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how much hp will a stock 26 inch radiator cool? #1211086 04/06/12 07:14 PM 04/06/12 07:14 PM
Joined: Jan 2003 Posts: 2,023 Lincoln NE 4 440forPOWER OP super gas
440forPOWER OP super gas 4 Joined: Jan 2003 Posts: 2,023 Lincoln NE	Just curious, how much hp will a stock 26 inch radiator cool. I'm building a 520hp 470 for cruising. And was just curious if the stock 26 inch rad would keep it cool? Right now the stock 383 keeps cool but pukes after running a while and shutting it down. Thanks

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211087 04/06/12 07:34 PM 04/06/12 07:34 PM
Joined: Jan 2003 Posts: 75,126 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,126 A Banana Republic near you.	is it a 2 core or 3 core ?

Re: how much hp will a stock 26 inch radiator cool? [Re: JohnRR] #1211088 04/06/12 07:44 PM 04/06/12 07:44 PM
Joined: Jan 2003 Posts: 2,023 Lincoln NE 4 440forPOWER OP super gas
440forPOWER OP super gas 4 Joined: Jan 2003 Posts: 2,023 Lincoln NE	I believe it's a 2 core. I'll have to check. Stock in a 70 challenger r/t 383 with ac. Last edited by 440forPOWER; 04/06/12 07:45 PM.

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211089 04/06/12 09:44 PM 04/06/12 09:44 PM
Joined: Jan 2003 Posts: 28,078 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,078 Irving, TX	One of them cooled my twin turbocharged 440 despite one turbo being close enough to heat up the side of the radiator. Unless I was absolutely brutal to it on a 100+ degree night the temp gauge would stay under 200 on a 190 t-stat. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211090 04/06/12 11:31 PM 04/06/12 11:31 PM
Joined: Aug 2007 Posts: 1,271 Vista, California 6 67Satty pro stock
67Satty pro stock 6 Joined: Aug 2007 Posts: 1,271 Vista, California	Quote: I believe it's a 2 core. I'll have to check. Stock in a 70 challenger r/t 383 with ac. It's a three core if it came with an A/C car. Even my 318 A/C car came with a 26" three core.

Re: how much hp will a stock 26 inch radiator cool? [Re: 67Satty] #1211091 04/07/12 01:02 AM 04/07/12 01:02 AM
Joined: Jan 2003 Posts: 20,983 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,983 A collage of whims	The one in my Roadrunner has been fine for almost 30 years now, 540 HP 4-speed, 3 rows, never gets hot, 180 thermostat. Stock fan, shroud, & fan clutch.

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211092 04/07/12 10:23 PM 04/07/12 10:23 PM
Joined: Dec 2003 Posts: 22,800 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,800 Bitopia	Quote: Just curious, how much hp will a stock 26 inch radiator cool. I'm building a 520hp 470 for cruising. And was just curious if the stock 26 inch rad would keep it cool? Right now the stock 383 keeps cool but pukes after running a while and shutting it down. Thanks Remember what they say about curiosity. Anyway, for peace of mind, just spend an extra $300? on a aftermarket alum rad on your 520hp build and cruise cool. Cooling problems then will from your tune, air flow, etc , not the rad. The possible cooling variables are nearly endless, just eliminate the radiator as one. Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: how much hp will a stock 26 inch radiator cool? [Re: jcc] #1211093 04/08/12 02:09 AM 04/08/12 02:09 AM
Joined: Jul 2005 Posts: 1,472 Overland Park, KS. J Joshs68 pro stock
Joshs68 pro stock J Joined: Jul 2005 Posts: 1,472 Overland Park, KS.	My 470 uses a 3 row 22" double pass and no fan shroud. I was driving it around today and it got to 190 in traffic. runs 180 while moving. I am at about that HP level. It is a replacement from US Radiator. I will put a shroud on it eventually just have not gotten around to it.

