455 Olds what radiator????

[CutlassJ]

Ok guys need some help. I have been running an aluminum g-body parts.com radiator with my big block cause at the time which was a few years ago now, the price was the best i could afford. But its not cutting it the car runs hot and if there is traffic for get about it. So what are you guys with big block oldsmobiles running? I want to stick with an aluminum radiator because I like the weight saveings. thanks for the help

 

[oldsmobile joe]

i put my 455 in about 15 years ago. there weren't any inexpensive radiators made in aluminum at that time for gbody cars. so i measured up the space and got a generic radiator from a company called northern. its a double row of 1" tube. i had to fab up hold downs for the top of the radiator. and it has worked flawlessly.
i think there are more choices today. and better prices. i hope some else will provide more updated info.
joe

 

[565bbchevy]

In my Monte I am running a Griffen Dominator radiator 31" x 19" with 2 x 1.25" tubes along with Intreped fans and it cools my street driven BBC without issues.
In my 86' Regal I bought a 3 row Champion radiator that will eventually be cooling a 350 horse SBC

 

[CutlassJ]

i put my 455 in about 15 years ago. there weren't any inexpensive radiators made in aluminum at that time for gbody cars. so i measured up the space and got a generic radiator from a company called northern. its a double row of 1" tube. i had to fab up hold downs for the top of the radiator. and it has worked flawlessly.
i think there are more choices today. and better prices. i hope some else will provide more updated info.
jo

Ya thanks me too. Ill keep that in mind

 

[1bad79]

I run a stock 307 one from a mid 80's 4door cutlass about 1 1/4 thick I think I know it's two rows I paid 55.00 for it from the junk yard It looked almost new I have a shroud that covers the entire radiator and run fans from a Plymouth breeze runs between 180 and 200 depending how hot it is outside

 

[565bbchevy]

Here is the Champion 3 row radiator I put in my 86' Regal with the current 307 it fit without modifications other than needing larger hoses.

 

[1bad79]

In my Monte I am running a Griffen Dominator radiator 31" x 19" with 2 x 1.25" tubes along with Intreped fans and it cools my street driven BBC without issues.
In my 86' Regal I bought a 3 row Champion radiator that will eventually be cooling a 350 horse SBC


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Does the quality look good on the champion? I've seen mixed reviews on them but the pricing looks good

 

[565bbchevy]

The quality of the Champion seems pretty good, the polished finish is not show quality but looks decent enough until I put the new engine in.
I wanted something that fit without issues, was made completely out of aluminum and had a built in trans cooler and the Champion did that.

 

[pontiacgp]

If the rad was cooling the engine for a few years I'd check the system and flush it before I spend money on a new rad. It could be a simple as the thermostat isn't opening fully or the cooling fan has a problem

 

[olds307 and 403]

The champion 3 core fits well but is not big enough for a 455, marginal with my low compression 403. There is a member on here with a 10 to 1 Olds 403 with the Champion 4 core, says it easily cools his car, should work for yours.