 2008
Location: Kansas
Posts: 191
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Re: stock radiator question
Quote:
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#5 | |
Senior Member
![]() ![]() Join Date: Nov 2008
Location: Glendora, CA
Posts: 6,338
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Re: stock radiator question
Quote:
You don't have to "leave room" if you install and overflow tank, do you? I have one but just haven't installed it yet. And when I do, don't I fill the tank up full and even put a little coolant in the overflow tank? |
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#6 |
Registered User
Join Date: Sep 2011
Location: Nevada City, CA
Posts: 908
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Re: stock radiator question
Piggyback Q: the stock radiator will cool a 350, but how about a 4.8 liter LS style engine? ~280 horse.
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#7 |
Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: stock radiator question
Do the AD radiators have smaller hose sizes? I have a stock rad in mine and the counter guy found two for me that fit the rad and filler neck and water pump. I just bent up a wire to get the shape and he was able to pull a bunch off the wall for me to try. I had to trim them a little but they are US made Gates reinforced hose, smooth wall, my girl doesn't like ribs.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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#8 |
Registered User
Join Date: Jul 2011
Location: Las Vegas - Nev. aka Sin City
Posts: 1,835
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Re: stock radiator question
OrrieG
do you have thepart # s of the hoses ? |
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#9 |
Registered User
Join Date: Oct 2007
Location: pittston,PA
Posts: 1,184
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Re: stock radiator question
you need a 7psi cap. that is the low pressure cap you will need. used a 79 chevy caprice cap on my gmc rad and it works great.
__________________
There is nothing you can't fix with a BFH or a FIRE WRENCH. 1997 chevy k1500 ext cab z71 (daily driver) sold 1996 chevy k1500 reg cab 4x4(daily driver)totaled 2008jeep patriot (wife's daily driver 2008 chevy 1500 ext cab 4x4 sold 2011 chevy 1500 crew cab ltz (daily driver) 1996 chevy 1500 reg cab 4x4 project sold 2006 pontiac grand prix gxp (daily work commuter) |
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#10 |
Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: stock radiator question
I will get them tomorrow, I thought I could find the previous thread but it will be just as easy to go out and look at the hose labels.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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#11 |
Registered User
Join Date: Jul 2011
Location: Las Vegas - Nev. aka Sin City
Posts: 1,835
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Re: stock radiator question
OrrieG
OK .......thanks hammerdog57 i am runnin a 7 lb cap also on my 57 - no probs and am runnin a sidewinder puller fan ! now that fan will suck the chrome off a tail pipe. lol |
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#12 |
Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: stock radiator question
Upper is Gates 20416 Lower is Gates 20584. Both had to have one end cut off because they are for other applications. My engine has a manifold neck that points forward angled up and standard long water pump. The radiator is a stock big truck radiator with upper center and lower passenger side connections. Big truck radiator is 1" thicker and about 3" deeper than 1/2-1 ton ones.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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#13 |
Registered User
Join Date: Jun 2010
Location: WA.
Posts: 436
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Re: stock radiator question
i ran same lower hose on my 56 as the 6 cylinder when i had my 283 bored .125 over and top was just a L shaped hose stock radiator worked fine ,
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