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211094 04/08/12 10:42 AM 04/08/12 10:42 AM
Joined: Aug 2005 Posts: 1,387 Az 69hemibeep pro stock
69hemibeep pro stock Joined: Aug 2005 Posts: 1,387 Az	Quote: Just curious, how much hp will a stock 26 inch radiator cool. I'm building a 520hp 470 for cruising. And was just curious if the stock 26 inch rad would keep it cool? Right now the stock 383 keeps cool but pukes after running a while and shutting it down. Thanks I'm going to guess that your 383 runs at a normal temp but pukes at after boil when shut down. After it does this you feel compelled to add coolant which will make it do it again. Let it puke until it stops, keep an eye on it of coarse, I find they like to be about 1/3 low on the upper tank so there is room to expand at after boil. As far as HP it will cool, I dont know 1969 Hemi Roadrunner 2nd owner

Re: how much hp will a stock 26 inch radiator cool? [Re: 69hemibeep] #1211095 04/08/12 11:31 AM 04/08/12 11:31 AM
Joined: Jan 2003 Posts: 28,078 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,078 Irving, TX	Put a puke tank on it so the radiator can draw the coolant back in when it cools. No more problem. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211096 04/08/12 12:31 PM 04/08/12 12:31 PM
Joined: Nov 2007 Posts: 21,855 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,855 Kirkland, Washington	Why do people keep gauging cooling capacity against horsepower? Its not a direct relationship.

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211097 04/08/12 12:35 PM 04/08/12 12:35 PM
Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada R RUNCHARGER I Live Here
RUNCHARGER I Live Here R Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada	If there's anything that looks bad under the hood (in addition to plastic covers on a new engine) it's a cheap aluminum rad and aftermarket rad cap. that 26 incher will cool 600HP with ease. I run one on my 550HP 472 and I recored it with the cheaper smaller tubes. I suggest you recore it with a 3 core big tube core, use a shroud and proper stock clutch fan and you'll be good to go. Sheldon 7156366-66coronet4.jpg (59 downloads)

Re: how much hp will a stock 26 inch radiator cool? [Re: RUNCHARGER] #1211098 04/08/12 12:38 PM 04/08/12 12:38 PM
Joined: Jan 2003 Posts: 2,023 Lincoln NE 4 440forPOWER OP super gas
440forPOWER OP super gas 4 Joined: Jan 2003 Posts: 2,023 Lincoln NE	Yep I want the factory Radiator look. Thats why I'm asking. Otherwise I might go with a Griffin.

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211099 04/08/12 12:40 PM 04/08/12 12:40 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	A stock 26" is best, run it!!

Re: how much hp will a stock 26 inch radiator cool? [Re: 440forPOWER] #1211100 04/08/12 05:00 PM 04/08/12 05:00 PM
Joined: Jan 2003 Posts: 5,450 So Cal Sinitro master
Sinitro master Joined: Jan 2003 Posts: 5,450 So Cal	Keep in mind.. What the OE factory used to kool their big blocks including the Hemi.. Shroud, clutch fan.. This is a very mis-understood area.. Guys are hanging on multiple electrical pushers and pullers if they just went back to the Ma Mopar basics.. Now if somebody is.. Running an 800HP, blown engine On the street Lives in Mojave, CA Sitting in stop/go traffic 105 degrees outside temperature.. Maybe then.. Something else is required.. Just my $0.02..

Re: how much hp will a stock 26 inch radiator cool? [Re: Sinitro] #1211101 04/09/12 01:32 PM 04/09/12 01:32 PM
Joined: Dec 2003 Posts: 329 Cincinnati, OH 6 68red440 enthusiast
68red440 enthusiast 6 Joined: Dec 2003 Posts: 329 Cincinnati, OH	The shroud, fan, fan spacing, T-stat, pulleys, etc. are just as important as the radiator itself. All last year I tried to make my huge dual electric fan set-up (4200 CFM) work on my mild (500hp) 440. This year it hardly comes off the 180 T-stat. - 26" Glen-Ray radiator w/closer tube spacing - flex fan - stock shroud w/fan half in and half out - Milodon high flow 180 T-stat - stock pulleys sizes Bob Schirmer at Glen-Ray helped me A LOT in diagnosing my problem, but we just couldn't make the electric fans work. He tried to solve my problem without selling me a new radiator, but his radiator certainly helped. He's never seen a street car run hot with this combination of Hayden flex fan & radiator.

Re: how much hp will a stock 26 inch radiator cool? [Re: RUNCHARGER] #1211102 04/09/12 10:36 PM 04/09/12 10:36 PM
Joined: Dec 2003 Posts: 22,800 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,800 Bitopia	Quote: If there's anything that looks bad under the hood (in addition to plastic covers on a new engine) it's a cheap aluminum rad and aftermarket rad cap. Sheldon You don't think that might just be personal preference, do you? If they leave the sticker price on the radiator the telltale sign? Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

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