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#1 |
Registered User
Join Date: Jan 2007
Location: shoreline, wa
Posts: 1,565
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1 row vs 2 row radiator?
whats the difference between 1 row radiators and 2 row? do the 2 rows run cooler
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68 swb fleet bagged on 20's 327 with 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=223308 2014 Chevy 2500hd duramax CCLB |
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#2 |
Registered User
Join Date: Feb 2008
Location: Grande Prairie Alberta
Posts: 261
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Re: 1 row vs 2 row radiator?
2 rows (core) can cool your coolant better than a 1 core
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eh ![]() 1970 Chevy C20 daily driver ![]() 1975 GMC Jimmy 4x4 project ![]() 1966 GMC C10 Dad's project ![]() |
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#3 |
Registered User
Join Date: Dec 2007
Location: Nanaimo B.C.
Posts: 604
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Re: 1 row vs 2 row radiator?
a 2 row has more surface area to transfers the heat to the air going past it.
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I was hooked on these trucks since 1982 when I drove my budys fathers 1968 Custum GMC 396 automatic dana 60 rear with a power lock diff what a ride more fun then we will we can ever tell!! Last edited by Willys47; 07-07-2009 at 11:49 PM. |
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#4 |
Registered User
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: 1 row vs 2 row radiator?
I hope you are talking about ALUMINUM radiators. Copper rad for our trucks are 2, 3(rare), or 4 row. A 4 row aluminum rad will, and does, cool a NASCAR engine.
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'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
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#5 |
Registered User
![]() Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,514
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Re: 1 row vs 2 row radiator?
This is one place where "more" is definitely the better option.
Even if you don't plan to tow with the truck, getting caught in a long line going in or out of a truck show or spending a lot of time in slow moving traffic is just cause for the most capacity you can manage. |
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#6 |
Big Red - Now its a SWB!
Join Date: Jun 2009
Location: Oroville, Ca
Posts: 1,624
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Re: 1 row vs 2 row radiator?
I'd run the larger one, I'm also assuming aluminum here. If going with copper/brass the smallest I'd run is the 3 core
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68 3/4 ton ![]() ![]() 41 3/4 ton ![]() 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's |
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#7 |
Registered User
Join Date: Feb 2009
Location: OKC OK
Posts: 489
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Re: 1 row vs 2 row radiator?
I just put a 4 four row in my truck, it runs 25-35% cooler than it did with the old 3 row, I had to mod my mounts a little and I currently have zip ties holding the shroud on!
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"You can put lipstick on a pig, sure it's pretty pig, but it's still just a PIG... ![]() 71 ![]() |
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#8 |
Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: 1 row vs 2 row radiator?
If your running aluminum, a single core would do fine, but I would also go with the bigger one.
Why do I say one core would be fine, because aluminum don't retain the heat like copper/brass rads do. A friend of mine just replaced his rad with one from Autozone, new aluminum, plastic tanked rad. one big core/row. runs just fine, keeps it cooler actually.
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*We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. * You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff! |
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#9 |
Registered User
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
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Re: 1 row vs 2 row radiator?
i plan to swap out the dinky radiator on my 3/4 ton 72 burb. it has a manual trans (3OT)and no a/c but i plan to tow with it and i will be swapping in a 406sbc in place of the 307 so the extra cooling will be helpful. i'm thinking about using the trans cooler portion as an engine oil cooler....it should work just like an aux. cooler!
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#10 |
Registered User
Join Date: Jan 2007
Location: shoreline, wa
Posts: 1,565
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Re: 1 row vs 2 row radiator?
thanks for al the replys!
yes i am taliking about aluminium radiators, i think i will go with the 2 core and a 10 blade 16inch electric fan pushing and keep the mechanical fan i just want to keep the truck running a little bit cooler now its at 205 on the freeway i want it to be around 190
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68 swb fleet bagged on 20's 327 with 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=223308 2014 Chevy 2500hd duramax CCLB |
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