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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Maintenanceman on February 27, 2010, 12:46:27 am

Title: Radiator question
Post by: Maintenanceman on February 27, 2010, 12:46:27 am
If my memory serves me correctly, the radiator in my truck is 35 inches wide. How will going to a 28 inch wide radiator affect my cooling? Im building a 355 right now and planning on going to a 16 inch electric fan and need a new radiator beacuse the inside of mine is rusted.....BAD.

1985 K20 LWB
Title: Re: Radiator question
Post by: bigwillie82 on February 27, 2010, 01:06:30 am
single row, double row, aluminum?
Title: Re: Radiator question
Post by: Irish_Alley on February 27, 2010, 02:07:37 am
whats your plans on using the truck for?
Title: Re: Radiator question
Post by: Maintenanceman on February 27, 2010, 11:14:57 am
the one im looking at is a single row radiator. as far as use of the truck, preety much just a driver
Title: Re: Radiator question
Post by: Lt.Del on February 27, 2010, 11:30:55 am
single core radiator for a truck??  ???

wow, I wouldn't do that.  My trucks have 4 - cores each. 

Do you have A/C? 

I'd have at least a 3-core for a truck.
Title: Re: Radiator question
Post by: Maintenanceman on February 27, 2010, 12:03:25 pm
Gotcha. Well wheres the best place to buy a radiator?
Title: Re: Radiator question
Post by: VileZambonie on February 27, 2010, 03:15:50 pm
You can get a heavy duty cooling 2 row aluminum core radiator for $127 bucks from autozone. part # 433730

there's some on eBay too

http://cgi.ebay.com/ebaymotors/1985-CHEVROLET-BLAZER-FULL-SIZE-ALL-ALUMINUM-RADIATOR_W0QQitemZ250511630972QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item3a53a8227c
Title: Re: Radiator question
Post by: beastie_3 on February 27, 2010, 04:51:43 pm
I just got this one yesterday and the quality looks good. http://cgi.ebay.com/ebaymotors/78-79-80-Chevy-C-K-Series-Truck-3-Row-Champion-Radiator_W0QQcmdZViewItemQQhashZitem19b70092a8QQitemZ110444450472QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Title: Re: Radiator question
Post by: Maintenanceman on February 27, 2010, 06:15:39 pm
hey vile that one went up. Its 169.99 now but thats still better than 250-300. And I like the aluminum one on ebay as well and beastie thats not a bad price if it comes with those fans
Title: Re: Radiator question
Post by: beastie_3 on February 27, 2010, 06:33:13 pm
Maintenanceman, yes that radiator comes with the fans and a install kit to attach them to the radiator. Its cheaper without the fans. The quality seems good so far. I just need to get my butt in gear and install it all.
Title: Re: Radiator question
Post by: Grover 1 on February 27, 2010, 07:23:08 pm
Beastie, let me know what you think after it's installed.  That seems like a deal too good to be true.  Is it Made in USA?
Title: Re: Radiator question
Post by: beastie_3 on February 27, 2010, 07:43:27 pm
OK guys, Ill let you know when everything is done. Ill try to get some good pics also.

Keep in mind it might be a bit til I get to it, I have tons of school work this week and next week and the weather cant make up its mind. At the very least, Ill take some pics soon of the radiator and fans by themselves. It has moisture in the inside, so it was pressure tested. The company I bought it from says his supplier is in southern California, which is where they were shipped from. Ill see if there is any reference to USA built or not.
Title: Re: Radiator question
Post by: malibu795 on February 27, 2010, 09:47:17 pm
35"x28"?????? ???

the most common is 31x19..  28" tall would put you through the hood on most trucks....
Title: Re: Radiator question
Post by: beastie_3 on February 27, 2010, 11:20:00 pm
35"x28"?????? ???

the most common is 31x19..  28" tall would put you through the hood on most trucks....

He said the new one he was looking at was 28 wide vs the 35 he has now. He was wondering if it would be too small.
Title: Re: Radiator question
Post by: malibu795 on February 28, 2010, 06:04:15 am
35"x28"?????? ???

the most common is 31x19..  28" tall would put you through the hood on most trucks....

He said the new one he was looking at was 28 wide vs the 35 he has now. He was wondering if it would be too small.

im wondering how he can get a 35x28" in there.. with out serious modification to the radiator core support.

Title: Re: Radiator question
Post by: VileZambonie on February 28, 2010, 10:47:13 am
I think he's measuring the whole radiator instead of the core.
Title: Re: Radiator question
Post by: malibu795 on February 28, 2010, 12:04:11 pm
 ???

the 31x19 that i have in my wagon is outstide dimensions..  with the core ~4" shorter in length and 1.5" in hieght

the one in my 75 K20 has a smaller core(bigger tanks) but same outside demenstions as my summit universal drop in..

i have used the same radiator in my 84 C30 dually
Title: Re: Radiator question
Post by: beastie_3 on February 28, 2010, 01:21:00 pm
35"x28"?????? ???

the most common is 31x19..  28" tall would put you through the hood on most trucks....

He said the new one he was looking at was 28 wide vs the 35 he has now. He was wondering if it would be too small.

im wondering how he can get a 35x28" in there.. with out serious modification to the radiator core support.



Where are you getting the 28" TALL measurement from? He never said his radiator is 35x28. He is comparing his current 35 wide to a 28 wide. He never talks about height.


I think vile is correct, he possibly measured the tanks as well.
Title: Re: Radiator question
Post by: malibu795 on February 28, 2010, 06:00:35 pm
oops miss read..


still aint fititng a 28" tall rad in ther with out adjustment  ;)
Title: Re: Radiator question
Post by: Maintenanceman on March 02, 2010, 12:20:28 pm
yea I measured from tank to tank. But anyway I picked up a alluminum radiator for pretty cheap, Its 28 wide. Im going to give it a shot and see how it does.